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The deepest report: Bitmain's self-help history

The deepest report: Bitmain's self-help history
The original intention of this article is to let readers understand the causes and consequences of Bitmain internal fighting, but after writing it, I found that it is not so much internal fighting as it is a long history of self-help.
The story is very long. Let's adjust the timeline to the eve of December 17, 2018. That was one of Bitmain's most critical moments and the beginning of a series of subsequent stories.
1. Self-immolation In September 2018, Bitmain's financial department warned management that the company's cash flow has become very tight and operating costs must be reduced to allow the company to continue. The blockchain unicorn, which is valued at more than 15 billion U.S. dollars, is crippled in the run and struggling to break the corner.
In 2017, Bitmain made a profit of 1 billion US dollars In the first half of 2018, Bitmain made a profit of 1 billion US dollars Three rounds of financing, a total of 800 million US dollars Net assets should exceed 3 billion U.S. dollars In September 2018, Bitmain had tight cash flow and was on the verge of bankruptcy
A simple comparison, it is not difficult to see that Bitmain's ability to make money is incredible, and its ability to burn money is even more extreme.
How does Bitmain burn money? Do you pour cash into gasoline and burn it, or hire a lot of employees to stuff the banknotes one by one into the shredder? The actual situation is closer to the latter.
The following data can help readers quickly learn Bitmain's money burning skills.
At the beginning of 2018, the entire cryptocurrency market has entered a bear market, but Bitmain's monthly operating costs have been rising wildly. Operating costs have risen from 10 million US dollars at the beginning of the year to 50 million US dollars at the end of the year.
Large-scale expansion of the R&D team is one of the main reasons. The HR who once worked at Bitmain revealed that the company once hired more than 50 employees a day and nearly 500 employees a month. Even so, it was criticized for its slow recruitment speed. The cash consumption in this area is approximately $250 million.
Operating costs are just the tip of the iceberg. Excessive chip trial production can become a classic case of project management courses. Readers who pay attention to Cryptocurrency mining can easily find that Bitmain is still working hard to clear the inventory of Antminer S9 in 2019. As the co-CEO, Ketuan Zhan did not listen to the advice or even warnings of the Finance Department, insisting on the implementation of Excessive chip trial production, resulting in a large accumulation of inventory and tight capital turnover. Another CEO, Jihan Wu, once revealed that the loss of Excessive chip trial production to the company was approximately US$1.5 billion.
Large-scale expansion of the R&D team is one of the main reasons. The HR who once worked at Bitmain revealed that the company once hired more than 50 employees a day and nearly 500 employees a month. Even so, it was criticized for its slow recruitment speed. The cash consumption in this area is approximately $250 million.
The BM1393 chip incident is even more incredible. Chip expert Ketuan Zhan invested a lot of money on a failed chip, and finally failed again. From 2017 to 2018, Bitmain has failed Trial production of mining machine chips at least 4 times, including 16nm, 12nm and 10nm chips, of which 16nm Trial production failed twice, thus losing at least US$1.2 billion.
It is rumored that Bitmain still holds a billion U.S. dollars worth of cryptocurrency in a state of floating loss. In view of the rebound in the market in 2020, we will not comment temporarily, waiting for the correct answer from the cryptocurrency market. But the losses pointed out in the previous article are all irreversible.
2. Sole power
In September 2018, Bitmain's management realized the seriousness of the problem. It turned out that the company's money could be squandered. As a result, the management began to discuss self-help plans, and the most reasonable and effective way was obviously to lay off employees.
The probation period for newly hired employees at Bitmain is half a year, and the probationary salary is 100% of the official salary, there is no difference. Once layoffs are made, new employees who have not passed the probationary period will be the main layoff targets. The department managed by Ketuan Zhan will face large-scale layoffs. The layoff plan is strongly opposed by Ketuan Zhan. Bitmain can only temporarily abandon the layoffs and replace it with continuous reductions. For marketing and travel expenses, a budget committee was established to strictly approve every expenditure. At the same time, employee benefits, such as reimbursement of taxi expenses, breakfast supply, snacks and drinks, etc., have also been abolished, and even the tradition of giving employees 400 yuan worth of BTC/BCH every month has been stopped.
In the face of huge cash flow pressure, trivial savings is obviously of no avail. Soon, the management again discussed the layoff plan, and it has reached the point where it has to be laid off.
In December 2018, Jihan Wu began to organize all entrepreneurial veterans and business backbones to persuade Ketuan Zhan to agree to layoffs, but Ketuan Zhan still insisted not to layoffs. The persuasion process was very unsuccessful. After many meetings and intense debates, Bitmain executives were caught in a dilemma of wasting time with Ketuan Zhan.
In this process, the shortcomings of the dual CEO system began to appear, and the relationship between the two CEOs gradually deteriorated.
On the night of December 16th, Ketuan Zhan reconvened the management meeting, and more than 30 managements who were present were asked to hand over their mobile phones. At this time, Jihan Wu was on a business trip in Hong Kong and was busy with listing related work.
In the meeting, Ketuan Zhan's core content was three items:
(1) Bitmain cannot have two CEOs, only one CEO and must be Ketuan Zhan. Ketuan Zhan said that he met an old leader during a business trip. He hadn't seen each other for many years. The old leader suggested that the company can only have one CEO, and it must be him. Ketuan Zhan feels that this is a kind of fate, an opportunity given by God.
(2) Ketuan Zhan believes that the company's cash flow problems, the biggest responsibility is the inability of the financial department. To prove his point, Ketuan Zhan announced Bitmain's financial data at the meeting. In the evening, employees in Taiwan began to post messages on social media, saying that the company's capital chain was broken and the top management was split.
(3) If Ketuan Zhan is not supported, the option will be cancelled and the equity will be voided.
Hearing about this, Jihan Wu, who lives in Hong Kong, sent a WeChat message to the management who are attending the meeting.

