The most comprehensive review of Filecoin miners in history. No one can cheat me after reading this.

Text | Huang Xuejiao Operation | Gai Yao Editor | Mandy Wang Mengdie

Produced by | Odaily Planet Daily (ID: o-daily)

Special thanks to 6Block Pomegranate Mining Pool for providing professional guidance for this article

IPFS-related investment opportunities have become the hottest topic in the digital currency industry recently.

After an article titled "The Capital Circle Enters Filecoin Mining" was published on Odaily Planet Daily, many readers sent private messages to the author asking questions such as "My family is planning to invest in XX manufacturer, please help me see if it is reliable."

Even on Tieba and Hupu, there have been many posts like "I recently discovered that my mother is addicted to a coin mining software called IPFS."

Amid the popularity, the number of manufacturers selling mining machines and computing power on the market has increased sharply, and there is a mixture of good and bad. Many manufacturers are using one-sided information and data to