https://preview.redd.it/zkj2d44tqid51.jpg?width=1080&format=pjpg&auto=webp&s=9251c1f7308e155d7911d5969e71091a5ad5e14a
On the afternoon of December 17, 2018, Jihan Wu returned to Beijing to negotiate with Ketuan Zhan all night, and finally reached a consensus in the early morning. Bitmain co-founder Yuesheng Ge announced the results of the negotiations. Jihan Wu and Ketuan Zhan ceased to serve as CEOs, and Haichao Wang served as CEO. Jihan Wu voluntarily backed down and Ketuan Zhan served as chairman.
The "12.17 Incident" had a very bad impact on Bitmain, especially the disclosure of Bitmain's financial status, which caused vendors to start dunning. The loan that had just been negotiated with the Bank of Beijing was cancelled the next day. Jihan Wu's resignation as CEO caused an uproar in the industry, and it became a hot topic among Cryptocurrency mining, blockchain practitioners, and investor communities. The media focused their interpretation on Bitmain's series of incidents, and generally looked down upon its ongoing Hong Kong IPO, believing that the high-level changes had already signaled the failure of the IPO in advance.
On Christmas December 24, 2018, Bitmain finally began to implement the layoff plan. This long-delayed “correct decision” was achieved after a stalemate for nearly three months. The AI ​​teams in Beijing, Singapore, Taiwan, and Shanghai have laid off more than 50% of their employees. The Israeli R&D center was closed and Shenzhen New Species Technology Co., Ltd., which had been acquired for only ten months, was dissolved, and all employees were laid off. Copernicus, Bitmain's top blockchain development team, was not spared and was wiped out in this layoff. Copernicus and some of the laid-off employees joined the new company Matrixport co-founded by Jihan Wu and Yuesheng Ge, headquartered in Singapore.
3. Past events when starting a business
After the "12.17 Incident", Jihan Wu gradually faded out of Bitmain's management affairs and turned his attention to the IPO and new company. And this is one of Jihan Wu's major mistakes, he began to let Ketuan Zhan manage Bitmain alone.
In fact, as early as 2013, Jihan Wu planted hidden dangers.
Jihan Wu, an investment banker, was the earliest translator of the Bitcoin white paper. He began to get involved in the cryptocurrency mining industry in 2012. The disappearance of Kaomao and Nangua Zhang's ticket skipping led Jihan Wu to decide to develop his own chip.
In 2013, Jihan Wu established his own mining machine company. Together with Yuesheng Ge, who was only 20 years old, he found Ketuan Zhan, an integrated circuit designer of the Chinese Academy of Sciences, to create the protagonist of this article, and later the digital Cryptocurrency mining giant, Bitmain.
Jihan Wu promised Ketuan Zhan that every time a mining machine chip was successfully developed, he would give some shares to the Ketuan Zhan team. At that time, the company founded by Ketuan Zhan was on the eve of falling apart. In order to regroup the team, Ketuan Zhan promised to share half of his shares with the team members. Unfortunately, this is just a bad check. With the rapid development of Bitmain and higher and higher valuations, the expanding Ketuan Zhan almost monopolized all the shares.
Like many startups, Bitmain encountered many difficulties in its early days, and many jobs had to be done by the boss. For example, in the chip design and production process in the second half of 2013, Bitmain was caught in a dilemma of insufficient funds. Jihan Wu personally raised funds and met with TSMC’s sales to persuade TSMC to accept the production needs of a start-up company. Jihan Wu also participated in the selection of the thermodynamic parameters of the heat sink in the Antminer S1.
In 2014, Jihan Wu discovered that this company was independently operated by Ketuan Zhan, which had huge problems. Forcing Jihan Wu to continue to participate in company management.
At that time, Bitmain's mining machine chips had just achieved a certain lead in the standard design process. Jihan Wu believes that the next step must be to develop full customization technology, but Ketuan Zhan plans to invest resources in the research of mobile payment chips.
Ketuan Zhan met a mysterious person from the Party Central Security Bureau who claimed to be able to manipulate the Party Central Committee’s decision-making process for the next generation of mobile payment cryptography standards, but this direction is likely to lead to the fact that Bitmain has just gained the lead in the mining machine market. Regained.
Jihan Wu said that as a graduate of the School of Economics, with a little memory of his high school stage and the knowledge reserve of a computer technology amateur, he retrieves various materials and papers every day, learns theories related to full customization, and goes to Ketuan Zhan conducts persuasion work there.
Fortunately, in the direction of full customization technology, Ketuan Zhan finally listened to Jihan Wu's opinion. Bitmain quickly integrated the technical experts from the United States and Russia introduced by Jihan Wu, which greatly improved the design level of chips and complete machines.
In 2015, Jihan Wu suggested that Ketuan Zhan consider the direction of artificial intelligence. But Ketuan Zhan is not here, he prefers the CPU direction. After staying asleep at night, coupled with in-depth analysis by the Bitmain investment team, Ketuan Zhan finally agreed with this direction. It is a pity that after the Tianshi Chen brothers made major breakthroughs in theory and practice, Bitmain officially invested in the relevant direction, and it was still a step behind.
In the two years from 2016 to 2017, Bitmain's business performance has achieved rapid development, becoming a unique super unicorn in the blockchain industry. According to Froth & Sullivan, in 2017, Bitmain Technology Holdings was the second largest fabless chip design company in China and the tenth largest fabless chip design company in the world, and the fourth largest fabless ASIC chip design company in the world, accounting for 74.5% of global cryptocurrency market share.
However, the huge crisis has long been buried in the early days of entrepreneurship.
Ketuan Zhan's decision on major directions revealed his weakness of extremely lack of business understanding. But every mistake he made was blocked by the company's core employees. His overconfidence in his management ability led to the gradual intensification of conflicts, and the management differences between the two founders became more serious.
4.The giant gets lost
The contradiction between the two broke out on December 17, 2018. Ketuan Zhan used extreme means to force the management to compromise with him by canceling the option, so as to achieve the goal of sole control of the company. Jihan Wu returned to Beijing from Hong Kong overnight and negotiated with Ketuan Zhan all night. In the end, the two resigned as CEO. Jihan Wu retired. Ketuan Zhan has the exclusive rights of chairman in exchange for the implementation of the layoff plan.
Jihan Wu's voluntary retreat has intensified Ketuan Zhan's management to do whatever he wants.
A Bitmain employee commented on Ketuan Zhan's management skills, summed up in two letters-SM.
After becoming the sole helm of the company, Ketuan Zhan quickly "rectified" the department in charge of Jihan Wu as the chairman of the board. He guided the sales of mining machines at the dinner, and pointed out that the sales performance is not due to the sales staff. Ability is strong, but the company provides opportunities. Take two sales leaders as examples, saying that if the company hadn't given the opportunity, they would still be losers. In addition, Ketuan Zhan also instructed the sales staff on how to toast and imparted the wine table culture and experience.
After the meal, Ketuan Zhan came to the conclusion that the quality of Bitmain sales staff was too poor, and Huawei’s blood needs to be injected to drive the company’s progress. Soon, the marketing and sales director from Huawei officially took over Bitmain, opening the era of brand premium for Antminer.
In order to further understand and guide the sales work, Ketuan Zhan asked to meet the customers with the sales staff. During the negotiation process, Ketuan Zhan had a heated discussion with customers on the issue of Chinese and Western medicine, and had also forced the sales staff to be able to ship 10,000 machines due to insufficient production capacity.
Although the requirements for sales personnel are strict, Ketuan Zhan has provided a lot of convenience for "Mainland Ark". In addition to selling mining machines at a more favorable price, Bitmain's mining machines are also hosted in Ming Wang at a higher price than the market price. Mine. It is reported that both Ketuan Zhan and Ming Wang are shareholders of Ark.
The new sales strategy of Huawei's executives has also brought very obvious changes to Bitmain. The self-righteous brand premium reduces the price-performance ratio of Antminer, causing competing products to eat away at Bitmain's market share. Later, Bitmain found that the strategy was wrong and started to cut prices, and found that the mining machine market was saturated and the purchase demand of miners had decreased.
More dangerous than the sales strategy is that the technical advantages of Antminer are being chased by competing products, and even overtaken. At the same time, the two mining pools under Bitmain also lost their first and second positions. The AI ​​business, which Jihan Wu placed high hopes and Ketuan Zhan personally supervised, became a laughing stock in the industry. Not only did it fail to make a profit, it almost brought down Bitmain.
Blindly introducing senior executives from Huawei to occupy important positions completely destroys the company's internal cultural foundation. The bureaucracy within Bitmain began to corrode from high-level employees to ordinary employees. Ketuan Zhan is not aware of this. He is still keen on recruiting Huawei employees, imitating Huawei's organizational structure and strategy, letting HR do sales and R&D personnel to do HR.
The organizational structure adjustment in October 2019 was the fuse for Ketuan Zhan to completely anger Bitmain management. This time, Ketuan Zhan completely marginalized Bitmain’s veteran employees, and suddenly promoted some of the “airborne soldiers” who had just joined the company to the position of person in charge, which caused the former person in charge to report to the new employees. The two managers who were originally equal The hierarchy becomes the subordinate relationship, the operation and development of different business lines are merged into a large department, the upward reporting process becomes more cumbersome, and the relationship between employees becomes delicate.
5. Headwind
On October 29, 2019, Jihan Wu urgently held a staff meeting. Prior to this, the legal representative of Beijing Bitmain has been changed to Jihan Wu, including the parent companies Hong Kong Bitmain and Cayman Bitmain. Jihan Wu stood in the lobby of Building 25, B1, announcing that Ketuan Zhan has been relieved of all duties. Any employee in the Bitmain Group shall no longer execute Ketuan Zhan’s instructions and participate in any meetings convened by Ketuan Zhan. If there is any violation, the company will demotion and expel the company based on the severity of the circumstances. If losses are caused to the company, the company will be held accountable.
Jihan Wu's speech is very long, which can be summarized as follows:
(1) Ketuan Zhan has been relieved of all duties. Also expelled from the original Huawei company HR Zhi Wang introduced by Ketuan Zhan at the end of 2018. Zhi Wang’s reputation on Bitmain was extremely poor and was ridiculed by employees as "nine thousand years" (In ancient China, the emperor was called "ten thousand years old", and the prince was "eight thousand years old." However, in the Ming Dynasty, there was an eunuch who caused harm to the country and the people. He called himself "nine thousand years old", meaning that he was only A little lower than the emperor's level).
(2) Ketuan Zhan's ability to control the company's option incentive plan has disappeared, and it is no longer possible to cancel employees' options at will.
(3) The organizational structure adjustment plan led by Ketuan Zhan was suspended.
(4) We are optimistic about the future of AI business, but the premise is that the main business can continue to make profits in order to support the company's continued investment in AI business.
In the speech, Jihan Wu also told employees the whole story of the "12.17 Incident" and bluntly said that the company is not in good condition. If no measures are taken, Bitmain is likely to go bankrupt in three quarters and he must come back to save the company.
At this time, Ketuan Zhan, who was on a business trip in Shenzhen, finally experienced the situation of Jihan Wu in the "12.17 Incident".
After the official return, Jihan Wu began to clearly point out the company's various problems in operation and management, and went deep into each business line to understand the situation. In the mining machine sales department meeting, employees spoke enthusiastically, reflecting on the difficulties and opinions encountered in the work, the marketing and sales director from Huawei asked with a surprised look, "Why didn't these issues be reported to me before?", and soon , The director was interviewed and "voluntarily resigned."
On November 2, 2019, Jihan Wu announced a salary increase for all employees. Bitmain’s last salary increase dates back to 2018. In principle, Bitmain has two salary increases every year.
On November 7, 2019, Ketuan Zhan spoke on social media for the first time, describing his hardship in starting a business, and condemning Jihan Wu for “stabbing a knife in the back”. At the end of the article, he also set himself a KPI for 2020, that is, the mining machine market share will reach 90%, and the AI ​​business will earn 1 billion.
But Ketuan Zhan's majestic plan did not make Bitmain employees feel emotional, but ridiculed him instead. Employees exposed that he insulted employees, advocated Chinese medicine, believed in Buddhism, drank in meetings, practiced Qigong...
However, there is less than half a year before the halving of Bitcoin production, and the cryptocurrency market shows no signs of recovery, which makes Bitmain management very anxious.
On January 6, 2020, Bitmain ushered in another round of layoffs, with a layoff ratio of about 1/3. This time the layoffs have caused many employees who have just increased their salaries to feel very grieved. On the one hand, they were looking forward to Jihan Wu's return. On the other hand, the compensation for this layoff was less than 18 years.
Ketuan Zhan, who has been unable to enter the Bitmain office area, once again spoke on social media and firmly opposed to layoffs. We do not need to lay off staff and we cannot commit suicide.
During the Spring Festival, Covid-19 broke out. Mainland China has begun to extend the Spring Festival holiday and advocate working from home. Under the chain reaction caused by Covid-19, most companies have chosen to cut salaries or even lay off employees. In the first two months of 2020, China's exports fell by 17%, U.S. stocks were broken four times in a row, Bitcoin plunged 40% in 24 hours on March 12, 2020, and crude oil futures fell by 300% on April 20, 2020...
Obviously, Jihan Wu can't predict, but this layoff seems to be the right decision again. In addition, from January to April 2020, Bitmain's revenue exceeded US$400 million amid the spread of Covid-19 and the collapse of the financial market.
6. Fight to the death
When Jihan Wu tried to get the company back on track, Ketuan Zhan was not helpless. On April 28, 2020, Ketuan Zhan finally rolled back the legal representative of Beijing Bitmain to before October 28, 2019 by repeatedly submitting administrative reconsiderations, and restored his status as a legal representative.
On the morning of May 8, 2020, a piece of news about Bitmain quickly appeared on the real-time hot search rankings, and even dominated the headlines of the day. At window 52 on the second floor of the Haidian District Government Affairs Center, when Ketuan Zhan, the legal person of Beijing Bitmain Company, was receiving the business license, a group of unidentified people snatched the business license from the industrial and commercial administrative staff. A source at the scene said that the number of unidentified people in the group was about 60 people, of which Luyao Liu was directing at the scene.
This is a skillful piece of news. It first leads readers to think that Ketuan Zhan is a victim, using 60 people to grab business licenses as the focus. The masses accused Jihan Wu of lawlessness, but ignored whether the government affairs center could have 60 personnel. As for Hong Kong Bitmain to have the right to appoint a representative to obtain a business license, this is a deeper level of thinking.
The follow-up report restored the real situation at the scene. Only more than ten people were present, and both sides were equipped with security personnel. Bitmain employees also broke the news in the circle of friends, claiming that Ketuan Zhan's bodyguard had injured Bitmain's authorized person, and said in a threatening tone, "Be careful!"
However, the subsequent plot reversal did not have much effect. Jihan Wu's reputation has been greatly affected. From a bloody soldier who rescued the company in trouble to a lawless criminal, it can be said to be a world of war. do not.
Ketuan Zhan, who succeeded in the first battle, began to counterattack Bitmain continuously. On the afternoon of June 3, 2020, Ketuan Zhan led a team to pry open the back door of the Beijing Bitmain office and formally occupied the deserted Beijing headquarters.
On June 4, 2020, Ketuan Zhan called on Bitmain employees to resume work and promised to expand the company's market value to more than US$50 billion within three to five years. After that, Ketuan Zhan began to contact employees by phone, trying to acquire the options in the hands of employees at a valuation of 4 billion US dollars.
Subsequently, Ketuan Zhan recalled Huawei's executives and issued a series of personnel appointments and removals. As of June 9, 2020, Ketuan Zhan has successively eliminated CFO Luyao Liu, and Wenguang Wang, the head of the mining center. Luyao Liu is responsible for controlling Bitmain's IPO plan. He also appointed Yanwu Ma as the HR director, Gang Ren as the head of the mining center, Yonggang Sun as the head of the supply chain, Ling Gu as the financial director, and Bin Zhu as the head of the mining machine business department. Bin Zhu is the senior executive of Huawei who was interviewed and left as mentioned in the previous article. During his tenure, he reduced Antminer’s 90% market share to 50%, and received a large number of complaints from miners. Internal employees once speculated that he might be Compete against the spies sent by the company.
In addition to recalling senior executives of Huawei, Ketuan Zhan also urged employees to return to work. They can receive a bonus of 10,000 yuan when they return to work on the same day, which is only half the next day. Ketuan Zhan showed a very kind side. Every time the elevator door is opened, Ketuan Zhan's hot gaze can be met, shaking hands, taking photos, and receiving money. As there is no personnel information, Ketuan Zhan does not know whether the person receiving the money is a Bitmain employee, and these people did not resume work the next day.
The effect of gentleness was not good, Ketuan Zhan began to force employees to return to work. Seeing that there are still very few respondents, Ketuan Zhan threatened employees through SMS, phone calls, EMS, emails and other harassment, issued multiple threats such as termination of contract, suspension of payment of social insurance, suspension of wages, and even used personal information saved by employees to form a group of employees. Domicile threats, requiring employees to perform "work handover", trying to force employees to return work computers, etc.
On June 10, 2020, the media revealed that Ketuan Zhan had controlled Bitmain's Shenzhen factory and prohibited employees from delivering normal shipments to paid customers, which caused difficulties in the operation of the Bitmain mining machine department.
On June 13, 2020, Hong Kong Bitmain, the parent company of Beijing Bitmain, issued a statement accusing Ketuan Zhan of signing a "Sales Agency Agreement" with the Ark Data Technology Co., Ltd. in which it holds shares, in an attempt to embezzle Beijing Bit's assets.
On June 17, 2020, the media revealed that Ketuan Zhan started selling 14,000 T17+ series mining machines at low prices.
On June 20, 2020, Hong Kong Bitmain officially suspended the supply of chips to the Shenzhen factory.
On July 13, 2020, in the "A Letter to All My colleagues in the Shenzhen Factory" released by Bitmain in Hong Kong, more details were added on the series of Ketuan Zhan's actions in June.
The legal person Feng Zhou of the Shenzhen plant is related to Ketuan Zhan. After being relieved of Ketuan Zhan's post, Jihan Wu flew to Shenzhen to have a long talk with Feng Zhou. Jihan Wu believes that Feng Zhou is the right person to manage the factory and help the company overcome difficulties, and decides to leave Feng Zhou to continue to manage the factory.
This wrong decision staged a story of a farmer and a snake. When Ketuan Zhan began to counterattack Bitmain, Feng Zhou was also quickly instigated and began to assist Ketuan Zhan in seizing customer machines and transferring 17,000 T17 mining machines in the warehouse. Hainan Continental Ark Data Technology Co., Ltd., which is held by Ketuan Zhan, sold them at a low price.
In order to protect the interests of customers, Jihan Wu had to make a compromise and paid the payment for some goods to a bank account controlled by Ketuan Zhan in exchange for delivery. However, after the other party received a payment of 109 million, the delivery stopped. On July 8, 2020, 5600 mining machines have been overdue.
At the same time, the factory defaulted on suppliers’ accounts payable as much as 200 million yuan. Bank acceptance bills issued by the factory, exceeding 36 million yuan, will expire on July 17, and more than 34 million yuan will expire on July 23. It is understood that Ketuan Zhan, after receiving the bank's dunning call, made it clear that he would not repay the loan, which would destroy the company and the entire group's credit in financial institutions.
7、 This is not the end
So far, the power struggle between the founders of Bitmain has been more than half a year. The office building already occupied by Ketuan Zhan is still empty, and most employees choose to work from home. Some chip developers returned to the office with the acquiescence of Jihan Wu and continued to maintain research and development to reduce the impact of infighting on technological iteration and competitiveness.
This giant ship that once stood on top of the supercomputer chip is crashing into the iceberg due to the madness of the former helm. Ketuan Zhan's madness and Jihan Wu's compromise made mistakes again and again. Bitmain tried to save himself many times, but was unable to get out of the black hole.
If the time goes back to that day in 2013, would Jihan Wu and Yuesheng Ge still choose to dial Ketuan Zhan?
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The deepest report: Bitmain's self-help history

The deepest report: Bitmain's self-help history
The original intention of this article is to let readers understand the causes and consequences of Bitmain internal fighting, but after writing it, I found that it is not so much internal fighting as it is a long history of self-help.
The story is very long. Let's adjust the timeline to the eve of December 17, 2018. That was one of Bitmain's most critical moments and the beginning of a series of subsequent stories.
1. Self-immolation In September 2018, Bitmain's financial department warned management that the company's cash flow has become very tight and operating costs must be reduced to allow the company to continue. The blockchain unicorn, which is valued at more than 15 billion U.S. dollars, is crippled in the run and struggling to break the corner.
In 2017, Bitmain made a profit of 1 billion US dollars In the first half of 2018, Bitmain made a profit of 1 billion US dollars Three rounds of financing, a total of 800 million US dollars Net assets should exceed 3 billion U.S. dollars In September 2018, Bitmain had tight cash flow and was on the verge of bankruptcy
A simple comparison, it is not difficult to see that Bitmain's ability to make money is incredible, and its ability to burn money is even more extreme.
How does Bitmain burn money? Do you pour cash into gasoline and burn it, or hire a lot of employees to stuff the banknotes one by one into the shredder? The actual situation is closer to the latter.
The following data can help readers quickly learn Bitmain's money burning skills.
At the beginning of 2018, the entire cryptocurrency market has entered a bear market, but Bitmain's monthly operating costs have been rising wildly. Operating costs have risen from 10 million US dollars at the beginning of the year to 50 million US dollars at the end of the year.
Large-scale expansion of the R&D team is one of the main reasons. The HR who once worked at Bitmain revealed that the company once hired more than 50 employees a day and nearly 500 employees a month. Even so, it was criticized for its slow recruitment speed. The cash consumption in this area is approximately $250 million.
Operating costs are just the tip of the iceberg. Excessive chip trial production can become a classic case of project management courses. Readers who pay attention to Cryptocurrency mining can easily find that Bitmain is still working hard to clear the inventory of Antminer S9 in 2019. As the co-CEO, Ketuan Zhan did not listen to the advice or even warnings of the Finance Department, insisting on the implementation of Excessive chip trial production, resulting in a large accumulation of inventory and tight capital turnover. Another CEO, Jihan Wu, once revealed that the loss of Excessive chip trial production to the company was approximately US$1.5 billion.
Large-scale expansion of the R&D team is one of the main reasons. The HR who once worked at Bitmain revealed that the company once hired more than 50 employees a day and nearly 500 employees a month. Even so, it was criticized for its slow recruitment speed. The cash consumption in this area is approximately $250 million.
The BM1393 chip incident is even more incredible. Chip expert Ketuan Zhan invested a lot of money on a failed chip, and finally failed again. From 2017 to 2018, Bitmain has failed Trial production of mining machine chips at least 4 times, including 16nm, 12nm and 10nm chips, of which 16nm Trial production failed twice, thus losing at least US$1.2 billion.
It is rumored that Bitmain still holds a billion U.S. dollars worth of cryptocurrency in a state of floating loss. In view of the rebound in the market in 2020, we will not comment temporarily, waiting for the correct answer from the cryptocurrency market. But the losses pointed out in the previous article are all irreversible.
2. Sole power
In September 2018, Bitmain's management realized the seriousness of the problem. It turned out that the company's money could be squandered. As a result, the management began to discuss self-help plans, and the most reasonable and effective way was obviously to lay off employees.
The probation period for newly hired employees at Bitmain is half a year, and the probationary salary is 100% of the official salary, there is no difference. Once layoffs are made, new employees who have not passed the probationary period will be the main layoff targets. The department managed by Ketuan Zhan will face large-scale layoffs. The layoff plan is strongly opposed by Ketuan Zhan. Bitmain can only temporarily abandon the layoffs and replace it with continuous reductions. For marketing and travel expenses, a budget committee was established to strictly approve every expenditure. At the same time, employee benefits, such as reimbursement of taxi expenses, breakfast supply, snacks and drinks, etc., have also been abolished, and even the tradition of giving employees 400 yuan worth of BTC/BCH every month has been stopped.
In the face of huge cash flow pressure, trivial savings is obviously of no avail. Soon, the management again discussed the layoff plan, and it has reached the point where it has to be laid off.
In December 2018, Jihan Wu began to organize all entrepreneurial veterans and business backbones to persuade Ketuan Zhan to agree to layoffs, but Ketuan Zhan still insisted not to layoffs. The persuasion process was very unsuccessful. After many meetings and intense debates, Bitmain executives were caught in a dilemma of wasting time with Ketuan Zhan.
In this process, the shortcomings of the dual CEO system began to appear, and the relationship between the two CEOs gradually deteriorated.
On the night of December 16th, Ketuan Zhan reconvened the management meeting, and more than 30 managements who were present were asked to hand over their mobile phones. At this time, Jihan Wu was on a business trip in Hong Kong and was busy with listing related work.
In the meeting, Ketuan Zhan's core content was three items:
(1) Bitmain cannot have two CEOs, only one CEO and must be Ketuan Zhan. Ketuan Zhan said that he met an old leader during a business trip. He hadn't seen each other for many years. The old leader suggested that the company can only have one CEO, and it must be him. Ketuan Zhan feels that this is a kind of fate, an opportunity given by God.
(2) Ketuan Zhan believes that the company's cash flow problems, the biggest responsibility is the inability of the financial department. To prove his point, Ketuan Zhan announced Bitmain's financial data at the meeting. In the evening, employees in Taiwan began to post messages on social media, saying that the company's capital chain was broken and the top management was split.
(3) If Ketuan Zhan is not supported, the option will be cancelled and the equity will be voided.
Hearing about this, Jihan Wu, who lives in Hong Kong, sent a WeChat message to the management who are attending the meeting.

https://preview.redd.it/c5cxea2lqid51.jpg?width=1080&format=pjpg&auto=webp&s=3d6a0388408f6b8abe10648e5e4b7a3a5434c821
On the afternoon of December 17, 2018, Jihan Wu returned to Beijing to negotiate with Ketuan Zhan all night, and finally reached a consensus in the early morning. Bitmain co-founder Yuesheng Ge announced the results of the negotiations. Jihan Wu and Ketuan Zhan ceased to serve as CEOs, and Haichao Wang served as CEO. Jihan Wu voluntarily backed down and Ketuan Zhan served as chairman.
The "12.17 Incident" had a very bad impact on Bitmain, especially the disclosure of Bitmain's financial status, which caused vendors to start dunning. The loan that had just been negotiated with the Bank of Beijing was cancelled the next day. Jihan Wu's resignation as CEO caused an uproar in the industry, and it became a hot topic among Cryptocurrency mining, blockchain practitioners, and investor communities. The media focused their interpretation on Bitmain's series of incidents, and generally looked down upon its ongoing Hong Kong IPO, believing that the high-level changes had already signaled the failure of the IPO in advance.
On Christmas December 24, 2018, Bitmain finally began to implement the layoff plan. This long-delayed “correct decision” was achieved after a stalemate for nearly three months. The AI ​​teams in Beijing, Singapore, Taiwan, and Shanghai have laid off more than 50% of their employees. The Israeli R&D center was closed and Shenzhen New Species Technology Co., Ltd., which had been acquired for only ten months, was dissolved, and all employees were laid off. Copernicus, Bitmain's top blockchain development team, was not spared and was wiped out in this layoff. Copernicus and some of the laid-off employees joined the new company Matrixport co-founded by Jihan Wu and Yuesheng Ge, headquartered in Singapore.
3. Past events when starting a business
After the "12.17 Incident", Jihan Wu gradually faded out of Bitmain's management affairs and turned his attention to the IPO and new company. And this is one of Jihan Wu's major mistakes, he began to let Ketuan Zhan manage Bitmain alone.
In fact, as early as 2013, Jihan Wu planted hidden dangers.
Jihan Wu, an investment banker, was the earliest translator of the Bitcoin white paper. He began to get involved in the cryptocurrency mining industry in 2012. The disappearance of Kaomao and Nangua Zhang's ticket skipping led Jihan Wu to decide to develop his own chip.
In 2013, Jihan Wu established his own mining machine company. Together with Yuesheng Ge, who was only 20 years old, he found Ketuan Zhan, an integrated circuit designer of the Chinese Academy of Sciences, to create the protagonist of this article, and later the digital Cryptocurrency mining giant, Bitmain.
Jihan Wu promised Ketuan Zhan that every time a mining machine chip was successfully developed, he would give some shares to the Ketuan Zhan team. At that time, the company founded by Ketuan Zhan was on the eve of falling apart. In order to regroup the team, Ketuan Zhan promised to share half of his shares with the team members. Unfortunately, this is just a bad check. With the rapid development of Bitmain and higher and higher valuations, the expanding Ketuan Zhan almost monopolized all the shares.
Like many startups, Bitmain encountered many difficulties in its early days, and many jobs had to be done by the boss. For example, in the chip design and production process in the second half of 2013, Bitmain was caught in a dilemma of insufficient funds. Jihan Wu personally raised funds and met with TSMC’s sales to persuade TSMC to accept the production needs of a start-up company. Jihan Wu also participated in the selection of the thermodynamic parameters of the heat sink in the Antminer S1.
In 2014, Jihan Wu discovered that this company was independently operated by Ketuan Zhan, which had huge problems. Forcing Jihan Wu to continue to participate in company management.
At that time, Bitmain's mining machine chips had just achieved a certain lead in the standard design process. Jihan Wu believes that the next step must be to develop full customization technology, but Ketuan Zhan plans to invest resources in the research of mobile payment chips.
Ketuan Zhan met a mysterious person from the Party Central Security Bureau who claimed to be able to manipulate the Party Central Committee’s decision-making process for the next generation of mobile payment cryptography standards, but this direction is likely to lead to the fact that Bitmain has just gained the lead in the mining machine market. Regained.
Jihan Wu said that as a graduate of the School of Economics, with a little memory of his high school stage and the knowledge reserve of a computer technology amateur, he retrieves various materials and papers every day, learns theories related to full customization, and goes to Ketuan Zhan conducts persuasion work there.
Fortunately, in the direction of full customization technology, Ketuan Zhan finally listened to Jihan Wu's opinion. Bitmain quickly integrated the technical experts from the United States and Russia introduced by Jihan Wu, which greatly improved the design level of chips and complete machines.
In 2015, Jihan Wu suggested that Ketuan Zhan consider the direction of artificial intelligence. But Ketuan Zhan is not here, he prefers the CPU direction. After staying asleep at night, coupled with in-depth analysis by the Bitmain investment team, Ketuan Zhan finally agreed with this direction. It is a pity that after the Tianshi Chen brothers made major breakthroughs in theory and practice, Bitmain officially invested in the relevant direction, and it was still a step behind.
In the two years from 2016 to 2017, Bitmain's business performance has achieved rapid development, becoming a unique super unicorn in the blockchain industry. According to Froth & Sullivan, in 2017, Bitmain Technology Holdings was the second largest fabless chip design company in China and the tenth largest fabless chip design company in the world, and the fourth largest fabless ASIC chip design company in the world, accounting for 74.5% of global cryptocurrency market share.
However, the huge crisis has long been buried in the early days of entrepreneurship.
Ketuan Zhan's decision on major directions revealed his weakness of extremely lack of business understanding. But every mistake he made was blocked by the company's core employees. His overconfidence in his management ability led to the gradual intensification of conflicts, and the management differences between the two founders became more serious.
4.The giant gets lost
The contradiction between the two broke out on December 17, 2018. Ketuan Zhan used extreme means to force the management to compromise with him by canceling the option, so as to achieve the goal of sole control of the company. Jihan Wu returned to Beijing from Hong Kong overnight and negotiated with Ketuan Zhan all night. In the end, the two resigned as CEO. Jihan Wu retired. Ketuan Zhan has the exclusive rights of chairman in exchange for the implementation of the layoff plan.
Jihan Wu's voluntary retreat has intensified Ketuan Zhan's management to do whatever he wants.
A Bitmain employee commented on Ketuan Zhan's management skills, summed up in two letters-SM.
After becoming the sole helm of the company, Ketuan Zhan quickly "rectified" the department in charge of Jihan Wu as the chairman of the board. He guided the sales of mining machines at the dinner, and pointed out that the sales performance is not due to the sales staff. Ability is strong, but the company provides opportunities. Take two sales leaders as examples, saying that if the company hadn't given the opportunity, they would still be losers. In addition, Ketuan Zhan also instructed the sales staff on how to toast and imparted the wine table culture and experience.
After the meal, Ketuan Zhan came to the conclusion that the quality of Bitmain sales staff was too poor, and Huawei’s blood needs to be injected to drive the company’s progress. Soon, the marketing and sales director from Huawei officially took over Bitmain, opening the era of brand premium for Antminer.
In order to further understand and guide the sales work, Ketuan Zhan asked to meet the customers with the sales staff. During the negotiation process, Ketuan Zhan had a heated discussion with customers on the issue of Chinese and Western medicine, and had also forced the sales staff to be able to ship 10,000 machines due to insufficient production capacity.
Although the requirements for sales personnel are strict, Ketuan Zhan has provided a lot of convenience for "Mainland Ark". In addition to selling mining machines at a more favorable price, Bitmain's mining machines are also hosted in Ming Wang at a higher price than the market price. Mine. It is reported that both Ketuan Zhan and Ming Wang are shareholders of Ark.
The new sales strategy of Huawei's executives has also brought very obvious changes to Bitmain. The self-righteous brand premium reduces the price-performance ratio of Antminer, causing competing products to eat away at Bitmain's market share. Later, Bitmain found that the strategy was wrong and started to cut prices, and found that the mining machine market was saturated and the purchase demand of miners had decreased.
More dangerous than the sales strategy is that the technical advantages of Antminer are being chased by competing products, and even overtaken. At the same time, the two mining pools under Bitmain also lost their first and second positions. The AI ​​business, which Jihan Wu placed high hopes and Ketuan Zhan personally supervised, became a laughing stock in the industry. Not only did it fail to make a profit, it almost brought down Bitmain.
Blindly introducing senior executives from Huawei to occupy important positions completely destroys the company's internal cultural foundation. The bureaucracy within Bitmain began to corrode from high-level employees to ordinary employees. Ketuan Zhan is not aware of this. He is still keen on recruiting Huawei employees, imitating Huawei's organizational structure and strategy, letting HR do sales and R&D personnel to do HR.
The organizational structure adjustment in October 2019 was the fuse for Ketuan Zhan to completely anger Bitmain management. This time, Ketuan Zhan completely marginalized Bitmain’s veteran employees, and suddenly promoted some of the “airborne soldiers” who had just joined the company to the position of person in charge, which caused the former person in charge to report to the new employees. The two managers who were originally equal The hierarchy becomes the subordinate relationship, the operation and development of different business lines are merged into a large department, the upward reporting process becomes more cumbersome, and the relationship between employees becomes delicate.
5. Headwind
On October 29, 2019, Jihan Wu urgently held a staff meeting. Prior to this, the legal representative of Beijing Bitmain has been changed to Jihan Wu, including the parent companies Hong Kong Bitmain and Cayman Bitmain. Jihan Wu stood in the lobby of Building 25, B1, announcing that Ketuan Zhan has been relieved of all duties. Any employee in the Bitmain Group shall no longer execute Ketuan Zhan’s instructions and participate in any meetings convened by Ketuan Zhan. If there is any violation, the company will demotion and expel the company based on the severity of the circumstances. If losses are caused to the company, the company will be held accountable.
Jihan Wu's speech is very long, which can be summarized as follows:
(1) Ketuan Zhan has been relieved of all duties. Also expelled from the original Huawei company HR Zhi Wang introduced by Ketuan Zhan at the end of 2018. Zhi Wang’s reputation on Bitmain was extremely poor and was ridiculed by employees as "nine thousand years" (In ancient China, the emperor was called "ten thousand years old", and the prince was "eight thousand years old." However, in the Ming Dynasty, there was an eunuch who caused harm to the country and the people. He called himself "nine thousand years old", meaning that he was only A little lower than the emperor's level).
(2) Ketuan Zhan's ability to control the company's option incentive plan has disappeared, and it is no longer possible to cancel employees' options at will.
(3) The organizational structure adjustment plan led by Ketuan Zhan was suspended.
(4) We are optimistic about the future of AI business, but the premise is that the main business can continue to make profits in order to support the company's continued investment in AI business.
In the speech, Jihan Wu also told employees the whole story of the "12.17 Incident" and bluntly said that the company is not in good condition. If no measures are taken, Bitmain is likely to go bankrupt in three quarters and he must come back to save the company.
At this time, Ketuan Zhan, who was on a business trip in Shenzhen, finally experienced the situation of Jihan Wu in the "12.17 Incident".
After the official return, Jihan Wu began to clearly point out the company's various problems in operation and management, and went deep into each business line to understand the situation. In the mining machine sales department meeting, employees spoke enthusiastically, reflecting on the difficulties and opinions encountered in the work, the marketing and sales director from Huawei asked with a surprised look, "Why didn't these issues be reported to me before?", and soon , The director was interviewed and "voluntarily resigned."
On November 2, 2019, Jihan Wu announced a salary increase for all employees. Bitmain’s last salary increase dates back to 2018. In principle, Bitmain has two salary increases every year.
On November 7, 2019, Ketuan Zhan spoke on social media for the first time, describing his hardship in starting a business, and condemning Jihan Wu for “stabbing a knife in the back”. At the end of the article, he also set himself a KPI for 2020, that is, the mining machine market share will reach 90%, and the AI ​​business will earn 1 billion.
But Ketuan Zhan's majestic plan did not make Bitmain employees feel emotional, but ridiculed him instead. Employees exposed that he insulted employees, advocated Chinese medicine, believed in Buddhism, drank in meetings, practiced Qigong...
However, there is less than half a year before the halving of Bitcoin production, and the cryptocurrency market shows no signs of recovery, which makes Bitmain management very anxious.
On January 6, 2020, Bitmain ushered in another round of layoffs, with a layoff ratio of about 1/3. This time the layoffs have caused many employees who have just increased their salaries to feel very grieved. On the one hand, they were looking forward to Jihan Wu's return. On the other hand, the compensation for this layoff was less than 18 years.
Ketuan Zhan, who has been unable to enter the Bitmain office area, once again spoke on social media and firmly opposed to layoffs. We do not need to lay off staff and we cannot commit suicide.
During the Spring Festival, Covid-19 broke out. Mainland China has begun to extend the Spring Festival holiday and advocate working from home. Under the chain reaction caused by Covid-19, most companies have chosen to cut salaries or even lay off employees. In the first two months of 2020, China's exports fell by 17%, U.S. stocks were broken four times in a row, Bitcoin plunged 40% in 24 hours on March 12, 2020, and crude oil futures fell by 300% on April 20, 2020...
Obviously, Jihan Wu can't predict, but this layoff seems to be the right decision again. In addition, from January to April 2020, Bitmain's revenue exceeded US$400 million amid the spread of Covid-19 and the collapse of the financial market.
6. Fight to the death
When Jihan Wu tried to get the company back on track, Ketuan Zhan was not helpless. On April 28, 2020, Ketuan Zhan finally rolled back the legal representative of Beijing Bitmain to before October 28, 2019 by repeatedly submitting administrative reconsiderations, and restored his status as a legal representative.
On the morning of May 8, 2020, a piece of news about Bitmain quickly appeared on the real-time hot search rankings, and even dominated the headlines of the day. At window 52 on the second floor of the Haidian District Government Affairs Center, when Ketuan Zhan, the legal person of Beijing Bitmain Company, was receiving the business license, a group of unidentified people snatched the business license from the industrial and commercial administrative staff. A source at the scene said that the number of unidentified people in the group was about 60 people, of which Luyao Liu was directing at the scene.
This is a skillful piece of news. It first leads readers to think that Ketuan Zhan is a victim, using 60 people to grab business licenses as the focus. The masses accused Jihan Wu of lawlessness, but ignored whether the government affairs center could have 60 personnel. As for Hong Kong Bitmain to have the right to appoint a representative to obtain a business license, this is a deeper level of thinking.
The follow-up report restored the real situation at the scene. Only more than ten people were present, and both sides were equipped with security personnel. Bitmain employees also broke the news in the circle of friends, claiming that Ketuan Zhan's bodyguard had injured Bitmain's authorized person, and said in a threatening tone, "Be careful!"
However, the subsequent plot reversal did not have much effect. Jihan Wu's reputation has been greatly affected. From a bloody soldier who rescued the company in trouble to a lawless criminal, it can be said to be a world of war. do not.
Ketuan Zhan, who succeeded in the first battle, began to counterattack Bitmain continuously. On the afternoon of June 3, 2020, Ketuan Zhan led a team to pry open the back door of the Beijing Bitmain office and formally occupied the deserted Beijing headquarters.
On June 4, 2020, Ketuan Zhan called on Bitmain employees to resume work and promised to expand the company's market value to more than US$50 billion within three to five years. After that, Ketuan Zhan began to contact employees by phone, trying to acquire the options in the hands of employees at a valuation of 4 billion US dollars.
Subsequently, Ketuan Zhan recalled Huawei's executives and issued a series of personnel appointments and removals. As of June 9, 2020, Ketuan Zhan has successively eliminated CFO Luyao Liu, and Wenguang Wang, the head of the mining center. Luyao Liu is responsible for controlling Bitmain's IPO plan. He also appointed Yanwu Ma as the HR director, Gang Ren as the head of the mining center, Yonggang Sun as the head of the supply chain, Ling Gu as the financial director, and Bin Zhu as the head of the mining machine business department. Bin Zhu is the senior executive of Huawei who was interviewed and left as mentioned in the previous article. During his tenure, he reduced Antminer’s 90% market share to 50%, and received a large number of complaints from miners. Internal employees once speculated that he might be Compete against the spies sent by the company.
In addition to recalling senior executives of Huawei, Ketuan Zhan also urged employees to return to work. They can receive a bonus of 10,000 yuan when they return to work on the same day, which is only half the next day. Ketuan Zhan showed a very kind side. Every time the elevator door is opened, Ketuan Zhan's hot gaze can be met, shaking hands, taking photos, and receiving money. As there is no personnel information, Ketuan Zhan does not know whether the person receiving the money is a Bitmain employee, and these people did not resume work the next day.
The effect of gentleness was not good, Ketuan Zhan began to force employees to return to work. Seeing that there are still very few respondents, Ketuan Zhan threatened employees through SMS, phone calls, EMS, emails and other harassment, issued multiple threats such as termination of contract, suspension of payment of social insurance, suspension of wages, and even used personal information saved by employees to form a group of employees. Domicile threats, requiring employees to perform "work handover", trying to force employees to return work computers, etc.
On June 10, 2020, the media revealed that Ketuan Zhan had controlled Bitmain's Shenzhen factory and prohibited employees from delivering normal shipments to paid customers, which caused difficulties in the operation of the Bitmain mining machine department.
On June 13, 2020, Hong Kong Bitmain, the parent company of Beijing Bitmain, issued a statement accusing Ketuan Zhan of signing a "Sales Agency Agreement" with the Ark Data Technology Co., Ltd. in which it holds shares, in an attempt to embezzle Beijing Bit's assets.
On June 17, 2020, the media revealed that Ketuan Zhan started selling 14,000 T17+ series mining machines at low prices.
On June 20, 2020, Hong Kong Bitmain officially suspended the supply of chips to the Shenzhen factory.
On July 13, 2020, in the "A Letter to All My colleagues in the Shenzhen Factory" released by Bitmain in Hong Kong, more details were added on the series of Ketuan Zhan's actions in June.
The legal person Feng Zhou of the Shenzhen plant is related to Ketuan Zhan. After being relieved of Ketuan Zhan's post, Jihan Wu flew to Shenzhen to have a long talk with Feng Zhou. Jihan Wu believes that Feng Zhou is the right person to manage the factory and help the company overcome difficulties, and decides to leave Feng Zhou to continue to manage the factory.
This wrong decision staged a story of a farmer and a snake. When Ketuan Zhan began to counterattack Bitmain, Feng Zhou was also quickly instigated and began to assist Ketuan Zhan in seizing customer machines and transferring 17,000 T17 mining machines in the warehouse. Hainan Continental Ark Data Technology Co., Ltd., which is held by Ketuan Zhan, sold them at a low price.
In order to protect the interests of customers, Jihan Wu had to make a compromise and paid the payment for some goods to a bank account controlled by Ketuan Zhan in exchange for delivery. However, after the other party received a payment of 109 million, the delivery stopped. On July 8, 2020, 5600 mining machines have been overdue.
At the same time, the factory defaulted on suppliers’ accounts payable as much as 200 million yuan. Bank acceptance bills issued by the factory, exceeding 36 million yuan, will expire on July 17, and more than 34 million yuan will expire on July 23. It is understood that Ketuan Zhan, after receiving the bank's dunning call, made it clear that he would not repay the loan, which would destroy the company and the entire group's credit in financial institutions.
7、 This is not the end
So far, the power struggle between the founders of Bitmain has been more than half a year. The office building already occupied by Ketuan Zhan is still empty, and most employees choose to work from home. Some chip developers returned to the office with the acquiescence of Jihan Wu and continued to maintain research and development to reduce the impact of infighting on technological iteration and competitiveness.
This giant ship that once stood on top of the supercomputer chip is crashing into the iceberg due to the madness of the former helm. Ketuan Zhan's madness and Jihan Wu's compromise made mistakes again and again. Bitmain tried to save himself many times, but was unable to get out of the black hole.
If the time goes back to that day in 2013, would Jihan Wu and Yuesheng Ge still choose to dial Ketuan Zhan?
submitted by paulcheung1990 to Bitcoin [link] [comments]

The White Dragon : A Canadian Dragon Portfolio

Alright guys, Ive been working on this for a while and a post on here by a guy describing his portfolio here was the final kick in the ass for me to put this together. I started writing this to summarize what Im doing for my friends who are beginners, and also for me to make some sense of it for myself
Hopefully parts of it are useful to you, and also ideally you guys can point out errors or have a suggestion or two. I'm posting this here as opposed to investing or canadianinvestor (blech) because they're just gonna tell me to buy an index fund.
This first section is a preamble describing the Canadian tax situation and why Im doing things the way that I am. Feel free to skip it if you dont care about that. Also, there might be mistake regarding what the laws are here so dont take my word for it and verify it for yourself please.
So here in Canada we have two types of registered accounts (theres actually more but whatver). There is the TFSA "Tax Free Savings Account", and RRSP "Registered Retirement Savings Account"
For the sake of simplicity, from the time you turn 18 you are allowed to deposit 5k (it changes year to year based on inflation etc)in each of them. That "room" accumulates retroactively, so if you haventdone anything and are starting today and you are 30 you have around 60k you can put in each of them. The prevailing wisdom is that you should max out the TFSA first and you'll see why in a minute.

TFSA is post tax deposits, with no capital gains or other taxes applied to selling your securities, dividends or anything else. You can withdraw your gains at any time, and the amount that you withdraw is added to the "room" you have for the next year. So lets say I maxed out my TFSA contributions and I take out 20k today, on January of next year I can put back in 20k plus the 5 or whatever they allow for that year. You can see how powerful this is. Theres a few limitations on what is eligable to be held in the TFSA such as bitcoin/bitcoin ETFs, overseas stocks that arent listed on NYSE, TSX, london and a few others. You can Buy to Open and Sell to Close call and put options as well as write Covered Calls.

The RRSP is pre-tax deposits and is a tax deferred scheme. You deposit to lower your income tax burden (and hopefully drop below a bracket) but once you retire you will be taxed on anything you pull out. Withdrawing early has huge penalties and isnt recommended. You are however allowed to borrow against it for a down payment as a first time home buyer. The strategy with these is that a youngperson entering the workforce is likely to be in a fairly low tax bracket and (hopefully) earns more money as they get older and more skilled so the RRSP has more value the greater your pre-taxincome is. You can also do this Self Directed. Its not relevant to this strategy but I included it for the sake of context.
Non registered accounts ( or any other situation, such as selling commercial real estate etc) is subject to a capital gains tax. In so far as I understand it, you add all your gains and losses up at the end of the year. If its a positive number, you cut that number IN HALF and add it to your regular pre-tax income. So if I made 60k from the dayjob and 20k on my margin account that adds up to 70k that I get taxed on. if its a loss, you carry that forward into the next year. Theres no distinction between long term and short term. Also physical PMs are treated differently and I'll fill that part in later once I have the details down.
The reason why all that babble is important is that my broker Questrade, which isnt as good as IB (the only real other option up here as far as Im aware) has one amazing feature that no other broker has: "Margin Power"
If you have a TFSA and a Margin account with them, you can link them together and have your securities in the TFSA collateralise your Margin account. Essentially, when it comes to the Maintenance Excess of the Margin Account QT doesnt care if its in the TFSA *or* the Margin!
You can see how powerful this is.
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So as you can tell by the title, a lot of this is heavily inspired by Chris Cole's paper "The Allegory of the Hawk and the Serpent". You can read it here: https://www.artemiscm.com/welcome#research
Between it, his interviews and my mediocre options skills at the time my mind was blown. Unfortunately I didnt know how to do the Long Volatility part until after the crash in March but I've since then had nothing but time to scour the internet and learn as much as I could.
The way I interpret this isnt necessarily "what you should have right now", but what abstracted model they were able to backtest that gave them the best performance over the 90 years. Also, a lot of my portfolio I already had before I started trying to build this.
As such my allocations dont match the proportions he gave. Not saying my allocations are better, just showing where they are at this time.
I'm going to describe how I do Long Volatility at the end rather than the beginning since the way *I* do it wont make sense until you see the rest of the portflio.

Physical PMs 22%
I'm not sure wether he intended this to be straight up physical gold or include miners and royalty streaming companies so I will just keep this as physical.
I consider Silver to be a non-expiring call option on gold, so that can live here too. I am actually *very* overweight silver and my strategy is to convert a large portion of it to gold (mostly my bars) to gold as the ratio tightens up.
If youre into crypto, you can arguably say that has a place in this section.
If an ETF makes sense for part of your portfolio, I suggest the Sprott ones such as PHYS. Sprott is an honest business and they actually have the metal they say they have. If you have enough, you can redeem your shares from the Royal Canadian Mint. The only downside is that they dont have an options chain, so you cant sell covered calls etc. Simple enough I suppose.
One thing to bear in mind, there is a double edged sword with this class of assets. They're out of the system, theyre nobody's business but your own and theres no counter party. That unfortunately means that you cant lever against it for margin or sell covered calls etc. You can still buy puts though (more on that later)

Commodity Trend (CTA) 10%
https://youtu.be/tac8sWPZW0w
Patrick Ceresna gave a good presentation on what this strategy is. Until I watched this video I just thought it meant "buy commodities". A real CTA does this with futures also so aside from the way he showed, there are two other ETFs that are worth looking at.
COM - This is an explicit trend following ETF that follows a LONG/FLAT strategy instead of LONG/SHORT on a pile of commodity futures. So if they get a "sell" signal for oil or soybeans they sell what they have and go to cash.
COMT- Holds an assortment of different month futures in different commodities, as well as a *lot* of various related shares in producers. Its almost a one stop shop commodities portfolio. Pays a respectable dividend in December
If you want to break the "rules" of CTA, and include equities theres a few others that are also worth looking at
KOL- This is a coal ETF. The problems with it are that a lot of the holdings dont have much to do with coal. One of them is a tractor company. A lot of the companies are Chinese so theres a bit of a red flag.
Obviously Thermal Coal, the kind used for heating and powerplants isnt in vogue and wont be moving forward...but coking coal is used for steel manufacturing and that ain't going anywhere. The dividend is huge, pays out in December. A very very small position might be worth the risk.
Uranium- I'm in URA because thats the only way for me to get exposure to Kazatoprom (#1 producer), which is 20% of the holdings. The other 20% is Cameco (#2 producer)and then its random stuff.
Other than that I have shares in Denison which seems like its a good business with some interesting projects underway. I'm still studying the uranium space so I dont really have much to say about it of any value.
RSX- Russia large caps. If you dont want to pick between the myriad of undervalued, high dividend paying commodity companies that Russia has then just grab this. It only pays in December but it has a liquid options chain so you can do Covered Calls in the meantime if you want.
NTR- Nutrien, canadian company that was formed when two others merged. They are now the worlds largest potash producer. Pretty good dividend. They have some financial difficulties and the stocks been in a downtrend forever. I feel its a good candidate to watch or sell some puts on.
I'm trying to come up with a way to play agriculture since this new phase we're going to be entering is likely to cause huge food shortages.

EURN and NAT- I got in fairly early on the Tanker hype before it was even hype as a way to short oil but I got greedy and lost a lot of my gains. I pared down my position and I'm staying for the dividend.
If you get an oil sell signal, this might be a way to play that still.

Fixed Income/Bonds 10%

Now, I am not a bond expert but unless youre doing some wacky spreads with futures or whatever... I dont see much reason to buy government debt any more. If you are, youre basically betting that they take rates negative. Raoul Pal of Real Vision is pretty firm in his conviction that this will happen. I know better than to argue with him but I dont see risk/reward as being of much value.
HOWEVER, I found two interesting ETFs that seem to bring something to this portfolio
IVOL- This is run by Nancy Davis, and is comprised of TIPS bonds which are nominally inflation protected (doubt its real inflation but whatever) overlayed with some OTC options that are designed to pay off big if the Fed loses control of the long end of the yield curve, which is what might happen during a real inflation situation. Pays out a decent yield monthly
TAIL- This is a simpler portfolio of 10yr treasuries with ladder of puts on the SPX. Pays quarterly.

Equities 58% (shared with options/volatility below)
This is where it gets interesting, obviously most of this is in mining shares but before I get to those I found some interesting stuff that I'm intending to build up as I pare down my miners when the time comes to start doing that.
VIRT- I cant remember where I saw this, but people were talking about this as a volatility play. Its not perfect, but look at the chart compared to SPY. Its a HFT/market making operation, the wackier things get the more pennies they can scalp. A 4% dividend isnt shabby either.
FUND- This is an interesting closed end fund run by Whitney George, one of the principals at Sprott. He took it with him when he joined the company. Ive read his reports and interviews and I really like his approach to value and investing. He's kind of like if Warren Buffett was a gold bug. Theres 120 holdings in there, mostly small caps and very diverse...chicken factories, ball bearings all kinds of boring ass shit that nobody knows exists. Whats crucial is that most of it "needs to exist". Between him, his family and other people at Sprott they control 40% or so of the shares, so they definitely have skin in the game. Generous dividend.
ZIG- This is a "deep value" strategy fund, run by Tobias Carlisle. He has a fairly simple valuation formula called the Acquirer's Multiple that when he backtested it, is supposed to perform very well. He did an interview with Chris Cole on real Vision where he discusses how Value and Deep Value havent done well recently, but over the last 100 years have proven to be very viable strategies. If we feel that theres a new cycle brewing, then this strategy may work again moving forward.

I want to pause and point out something here, Chris Cole, Nassim Taleb and the guys at Mutiny Fund spend a lot of effort explaining that building a portfolio is a lot like putting together a good basketall team. They need to work together, and pick up each others slack
A lot of the ETFs I'm listing here are in many ways portfolios in and of themselves and are *actively managed*. I specifically chose them because they follow a methodology that I respect but I can't do myself because I dont have the skill, temperament or access to.
The next one is a hidden gem and ties into this. I'm not sure how much more upside there is in this one but man was I surprised.
SII- Sprott Inc. I *never* see people listing this stock in their PMs portfolios. A newsletter I'm subscribed to described this stock as the safest way to play junior miners. Their industry presence, intellectual capital and connections means that they get *the best* private placement deals in the best opportunities. I cant compete with a staff like theirs and I'm not going to try. I bought this at 2.50, and I liked the dividend. Since then they did a reverse split to get on the NYSE and like the day after the stock soared.
When it comes to mining ETFS I like GOAU and SILJ the best. None of their major holdings are dead weight companies that are only there because of market cap. I dont want Barrick in my portfolio etc.
SGDJ is a neat version of GDXJ.
Aside from that my individual miners/royalty companies are (no particular order)
MMX
SAND
PAAS
PGM
AUM
AG
MUX
RIO- Rio2 on the tsx, not rio tinto
KTN
KL
Options/Volatility: varies
So this is where we get to the part about options, Volatility and how I do it. I started out in the options space with The Wheel strategy and the Tastytrade approach of selling premium. The spreads and puts I sell, are on shares listed above, in fact some of those I dont hold anymore.
Theres tons of stuff on this in thetagang and options so I wont go into a whole bunch (and you shouldnt be learning the mechanics from me anyway) but theres one thing I want to go over before it gets wild.
If I sell a Cash Secured Put, from a risk management perspective its identical to just buying 100 shares of the underlying security. You are equally "Short Vol" as well, it just that with options
its a little more explicit with the Greeks and everything. But if I use my margin that I was talking about earlier, then I can still collect the premium and the interest doesnt kick in unless Im actually assigned the shares.
But if I sell too many puts on KL or AG, and something happens where the miners get cut down (and lets be real, they all move together) my margin goes down and then I get assigned and kaboom...my account gets blown up
So what I need to do, is balance out the huge Short Vol situation in my portfolio, be net Long Vol and directly hedge my positions. Since the overwhelming majority of my equities are all tied to bullion this is actually a very easy thing to do.

Backspreads
https://youtu.be/pvX5_rkm5x0
https://youtu.be/-jTvWOGVsK8
https://youtu.be/muYjjm934iY

So I set this up so the vast majority of my margin is tied up in these 1-2 or even 1-3 ratio put spreads that *I actually put on for a small credit*, and roll them every once in a while. I run them on SLV, and GDX.
I keep enough room on my margin so I can withstand a 10% drawdown before it sets off the long end of the spreads and then I can ride it out until it turns around and we keep the PM bull market going.
Theres another cool spread I've been using, which is a modified Jade Lizard; if already hold shares, I'll sell a put, sell a covered call, and use some of the premium to buy a longer dated call. Ive been running this on AG mostly.
I have a few more spreads I can show you but Im tired now so it'll have to wait for later.
As I said multiple times, I do intend to trim these miners later but now isnt the time for that IMO. I'm also monitoring this almost full time since I have an injury and have nothing better to do until I heal :p
submitted by ChudBuntsman to pmstocks [link] [comments]

Continuous Proof of Bitcoin Burn: trust minimized sidechains and bitcoin-pegs w/o oracles/federations today

Original design presented for discussion and criticism
originally posted here: https://bitcointalk.org/index.php?topic=5212814.0
TLDR: Proposing the following that's possible today to use for any existing or new altcoins:
_______________________________________

Disclaimer:

This is not an altcoin thread. I'm not making anything. The design discussed options for existing altcoins and new ways to built on top of Bitcoin inheriting some of its security guarantees. 2 parts: First, the design allows any altcoins to switch to securing themselves via Bitcoin instead of their own PoW or PoS with significant benefits to both altcoins and Bitcoin (and environment lol). Second, I explain how to create Bitcoin-pegged assets to turn altcoins into a Bitcoin sidechain equivalent. Let me know if this is of interest or if it exists, feel free to use or do anything with this, hopefully I can help.

Issue:

Solution to first few points:

PoW altcoin switching to CPoBB would trade:

PoS altcoin switching to CPoBB would trade:

We already have a permissionless, compact, public, high-cost-backed finality base layer to build on top - Bitcoin! It will handle sorting, data availability, finality, and has something of value to use instead of capital or energy that's outside the sidechain - the Bitcoin coins. The sunk costs of PoW can be simulated by burning Bitcoin, similar to concept known as Proof of Burn where Bitcoin are sent to unspendable address. Unlike ICO's, no contributors can take out the Bitcoins and get rewards for free. Unlike PoS, entry into supply lies outside the alt-chain and thus doesn't depend on permission of alt-chain stake-coin holders. It's hard to find a more bandwidth or state size protective blockchain to use other than Bitcoin as well so altcoins can be Bitcoin-aware at little marginal difficulty - 10 years of history fully validates in under a day.

What are typical issues with Proof of Burn?

Solution:

This should be required for any design for it to stay permissionless. Optional is constant fixed emission rate for altcoins not trying to be money if goal is to maximize accessibility. Since it's not depending on brand new PoW for security, they don't have to depend on massive early rewards giving disproportionate fraction of supply at earliest stage either. If 10 coins are created every block, after n blocks, at rate of 10 coins per block, % emission per block is = (100/n)%, an always decreasing number. Sidechain coin doesn't need to be scarce money, and could maximize distribution of control by encouraging further distribution. If no burners exist in a block, altcoin block reward is simply added to next block reward making emission predictable.
Sidechain block content should be committed in burn transaction via a root of the merkle tree of its transactions. Sidechain state will depend on Bitcoin for finality and block time between commitment broadcasts. However, the throughput can be of any size per block, unlimited number of such sidechains can exist with their own rules and validation costs are handled only by nodes that choose to be aware of a specific sidechain by running its consensus compatible software.
Important design decision is how can protocol determine the "true" side-block and how to distribute incentives. Simplest solution is to always :
  1. Agree on the valid sidechain block matching the merkle root commitment for the largest amount of Bitcoin burnt, earliest inclusion in the bitcoin block as the tie breaker
  2. Distribute block reward during the next side-block proportional to current amounts burnt
  3. Bitcoin fee market serves as deterrent for spam submissions of blocks to validate
e.g.
sidechain block reward is set always at 10 altcoins per block Bitcoin block contains the following content embedded and part of its transactions: tx11: burns 0.01 BTC & OP_RETURN tx56: burns 0.05 BTC & OP_RETURN ... <...root of valid sidechain block version 1> ... tx78: burns 1 BTC & OP_RETURN ... <...root of valid sidechain block version 2> ... tx124: burns 0.2 BTC & OP_RETURN ... <...root of INVALID sidechain block version 3> ...
Validity is deterministic by rules in client side node software (e.g. signature validation) so all nodes can independently see version 3 is invalid and thus burner of tx124 gets no reward allocated. The largest valid burn is from tx78 so version 2 is used for the blockchain in sidechain. The total valid burn is 1.06 BTC, so 10 altcoins to be distributed in the next block are 0.094, 0.472, 9.434 to owners of first 3 transactions, respectively.
Censorship attack would require continuous costs in Bitcoin on the attacker and can be waited out. Censorship would also be limited to on-sidechain specific transactions as emission distribution to others CPoB contributors wouldn't be affected as blocks without matching coin distributions on sidechain wouldn't be valid. Additionally, sidechains can allow a limited number of sidechain transactions to happen via embedding transaction data inside Bitcoin transactions (e.g. OP_RETURN) as a way to use Bitcoin for data availability layer in case sidechain transactions are being censored on their network. Since all sidechain nodes are Bitcoin aware, it would be trivial to include.
Sidechain blocks cannot be reverted without reverting Bitcoin blocks or hard forking the protocol used to derive sidechain state. If protocol is forked, the value of sidechain coins on each fork of sidechain state becomes important but Proof of Burn natively guarantees trust minimized and permissionless distribution of the coins, something inferior methods like obscure early distributions, trusted pre-mines, and trusted ICO's cannot do.
More bitcoins being burnt is parallel to more hash rate entering PoW, with each miner or burner getting smaller amount of altcoins on average making it unprofitable to burn or mine and forcing some to exit. At equilibrium costs of equipment and electricity approaches value gained from selling coins just as at equilibrium costs of burnt coins approaches value of altcoins rewarded. In both cases it incentivizes further distribution to markets to cover the costs making burners and miners dependent on users via markets. In both cases it's also possible to mine without permission and mine at a loss temporarily to gain some altcoins without permission if you want to.
Altcoins benefit by inheriting many of bitcoin security guarantees, bitcoin parties have to do nothing if they don't want to, but will see their coins grow more scarce through burning. The contributions to the fee market will contribute to higher Bitcoin miner rewards even after block reward is gone.

Sidechain Bitcoin-pegs:

What is the ideal goal of the sidechains? Ideally to have a token that has the bi-directionally pegged value to Bitcoin and tradeable ~1:1 for Bitcoin that gives Bitcoin users an option of a different rule set without compromising the base chain nor forcing base chain participants to do anything different.
Issues with value pegs:
Let's get rid of the idea of needing Bitcoin collateral to back pegged coins 1:1 as that's never secure, independent, or scalable at same security level. As drive-chain design suggested the peg doesn't have to be fast, can take months, just needs to exist so other methods can be used to speed it up like atomic swaps by volunteers taking on the risk for a fee.
In continuous proof of burn we have another source of Bitcoins, the burnt Bitcoins. Sidechain protocols can require some minor percentage (e.g. 20%) of burner tx value coins via another output to go to reimburse those withdrawing side-Bitcoins to Bitcoin chain until they are filled. If withdrawal queue is empty that % is burnt instead. Selection of who receives reimbursement is deterministic per burner. Percentage must be kept small as it's assumed it's possible to get up to that much discount on altcoin emissions.
Let's use a really simple example case where each burner pays 20% of burner tx amount to cover withdrawal in exact order requested with no attempts at other matching, capped at half amount requested per payout. Example:
withdrawal queue: request1: 0.2 sBTC request2: 1.0 sBTC request3: 0.5 sBTC
same block burners: tx burns 0.8 BTC, 0.1 BTC is sent to request1, 0.1 BTC is sent to request2 tx burns 0.4 BTC, 0.1 BTC is sent to request1 tx burns 0.08 BTC, 0.02 BTC is sent to request 1 tx burns 1.2 BTC, 0.1 BTC is sent to request1, 0.2 BTC is sent to request2
withdrawal queue: request1: filled with 0.32 BTC instead of 0.2 sBTC, removed from queue request2: partially-filled with 0.3 BTC out of 1.0 sBTC, 0.7 BTC remaining for next queue request3: still 0.5 sBTC
Withdrawal requests can either take long time to get to filled due to cap per burn or get overfilled as seen in "request1" example, hard to predict. Overfilling is not a big deal since we're not dealing with a finite source. The risk a user that chooses to use the sidechain pegged coin takes on is based on the rate at which they can expect to get paid based on value of altcoin emission that generally matches Bitcoin burn rate. If sidechain loses interest and nobody is burning enough bitcoin, the funds might be lost so the scale of risk has to be measured. If Bitcoins burnt per day is 0.5 BTC total and you hope to deposit or withdraw 5000 BTC, it might take a long time or never happen to withdraw it. But for amounts comparable or under 0.5 BTC/day average burnt with 5 side-BTC on sidechain outstanding total the risks are more reasonable.
Deposits onto the sidechain are far easier - by burning Bitcoin in a separate known unspendable deposit address for that sidechain and sidechain protocol issuing matching amount of side-Bitcoin. Withdrawn bitcoins are treated as burnt bitcoins for sake of dividing block rewards as long as they followed the deterministic rules for their burn to count as valid and percentage used for withdrawals is kept small to avoid approaching free altcoin emissions by paying for your own withdrawals and ensuring significant unforgeable losses.
Ideally more matching is used so large withdrawals don't completely block everyone else and small withdrawals don't completely block large withdrawals. Better methods should deterministically randomize assigned withdrawals via previous Bitcoin block hash, prioritized by request time (earliest arrivals should get paid earlier), and amount of peg outstanding vs burn amount (smaller burns should prioritize smaller outstanding balances). Fee market on bitcoin discourages doing withdrawals of too small amounts and encourages batching by burners.
The second method is less reliable but already known that uses over-collateralized loans that create a oracle-pegged token that can be pegged to the bitcoin value. It was already used by its inventors in 2014 on bitshares (e.g. bitCNY, bitUSD, bitBTC) and similarly by MakerDAO in 2018. The upside is a trust minimized distribution of CPoB coins can be used to distribute trust over selection of price feed oracles far better than pre-mined single trusted party based distributions used in MakerDAO (100% pre-mined) and to a bit lesser degree on bitshares (~50% mined, ~50% premined before dpos). The downside is 2 fold: first the supply of BTC pegged coin would depend on people opening an equivalent of a leveraged long position on the altcoin/BTC pair, which is hard to convince people to do as seen by very poor liquidity of bitBTC in the past. Second downside is oracles can still collude to mess with price feeds, and while their influence might be limited via capped price changes per unit time and might compromise their continuous revenue stream from fees, the leverage benefits might outweight the losses. The use of continous proof of burn to peg withdrawals is superior method as it is simply a minor byproduct of "mining" for altcoins and doesn't depend on traders positions. At the moment I'm not aware of any market-pegged coins on trust minimized platforms or implemented in trust minimized way (e.g. premined mkr on premined eth = 2 sets of trusted third parties each of which with full control over the design).
_______________________________________

Brief issues with current altchains options:

  1. PoW: New PoW altcoins suffer high risk of attacks. Additional PoW chains require high energy and capital costs to create permissionless entry and trust minimized miners that are forever dependent on markets to hold them accountable. Using same algorithm or equipment as another chain or merge-mining puts you at a disadvantage by allowing some miners to attack and still cover sunk costs on another chain. Using a different algorithm/equipment requires building up the value of sunk costs to protect against attacks with significant energy and capital costs. Drive-chains also require miners to allow it by having to be sidechain aware and thus incur additional costs on them and validating nodes if the sidechain rewards are of value and importance.
  2. PoS: PoS is permissioned (requires permission from internal party to use network or contribute to consensus on permitted scale), allows perpetual control without accountability to others, and incentivizes centralization of control over time. Without continuous source of sunk costs there's no reason to give up control. By having consensus entirely dependent on internal state network, unlike PoW but like private databases, cannot guarantee independent permissionless entry and thus cannot claim trust minimization. Has no built in distribution methods so depends on safe start (snapshot of trust minimized distributions or PoW period) followed by losing that on switch to PoS or starting off dependent on a single trusted party such as case in all significant pre-mines and ICO's.
  3. Proof of Capacity: PoC is just shifting costs further to capital over PoW to achieve same guarantees.
  4. PoW/PoS: Still require additional PoW chain creation. Strong dependence on PoS can render PoW irrelevant and thus inherit the worst properties of both protocols.
  5. Tokens inherit all trust dependencies of parent blockchain and thus depend on the above.
  6. Embedded consensus (counterparty, veriblock?, omni): Lacks mechanism for distribution, requires all tx data to be inside scarce Bitcoin block space so high cost to users instead of compensated miners. If you want to build a very expressive scripting language, might very hard & expensive to fit into Bitcoin tx vs CPoBB external content of unlimited size in a committed hash. Same as CPoBB is Bitcoin-aware so can respond to Bitcoin being sent but without source of Bitcoins like burning no way to do any trust minimized Bitcoin-pegs it can control fully.

Few extra notes from my talks with people:

Main questions to you:

open to working on this further with others
submitted by awasi868 to CryptoTechnology [link] [comments]

Long Way Back (Part 2)

Part I
After these events I withdrew into myself. I used to spend most of the free time at home alone. Sometimes I spent the whole weekend lying in bed or playing video games.
In a couple of months I started having troubles falling asleep. Often I couldn’t resist the temptation to “dive” and replace the depressing reality with happy moments of distant past. After waking up I used to lie in the bed fighting a pulsing headache till dawn.
Insomnia made me sluggish and apathetic. But still I would retreat into memories every evening like an addict looking for a dose.
∗ ∗ ∗
I am fourteen years old. School is on summer break. Weather is boiling-hot, so my friends and I are hiding from the sun in a park.
We put our pocket money together to buy a large coke and some ice cream. I am laying on the grass in the shadow of a large willow listening to my friend’s jokes and eating lemon ice pop. If there’s a single word to describe my mind at this moment, it should be serenity.
∗ ∗ ∗
I am twelve. My father and I hike in the magnificent Crimean mountains. When we come home, my parents will finally break up, and mom will leave us. But it will be later. In the meantime I have nothing to worry about. Right now the only thing that attracts my attention is the pure beauty of nature.
∗ ∗ ∗
I am ten. I participate in the national math contest and take the second place to everyone’s surprise. When they call me to give a reward, I glance at my school teacher in the audience and see tears in her eyes.
∗ ∗ ∗
I am fifteen.
I sit at the porch of our cabin waiting for my friends. Disco starts in a couple of minutes, and it’s literally common knowledge that a party is the most important thing in the social life of teenagers in summer camp. So it’s only natural that I’m angry with my friend for keeping me waiting.
At long last they come out. I see Max and my heart fills with warmth and sorrow at the same time. Usually, I try to avoid memories of him, but this is a special occasion.
Max wears ripped jeans, Nirvana t-shirt and a cap. His look makes me amused: from an adult perspective he looks kinda funny, but such an image is taken much more seriously when you’re fifteen.
My parents used to send me to summer camp each year when I was at school, but this time is special. During this trip I will fall in love with a girl (even though our childish “relationship” will only hold for a couple of weeks) and kiss her for the first time in my life. After it happens, I’ll be so excited that we’ll be discussing this experience with Max for half the night.
When I think about it, it feels nostalgic, but I dismiss this feeling. How can I be so sentimental, if it hasn’t happened yet?
Our company finally arrives at a basketball court that also serves as a dance floor. Upbeat music is playing loudly, and most of the people have already gathered. Max nudges me and points at the girl I’m to experience an awkward excitement of the first kiss with. I look at the direction he’s pointing to, and freeze, struck dumb.
Cause I see Nika standing at the edge of the court.
When I met her at the university, she looked totally different, but still I recognize her at first sight. She has long hair with a few strands defiantly dyed pink. She wears a sundress (and it’s actually the first time I see her wearing anything other than a baggy hoodie and jeans).
As if on purpose, at the very same moment DJ announces a slow dance and turns on a soft melody. Without thinking about possible consequences, I approach Nika and ask her to dance. There’s a glimpse of surprise in her eyes, but she still accepts my invitation.
I put my hands on her waist. Suddenly, she moves closer to me and places her arms around my neck. We start dancing, and I belatedly introduce myself. She tells me her name too. I try to start a conversation and subconsciously fear that she won’t talk to me as it was the last time we met in future.
But the future is not here yet. There has been no quarrel between us yet. That’s why Nika answers my dumb questions, laughs at my jokes and sounds exactly the same I remember.
The song ends, and our dance does as well. To me this awkward teenage ritual seems to be the most romantic thing in the world at this moment.
I ask Nika to leave the party and sneak to the beach. Max gives me the thumbs up behind her back.
While we walk together, Nika tells me all kinds of things. She tells me about her favorite indie sci-fi movies. Says that she studies programming as a hobby. Then she says that she’ll soon begin preparing for the graduation exams, since she wants to go to a good university. I eagerly listen to her, enjoying every minute I spend with the girl I missed so much.
We reach the sandy bank of the river and sit on the concrete parapet. Nika notes that we mustn’t get close to the water without supervision, but I see cheerful sparkles in her eyes. I joke that if counselors catch us, at least we will serve a sentence together.
We sit silently and watch the river flow for a couple of minutes. At last Nika starts to speak:
“Do you believe in the butterfly effect? The theory that tiny events in the past…”
“...can have huge consequences,“ I finish the sentence. “You do something that you don’t consider to be important, but by chance it happens to affect the future a lot. Like a chain reaction. Yeah, I believe. Probably. Why do you ask?”
“Well, we met randomly just a couple of hours ago. For instance, imagine that I dressed differently today, and you didn’t notice me because of it, or something like that,” she suggests. “And we’d never meet as a result. Or we’d meet much later. In university, for example. And we’d never know that we even went to the same summer camp…” Nika pauses for a moment, and a vague paranoid thought arises in my mind all of a sudden. “You know, I like you a lot,” she unexpectedly finishes the monologue.
It looks like a coincidence, but ever since I got my power, I don’t believe in coincidences. I hesitate for a couple of seconds, but finally say: “I don’t mean to be rude but… What’s the date today?”
Nika seems surprised by this question. After a short silence, she says hesitantly: “The fifteenth of July?”
“Close enough,” I answer. The camp started only yesterday, so it’s virtually impossible to be so wrong. “It’s the seventh. And what’s the last movie you saw in the cinema?”
Nika fades. Her shoulders sag, and after a short pause she asks: “Which year are you from?”“October, 2019” I answer honestly.
“Huh,” she smiles miserably. “Me too. Maybe, that’s the only way we can be in the same past together ‒ if we go to sleep at the same time?”
She pauses again, and I finally decide to ask a question I have in mind for the last couple of minutes:
“Why did we stop talking? Why did you start ignoring me?”
She chuckles and starts to speak:
“Didn’t you get it? It started that evening at Ivan’s birthday party. We started arguing. You were stubborn as usual, so I said some stuff I immediately regretted. I decided to go back and fix it. But when I came back to the past, it appeared that you suddenly changed the subject before I was able to do anything. You must understand, my ability had never failed me before. I thought that events were invariant, unless I changed them myself. So when it happened, I became frightened and woke up,” Nika stops to catch her breath, but I stay silent digesting this information, so she continues: “At first I blamed the butterfly effect. I thought that I changed something myself, so I tried to get back again in order to amend what happened, but for some reason my powers didn’t work on you no matter how much I tried. Trust me, it was scary. I acted on a whim and pushed you away. And I told myself to forget you,” I see tears in her eyes. “I tried to replace you with other people. It didn’t work. On the contrary, I started thinking about you even more. My thoughts returned to the fact that you were beyond my power again and again, and it annoyed me. Also… I missed you a lot”.
I take her hand in mine without thinking. I know that I’ll never be able to change this moment, but it’s worth the risk.
∗ ∗ ∗
Nika tells me that she discovered her abilities when she fell asleep during the lecture. For a long time she thought that it was just a deja vu. I joke that some lecturers made me fall asleep without any time travel involved.
∗ ∗ ∗
She calls it “to wake up from our reality to another”. I call it “diving”. Different names, same meaning.
∗ ∗ ∗
I tell her that I once returned to 2011 to buy bitcoin, but when I “woke up” it appeared that cryptocurrency never became popular in the first place. I tell her that I tried doing it several times and gave up in the end. We discuss chaos theory for some time, and Nika suggests that it’s possible that bitcoin only became expensive by an incredible coincidence that accidentally occurred in our time branch.
∗ ∗ ∗
She says that she tried to make money from betting, but it turned out that results of most games are completely random. We laugh at it and agree that the universe has a sense of humor.
∗ ∗ ∗
Sun sets and it becomes colder. I give Nika my shirt to warm her up a bit.
∗ ∗ ∗
I tell her about the rules of “diving” that I derived. When I regret about “past me” being unable to remember the “dive”, Nika tells me a simple solution that makes me feel stupid. Turns out that she started the diary on the very same day when she discovered her ability to travel through time. Whenever she comes back to the past, she simply puts instructions for herself in the diary.
It reminds me of something. I realize that in despair Max tried to do the exact same thing ‒ that night in the abandoned building he tried to leave a diary.
I ask Nika if she's ever met other time travelers. After a negative response, I tell her the shocking story of my friend’s death. I also mention the creepy childhood memory.
We ask ourselves: how many time travelers are there around us? How many of them do we meet each day without even knowing?
∗ ∗ ∗
Sudden gust of fresh wind rustles reeds with a soft whispering. Nika moves closer to me. I hug her, and my heart starts beating faster.
∗ ∗ ∗
Nika tells me how she once tried to “dive” while already being in the past. I admire her courage ‒ I never attempted such a thing, and to be honest after traveling to the distant childhood I wouldn’t have tried. However, her experience is not really inspiring: she was able to go to the second level only for a second. When she “woke up” in reality, she felt so sick that she had to skip work next day.
∗ ∗ ∗
I hear voices behind our backs. A couple of kids come to the river bank and stop sixty feet behind. The girl giggles and tells the boy that this place seems to be already taken. We quietly wait until they leave.
I turn to Nika, and she kisses me, probably tired of waiting for me to do the next step.
Strictly speaking, that should be my first kiss. That thought makes me laugh.
∗ ∗ ∗
I tell Nika that we must stay together. It’s fate that we both happen to have these supernatural powers. She seriously answers that I must swear to never use my abilities on her. I agree to that.
We hear DJ announcing the last track of the party. He turns on a sweet indie song. Nika says that it’s very romantic, and we kiss till the melody reaches its end.
“Would you like to walk me home?” she asks playfully. Of course, I say yes.
Near the cabin she says that we need to say goodbye for now. We agree that we’ll both wake up next morning (which happens to be seven years later), and if we are actually a perfect match to each other, then we’ll probably wake up together.
After that I see that her eyes close for a moment, and when she regains consciousness, her face looks surprised for a couple of seconds. Then Nika giggles, kisses me goodbye and runs into the cabin. I realize that she “woke up”.
Of course, I’ll join her in the future. Eventually. No, I do not plan on changing anything or breaking my promises. However, after all I’ve been through, I won’t be satisfied by faint new memories of the changed reality in the morning. I don’t want to lose her anymore so I intend to truly live through everything that is destined for us.
I have a long way back to go.
∗ ∗ ∗
When I finally “wake up”, my head bursts with pain. It hurts so much that I cannot make a sound. There are fireworks in my eyes, so I cannot really see my surroundings. An attempt to move leads to an even greater pain and nausea that I hardly hold back. Suddenly, a cool hand touches me. The last thought before I lose consciousness is that it must be Nika.
∗ ∗ ∗
When I wake up again, I feel a bit better. Migraine is still pulsing in my head, but it’s bearable. I can feel sunlight through closed eyelids, so I realize that it’s morning already. It’s time to get up, but I continue to lie with my eyes closed and think about the past years.
∗ ∗ ∗
I recall how we started dating after that night at the camp. We spent the whole summer together walking in parks, cycling around the city and watching movies at her parents’ home.
I recall that in a couple of months we had our first sex. It wasn’t something to brag about: it was actually pretty awkward. Yet it moved our relationship to a whole next level.
I recall how Nika got into an accident after the prom. She broke her ankles in several places, and it left large terrible scars. That’s when she stopped wearing skirts or dresses.
I recall that we enrolled in the same university, but this time we also went to the same program.
I recall that after the first year in university, we got the identical tattoos on our shins. It covered the scars she was ashamed of.
I recall that one year later she discovered that she can time travel. She told me about it at once, and we experimented with her ability a lot together.
I recall that in a couple of years we finally started living together, and a year and a half ago I proposed to her. The wedding took place on June 22, and Max was my best man.
I recall that I woke up the next morning and saw Max sleeping on an armchair in our living room. He was drunk as hell, but most importantly he was alive.
I recall that we went to Spain for our honeymoon. On the last day of this vacation I looked at Nika’s happy face for the last time in the past. Then I finally “woke up”.
∗ ∗ ∗
I hear someone calling my name. I open my eyes to see Nika lying next to me in the bed.
But at that very second when the light hits my eyes, agony comes back. Just before I start screaming, I realize that I can only see with my left eye.
Nika rushes to me. She’s clearly scared. I try to get up, but I can’t. It feels like every bone in my body is broken. Fighting the excruciating pain, I try to tell Nika what happened, but for some reason my words get stuck somewhere between my brain and my mouth. At last, Nika pulls out her phone and calls an ambulance.
∗ ∗ ∗
When they took me to the hospital, I was already feeling a bit better. Doctors examined me for days. They did a bunch of CT scans and gave me several mutually exclusive diagnoses. In the end they agreed that I had an atypical ischemic stroke. At least it explained some part of my symptoms like partial loss of vision and aphasia.
I didn’t insist on specifying the diagnosis. It was crystal clear to me that modern science doesn't have the slightest idea about what happens in the human brain when its synapses try to adjust for several years of contradicting memories.
Speech disorder and loss of coordination passed quickly. In a couple of weeks migraines stopped as well. However, I lost sight in my right eye permanently. And that wasn’t the worst of it.
First of all, when I was finally discharged from the intensive care, Nika and I had a long unpleasant conversation. She cried at me, called me an irresponsible idiot and liar. I had nothing to say to defend myself. I was guilty in every way.
In the end she calmed down and even seemed to forgive me. But when I was discharged from the hospital, I discovered another troubling matter.
I was unable to “dive”.
We spent a lot of time working on it. Nika tried to help me, believing that my skills got rusty because of many years of break. But it was to no avail. I lost my power completely.
It would be difficult to understand me for someone who had never wielded such a power. Imagine that one morning you try to get up from your bed and suddenly realize that you forgot how to walk. You put your feet on the floor, but you fall whenever you try to stand up. That’s exactly how I felt.
I also remembered how a long time ago Uncle Misha said: “When you are fixed, you’ll understand”. Of course, I couldn’t know for sure, but I assumed that each person has some kind of the internal limit of energy. Each time that we traveled back and forth, we spent some of it. I didn’t know whether this energy source used to replenish after coming back or not, but it didn’t matter anymore. My last “dive” exhausted it completely, because I spent too much time in the past. I became fixed.
Nika shared my pain and sincerely sympathized, but it didn’t help. She was a successful software engineer with a perfect life (how could it be not perfect, if she was able to magically fix any problems?). I was disabled and suffering from constant migraines and deep depression. Each day we became more distant, and I was the only one guilty.
There was another unpleasant surprise. Now, when I was fixed, my memory started to work in a funny way. Each time when anybody changed the past, I continued to remember the old version of events instead of a new one.
This strange effect manifested itself for the first time when Nika called me from the office and asked me to look for her keys. I found them and told her so. The next thing I remember, I was sitting at the computer and there were no keys on the table.
It felt rather disturbing, and my first thought was that I have some kind of memory lapses because of the stroke. Actually, the doctor warned me that such things could happen. But when Nika came home from work, she was shocked by this story even more than I. She told me that she actually called me today, because she thought that she lost her keys. When I said that I found them, she “dived” into the morning and simply took them. I could not possibly remember that, because there was no call in the new version of reality.
At this point the gap between us grew even larger, and we started having trust issues.
In addition, I began to notice other changes that clearly proved that there are many time travelers around, and they are constantly editing the past.
One fine morning Nika and I were discussing our plans, and she mentioned that we were planning to go to the Twenty One Pilots show. The problem was that I’d never heard of these guys before. Manic Subsidal’s concert, that we had actually planned to visit, did not exist. In fact, there was no such band at all.
Another day I opened to play Heroes of Might and Magic only to realize that my favorite Forge faction was nowhere to be found. Google told me that it was designed but never added to the game because of the negative fandom reaction.
Several times I really got confused in my memories. Once I got off at the wrong stop when I was visiting my father. I mentioned a childhood friend who never existed to my mother (it scared her a lot). One time I even forgot the stove on (and I was pretty sure that I turned it off) ‒ Nika started scolding me, but then she saw a bewildered look on my face and simply started crying.
At this very moment I suddenly understood that most likely Uncle Misha wasn’t really schizophrenic.
∗ ∗ ∗
The most difficult thing is to see pity and sympathy surrounding me. They think that I suffered a terrible trauma and now I have difficulties distinguishing reality from fantasy. Each time I want to scream that it’s them who do not see the real world. It’s their lives that are getting overwritten every day by a small group of people who have real power.
It feels like a personal hell, designed specifically for me. Only I know what actually happens, but I cannot explain it to anyone.
Each night I go to sleep thinking that I want to wake up from this reality.
But I can’t.
submitted by hokmund to nosleep [link] [comments]

Review and Prospect of Crypto Economy-Development and Evolution of Consensus Mechanism (2)

Review and Prospect of Crypto Economy-Development and Evolution of Consensus Mechanism (2)

https://preview.redd.it/a51zsja94db51.png?width=567&format=png&auto=webp&s=99e8080c9e9b1fb5e11cbd70f915f9cb37188f81
Foreword
The consensus mechanism is one of the important elements of the blockchain and the core rule of the normal operation of the distributed ledger. It is mainly used to solve the trust problem between people and determine who is responsible for generating new blocks and maintaining the effective unification of the system in the blockchain system. Thus, it has become an everlasting research hot topic in blockchain.
This article starts with the concept and role of the consensus mechanism. First, it enables the reader to have a preliminary understanding of the consensus mechanism as a whole; then starting with the two armies and the Byzantine general problem, the evolution of the consensus mechanism is introduced in the order of the time when the consensus mechanism is proposed; Then, it briefly introduces the current mainstream consensus mechanism from three aspects of concept, working principle and representative project, and compares the advantages and disadvantages of the mainstream consensus mechanism; finally, it gives suggestions on how to choose a consensus mechanism for blockchain projects and pointed out the possibility of the future development of the consensus mechanism.
Contents
First, concept and function of the consensus mechanism
1.1 Concept: The core rules for the normal operation of distributed ledgers
1.2 Role: Solve the trust problem and decide the generation and maintenance of new blocks
1.2.1 Used to solve the trust problem between people
1.2.2 Used to decide who is responsible for generating new blocks and maintaining effective unity in the blockchain system
1.3 Mainstream model of consensus algorithm
Second, the origin of the consensus mechanism
2.1 The two armies and the Byzantine generals
2.1.1 The two armies problem
2.1.2 The Byzantine generals problem
2.2 Development history of consensus mechanism
2.2.1 Classification of consensus mechanism
2.2.2 Development frontier of consensus mechanism
Third, Common Consensus System
Fourth, Selection of consensus mechanism and summary of current situation
4.1 How to choose a consensus mechanism that suits you
4.1.1 Determine whether the final result is important
4.1.2 Determine how fast the application process needs to be
4.1.2 Determining the degree to which the application requires for decentralization
4.1.3 Determine whether the system can be terminated
4.1.4 Select a suitable consensus algorithm after weighing the advantages and disadvantages
4.2 Future development of consensus mechanism
Last lecture review: Chapter 1 Concept and Function of Consensus Mechanism plus Chapter 2 Origin of Consensus Mechanism
Chapter 3 Common Consensus Mechanisms (Part 1)
Figure 6 Summary of relatively mainstream consensus mechanisms
📷
https://preview.redd.it/9r7q3xra4db51.png?width=567&format=png&auto=webp&s=bae5554a596feaac948fae22dffafee98c4318a7
Source: Hasib Anwar, "Consensus Algorithms: The Root Of The Blockchain Technology"
The picture above shows 14 relatively mainstream consensus mechanisms summarized by a geek Hasib Anwar, including PoW (Proof of Work), PoS (Proof of Stake), DPoS (Delegated Proof of Stake), LPoS (Lease Proof of Stake), PoET ( Proof of Elapsed Time), PBFT (Practical Byzantine Fault Tolerance), SBFT (Simple Byzantine Fault Tolerance), DBFT (Delegated Byzantine Fault Tolerance), DAG (Directed Acyclic Graph), Proof-of-Activity (Proof of Activity), Proof-of- Importance (Proof of Importance), Proof-of-Capacity (Proof of Capacity), Proof-of-Burn ( Proof of Burn), Proof-of-Weight (Proof of Weight).
Next, we will mainly introduce and analyze the top ten consensus mechanisms of the current blockchain.
》POW
-Concept:
Work proof mechanism. That is, the proof of work means that it takes a certain amount of computer time to confirm the work.
-Principle:
Figure 7 PoW work proof principle
📷
https://preview.redd.it/xupacdfc4db51.png?width=554&format=png&auto=webp&s=3b6994641f5890804d93dfed9ecfd29308c8e0cc
The PoW represented by Bitcoin uses the SHA-256 algorithm function, which is a 256-bit hash algorithm in the password hash function family:
Proof of work output = SHA256 (SHA256 (block header));
if (output of proof of work if (output of proof of work >= target value), change the random number, recursive i logic, continue to compare with the target value.
New difficulty value = old difficulty value* (time spent by last 2016 blocks /20160 minutes)
Target value = maximum target value / difficulty value
The maximum target value is a fixed number. If the last 2016 blocks took less than 20160 minutes, then this coefficient will be small, and the target value will be adjusted bigger, if not, the target value will be adjusted smaller. Bitcoin mining difficulty and block generation speed will be inversely proportional to the appropriate adjustment of block generation speed.
-Representative applications: BTC, etc.
》POS
-Concept:
Proof of stake. That is, a mechanism for reaching consensus based on the holding currency. The longer the currency is held, the greater the probability of getting a reward.
-Principle:
PoS implementation algorithm formula: hash(block_header) = Coin age calculation formula: coinage = number of coins * remaining usage time of coins
Among them, coinage means coin age, which means that the older the coin age, the easier it is to get answers. The calculation of the coin age is obtained by multiplying the coins owned by the miner by the remaining usage time of each coin, which also means that the more coins you have, the easier it is to get answers. In this way, pos solves the problem of wasting resources in pow, and miners cannot own 51% coins from the entire network, so it also solves the problem of 51% attacks.
-Representative applications: ETH, etc.
》DPoS
-Concept:
Delegated proof of stake. That is, currency holding investors select super nodes by voting to operate the entire network , similar to the people's congress system.
-Principle:
The DPOS algorithm is divided into two parts. Elect a group of block producers and schedule production.
Election: Only permanent nodes with the right to be elected can be elected, and ultimately only the top N witnesses can be elected. These N individuals must obtain more than 50% of the votes to be successfully elected. In addition, this list will be re-elected at regular intervals.
Scheduled production: Under normal circumstances, block producers take turns to generate a block every 3 seconds. Assuming that no producer misses his order, then the chain they produce is bound to be the longest chain. When a witness produces a block, a block needs to be generated every 2s. If the specified time is exceeded, the current witness will lose the right to produce and the right will be transferred to the next witness. Then the witness is not only unpaid, but also may lose his identity.
-Representative applications: EOS, etc.
》DPoW
-Concept:
Delayed proof of work. A new-generation consensus mechanism based on PoB and DPoS. Miners use their own computing power, through the hash algorithm, and finally prove their work, get the corresponding wood, wood is not tradable. After the wood has accumulated to a certain amount, you can go to the burning site to burn the wood. This can achieve a balance between computing power and mining rights.
-Principle:
In the DPoW-based blockchain, miners are no longer rewarded tokens, but "wood" that can be burned, burning wood. Miners use their own computing power, through the hash algorithm, and finally prove their work, get the corresponding wood, wood is not tradable. After the wood has accumulated to a certain amount, you can go to the burning site to burn the wood. Through a set of algorithms, people who burn more wood or BP or a group of BP can obtain the right to generate blocks in the next event segment, and get rewards (tokens) after successful block generation. Since more than one person may burn wood in a time period, the probability of producing blocks in the next time period is determined by the amount of wood burned by oneself. The more it is burned, the higher the probability of obtaining block rights in the next period.
Two node types: notary node and normal node.
The 64 notary nodes are elected by the stakeholders of the dPoW blockchain, and the notarized confirmed blocks can be added from the dPoW blockchain to the attached PoW blockchain. Once a block is added, the hash value of the block will be added to the Bitcoin transaction signed by 33 notary nodes, and a hash will be created to the dPow block record of the Bitcoin blockchain. This record has been notarized by most notary nodes in the network. In order to avoid wars on mining between notary nodes, and thereby reduce the efficiency of the network, Komodo designed a mining method that uses a polling mechanism. This method has two operating modes. In the "No Notary" (No Notary) mode, all network nodes can participate in mining, which is similar to the traditional PoW consensus mechanism. In the "Notaries Active" mode, network notaries use a significantly reduced network difficulty rate to mine. In the "Notary Public Activation" mode, each notary public is allowed to mine a block with its current difficulty, while other notary public nodes must use 10 times the difficulty of mining, and all normal nodes use 100 times the difficulty of the notary public node.
Figure 8 DPoW operation process without a notary node
📷
https://preview.redd.it/3yuzpemd4db51.png?width=500&format=png&auto=webp&s=f3bc2a1c97b13cb861414d3eb23a312b42ea6547
-Representative applications: CelesOS, Komodo, etc.
CelesOS Research Institute丨DPoW consensus mechanism-combustible mining and voting
》PBFT
-Concept:
Practical Byzantine fault tolerance algorithm. That is, the complexity of the algorithm is reduced from exponential to polynomial level, making the Byzantine fault-tolerant algorithm feasible in practical system applications.
-Principle:
Figure 9 PBFT algorithm principle
📷
https://preview.redd.it/8as7rgre4db51.png?width=567&format=png&auto=webp&s=372be730af428f991375146efedd5315926af1ca
First, the client sends a request to the master node to call the service operation, and then the master node broadcasts other copies of the request. All copies execute the request and send the result back to the client. The client needs to wait for f+1 different replica nodes to return the same result as the final result of the entire operation.
Two qualifications: 1. All nodes must be deterministic. That is to say, the results of the operation must be the same under the same conditions and parameters. 2. All nodes must start from the same status. Under these two limited qualifications, even if there are failed replica nodes, the PBFT algorithm agrees on the total order of execution of all non-failed replica nodes, thereby ensuring security.
-Representative applications: Tendermint Consensus, etc.
Next Lecture: Chapter 3 Common Consensus Mechanisms (Part 2) + Chapter 4 Consensus Mechanism Selection and Status Summary
CelesOS
As the first DPOW financial blockchain operating system, CelesOS adopts consensus mechanism 3.0 to break through the "impossible triangle", which can provide high TPS while also allowing for decentralization. Committed to creating a financial blockchain operating system that embraces supervision, providing services for financial institutions and the development of applications on the supervision chain, and formulating a role and consensus ecological supervision layer agreement for supervision.
The CelesOS team is dedicated to building a bridge between blockchain and regulatory agencies/financial industry. We believe that only blockchain technology that cooperates with regulators will have a real future. We believe in and contribute to achieving this goal.

📷Website
https://www.celesos.com/
📷 Telegram
https://t.me/celeschain
📷 Twitter
https://twitter.com/CelesChain
📷 Reddit
https://www.reddit.com/useCelesOS
📷 Medium
https://medium.com/@celesos
📷 Facebook
https://www.facebook.com/CelesOS1
📷 Youtube
https://www.youtube.com/channel/UC1Xsd8wU957D-R8RQVZPfGA
submitted by CelesOS to u/CelesOS [link] [comments]

I am stepping down as a moderator of r/btc and exiting the bitcoin community and entering the Ethereum community.

I am stepping down as a moderator of btc and exiting the bitcoin community. Thank you all for fighting until the end. I know I am going to get a lot of hate from pretty much everyone for this post, but I felt the need to post it anyway.

Why Give Up?

I think bitcoin is past the point of no return. There are a number of different routes that bitcoin could take this year, and as far as I can see, they all end up at the same destination; failure. I know I am going to get a lot of flack for this post, and I understand that. I have witnessed bitcoin being announced “dead” many many times throughout its history and I absolutely could be wrong, but almost every one of their predictions were based on a lack of understanding of bitcoin. I don’t feel my prediction is has a lack of understanding. If I am wrong, then I feel it will be through sheer luck that bitcoin survives. I was a bitcoin early adopter in 2011 and have invested far more time into bitcoin than is reasonable. I truly hope bitcoin does survive, but what I think will happen is not predicated on what I want to happen.

How might bitcoin fall?

The Past

I am not going to go through everything that has lead us up to this point. Many of your are well aware of what has brought us here. Bitcoin up until the beginning of 2014 was an unparalleled success. For those of you who weren’t around at the time, there was a huge amount of excitement in the community at all times. It felt like every month there was some announcement that had a positive impact on bitcoin. A new major company offering bitcoin payments, a bitcoin company offering a new service, a new piece of software being added to clients to make them more useful. Bitcoin was making continual progress and the community was unified. Compare the situation back then to day. We have now had 2 years of stagnation, and in many cases degradation of the network.

The Present

The network is now slow and expensive (and getting slower and more expensive), companies have been leaving bitcoin at an exponential rate. No new major companies have adopted bitcoin and there are no signs of this changing in the future. The community is irreparably divided and is at war with itself. Development has stalled.
Where bitcoin has stalled, other cryptocurrencies have been making enormous ground. Bitcoin does not exist in a vacuum. It has competition. Other cryptocurrencies already offer significantly more advance features than bitcoin. The only thing bitcoin has left over other cryptocurrencies is it’s network effect. The inertia of network effect is truly enormous. Bitcoin has been coasting on it for 2 years now. Technology develops rapidly though, and many people are always looking for the next big thing. Investors want to make money and developers want to work on the most advance and growing technology. There has been very little investment into new bitcoin specific companies over the past 2 years. The only new bitcoin company I know of that has received significant investment in the past two years is Blockstream. There has been a very large amount of investment into blockchain companies in general though. The money is there, it’s just not going into bitcoin.
Ethereum has now reached close to 1/3 of bitcoin’s market cap and there is no sign that it is going to let up any time soon. The ethereum community is a breath of fresh air compared to the current bitcoin community and it feels very nostalgic there. It feels very much like the bitcoin community did 3-4 years ago. They have showed that they are not afraid of using hard forks to upgrade the protocol. They have a leader who is intelligent, pragmatic and good at communicating and IMO who is likely to get the network through the early volatile years. The community showed that they value pragmatism and reality over ideology when they stopped a theft of a large percentage of the currency supply and did so without having any adverse affects on anyone other than the thief. They also achieved this while under attack from bitcoin. They have been working with major organisations and companies to promote and forward the use of the network and they listen to the users of the network to find out what problems they have and which features they want, and then work towards satisfying the needs of their users. The developers of the network have known large holdings of the currency, which means conflicts of interest are less likely to arise and protocol development can directly correlate increased returns for the developer’s investment.

The Future

There are a number of possibilities, but I believe all end with very similar outcomes.

Scenario 1 - BU/EC gains 75% of the network hash rate

If BU gains 75% of the network hash rate, a hard fork will become likely (although not certain). Core and their supporters will start to try and burn down the network. All communication channels will overflow with FUD (some real, some fake). Core supporters with large bitcoin holdings will start dumping them on the market in ways that will cause the most damage to price. Core will start recommending at the very minimum a difficulty readjustment and quite likely also a POW change. Price will fall extremely far as speculators adjust their risk exposure and wait out the storm, traders will short the market to make as much money as possible during the fall, and core supporters try to get the BTC price to go as low as possible on the BU/EC side of the fork and BU/EC supporters try to get the price to BCC price to go as low as possible. Whatever the price is before the fork is certain, I think it is likely to reach 50% of that between the time a fork becomes certain and when the fork actually happens. After the fork happens the price could go down to literally any level. While this is happening, the Ethereum market cap is going to overtake bitcoin even if the Ethereum price does not increase (which it will). Bitcoin will not survive this. The moment Ethereum overtakes bitcoin as the biggest cryptocurrency, everyone will find out. It will be posted in articles in every technology news website on the internet. Once the casual bitcoin holders/users find out (hint most do not even pay attention to what is going on in bitcoin) they will quickly panic and either sell to fiat, or sell into Ethereum to speculate. Mining will almost instantly become unprofitable at that point. Monumentally unprofitable in fact. The payout of 12.5 per block will not even slightly cover the cost of electricity and because miners have no direct control over the price of bitcoin they will be absolutely powerless to do anything other than mine at a loss for a very long period of time. If bitcoin price drops to $100, which IMO is very conservative, then it is likely that 90% of the miners will have to turn their hardware off. This means that the difficulty adjustment periods will increase by a factor of 10 to 20 weeks. These miners that are left will need to mine at a huge loss for up to 20 weeks, or hope that somehow the price recovers. I don’t think even the biggest miners could survive that. Further difficulty reset hard forks will be proposed and it will be chaos.
While all of this is happening, Ethereum is likely to be running fine and price will likely be rising significantly as money from bitcoin pours into it.

Scenario 2 - BU/EC never gains 75% of the network hash rate

In this scenario there will be absolutely stalemate. Core will not be able to implement Segwit and therefore will not be able to change bitcoin into a settlement network, but also the transaction throughput will not be increased through larger blocks. The debate will have become so vitriolic that no further progress can be made within bitcoin. Bitcoin simply will not scale on OR off-chain. In this scenario the end is not so violent like in scenario 1 but then end result is the same. Ethereum (and other cryptocurrencies in general) will continue to gain market share throughout the year as Bitcoin remains stuck in stalemate. The bitcoin price continues decreasing and the Ethereum price keeps on increasing until Ethereum overtakes bitcoin. Once the flip happens, it will accelerate significantly as people realise what is happening. The end result is the same as the later part of scenario 1.

Scenario 3 - BU/EC lose most/all of the network hash rate

In this scenario Core manages to get Segwit accepted by the network. Most people in btc simply leave bitcoin for good. Fees will remain high and transaction throughput low. Core will not increase the block size limit until after LN has been proven to work and users have been forced/coerced into using it. LN is not anywhere near ready for production and it is likely to take at least 2 more years until it is released and working and another year or two until it is fully implemented into wallets, and then another year until businesses are able to understand and use it in their backend. I.e. in an ideal world where everything works as intended in this theoretical system it will take 4-5 years until bitcoin has similar properties to what it had 2 years ago. This obviously ignores the fact that there has been no analysis on whether this would even work on an economic level, let alone a technological level.
As transaction fees rise users and business will be pushed into using other cryptocurrencies and fiat and at some point bitcoin’s network effect will be overcome by Ethereum’s. This scenario is essentially the same as scenario 3, but there maybe some initial price pump when Segwit activates and people enjoy and end to the debate. This will likely be short lived though.

What is most likely to happen (IMO)

If BU/EC is to continue to gain further market share of the hash rate and reach the 75% requirement that many parties have suggested. It is likely to take at least a couple more months of deliberations. For this to happen, a number of large pools will need to switch over. Bitfury has stated that they will not support BU and are mining Segwit and have even started mining UASF blocks. HaoBTC is still sticking to the HK agreement (which literally no one else is) and will not be running anything other than Core. This means it is really down to F2Pool and some of the smaller Pools. F2Pool has stated that it will stop signalling for classic and there is no indication that it will start signalling for anything other than Core (not segwit), and has stated that he thinks BU is dead.
This suggests that the most likely scenario is scenario 2. BU/EC will not activate, but nor will Segwit. There are some things that may or may not happen in this scenario. For example it seems that Core are willing to do a UASF to push Segwit through under the pretence that any of the miners that are not mining Segwit are illegitimate as they are against the “consensus”. This will force the miners into making some kind of decision either way. Many are likely to side with Core but I think a significant portion will side with BU initially. A number of different things could happen in this scenario depending on the ratio of hash power on each side of the split. If the split is mostly equal, I expect that two coins will survive for some amount of time. What happens with bitcoin from that point I have no idea. If BU/EC gains the most hash power then the debate will rage on as the BU/EC will refuse to attack the minority chain out of moral reasons. What happens with bitcoin from that point I have no idea. If Core gains the majority share then the BU minority chain will be attacked by some of the majority miners. Core and their supporters do not have any moral objections against this kind of attack. The minority BU miners will then switch back to Core and it will likely play out like in scenario 3.

So this is BU’s fault for forcing a hard fork?

No, this is Core’s fault by making a hard fork dangerous by telling everyone a hard fork is dangerous for the past two years and blocking every conceivable compromise. They have petrified the bitcoin community and convinced them that any kind of hard fork for any reason that does not come from them is dangerous. They have done this to hold onto the power they should not even have in the first place. They have become the self appointed kings of bitcoin. They have achieved this by threatening to burn down the network instead of making a compromise, and by attacking anyone who threatens to take this power away from them. Unfortunately, when Gavin stepped down, he handed to keys to the bitcoin house to the wolves and once they are inside, it seems it is not possible to get them out again. The only way to make them totally irrelevant is to exit and let them be kings of nothing.

Why did you even become a mod in the first place?

I have known bitcoin was on a negative trajectory for quite some time but I felt that one last push to save it was worth my effort. I wanted to help btc be the best bitcoin subreddit to overcome some of the damage that bitcoin has done to the community. IMO btc is the best bitcoin subreddit, but it is far from perfect. I feel very strongly that the moderation of btc is a microcosm of the situation in the bitcoin community in general. I feel there is far too much weight put on idealogical decision making rather pragmatism and realism. The moderation policies of btc are ‘hands-off’ to a point I think is actually detrimental to the sub and to bitcoin. The issue is that, trolls overwhelm the sub and cause constant controversy. They act like a fire under the community and purposely rile everyone up. There is a reason for this. bitcoin was controlled mostly through censorship. Censorship alone was enough to create an echo chamber. They do not have control of the btc moderation team (well actually they managed to get two mods on here who have since left/been removed) so they must turn it into an echo-chamber by other means. They have achieved this by making sure every single post has comments from trolls that try to rile up the community. This makes the btc community have more tunnel vision as they/we try to insulate ourselves from the trolls. The problem is that it means that the community becomes highly idealogical and focused on only one goal.
IMO it is a failure of this sub to not remove comments from trolls. This is pretty much a standard policy across the whole of reddit and the only reasons for not employing it are idealogical. Removing trolling is not the same as banning specific ideas or topics being genuinely discussed. Not doing so just makes btc a frustrating place to try and discuss things. It also means that any actual discussions outside the block size debate get very little traction as everyone gets dragged into the angry posts.
I should be clear though, the other mods of this sub are great and absolutely want what is best for bitcoin.

Isn’t this all just FUD

I am not writing this to sway anyone. This is what I genuinely think will happen, but of course I could be wrong about every single prediction. It saddens me enormously to write this. The current trajectory for Bitcoin is down and the the trajectory for Ethereum and other cryptocurrencies is up. There will likely be people who say “but Ethereum doesn’t have any uses cases”, my argument to that is; what use-cases does bitcoin have right now that could not immediately be adopted by Ethereum today? There will also be people who say “but if bitcoin dies then all other cryptocurrencies will die with it, because how could anyone trust their money if it might just disappear”? My argument to that is; all cryptocurrencies are still in their infancy, even bitcoin. The writing has been on the wall for Bitcoin for quite some time. I do think there will likely be one ‘great’ cryptocurrency, but until that cryptocurrency is adopted by the masses, that title is still available. If the title of ‘biggest cryptocurrency’ can be taken then it was likely never meant to have it very long anyway. If/When a cryptocurrency manages to achieve mass adoption then it will have hundreds of millions of people, companies, organisations and even countries defending it. At that point the entire system will be working towards it’s success. At that point, the current moral ambivalence towards attacking a minority chain will be seen as ridiculous. After mass adoption of a cryptocurrency (for example Ethereum) has occurred, grandma’s will be writing to their local MP in support of the cyberwar against the Ethereum competitor ‘Othereum’. That is decentralisation. Huge numbers of diverse entities working to defend it. This will never happen on a network as limited as bitcoin’s is. In fact bitcoin is actively losing allies.

TL/DR

I’m out. Ethereum is likely to take over this year as bitcoin becomes myspace. This may happen very rapidly. I hope I am wrong.

Disclosure:

I hold both Bitcoin and Ethereum. I have held a number of different cryptocurrencies over the years, but my holdings were almost always 90-100% bitcoin until recently.
submitted by singularity87 to btc [link] [comments]

Even More Miners are Mining Bitcoin at a Loss? What? Bitcoin Cash, Alert: Mining Difficulty, Block Halving ... BITCOIN MINING DIFFICULTY EXPLAINED IN 10 MINUTES! Bitcoin Q&A: Why Can't Bitcoin Mining Difficulty Adjust a Little Quicker? The Difficulty of Mining Bitcoin

Hobby Bitcoin mining can still be fun and even profitable if you have cheap electricity and get the best and most efficient Bitcoin mining hardware. Bitcoin mining is competitive. It’s not ideal for the average person to mine since China’s cheap electricity has allowed it to dominate the mining market. If you want bitcoins then you are better off buying bitcoins. Bitcoin Mining Hardware ... Bitcoin’s hash rate has tumbled about 40% on September 23, which is a record. The crash remains unexplained and surprising, given that the hash rate used to move upwards and update the record high again and again. This measure shows the mining difficulty, as the competition among BTC miners is increasing. Again, the ZCoin website has several suggested pools that are running ZCoin mining with MTP. 2Miners (xzc.2miners.com:8080) F2Pool (PPS Pool) (xzc.f2pool.com:5780) They drive the difficulty up by mining so much. If you want to play around with mining, I suggest a crypto with strong ASIC resistance (or low hash rate) so you have a chance of mining anything. Keep in mind that if it is profitable to mine a coin, more and more people will until the cost of mining equals the reward of mining and the average miner breaks even. Difficulty dropped on 17.07.2018 by over 3%!! BTC price increased!! So what i guess is, you terminate the contracts before mining will be fully profitable again in August when the SEC accepts ETF´s. And there is another proof! — BitcoinAktuell (@bitcoin_aktuell) July 20, 2018. From Bad to Worse

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Even More Miners are Mining Bitcoin at a Loss? What?

Bitcoin Cash, Alert: Mining Difficulty, Block Halving & Profitability vs. Bitcoin-BTC: https://steemit.com/@garypalmerjr We are living in very exciting times... More and more people are continue to mine, and even new people are mining now? I will try to explain what is going on and why mining difficulty is keep going up even though mining is generally not ... This video is unavailable. Watch Queue Queue BITCOIN MINING DIFFICULTY EXPLAINED IN 10 MINUTES! ... a suggested video will automatically play next. Up next Crypto Mining Difficulty 101 - Everything You Need to Know - Duration: 18:40. Goose ... What is crypto mining difficulty, how is it adjusted, what is the point of a block time? Vosk explains how the difficulty for mining a block reward is adjusted when mining Bitcoin on sha-256 or ...

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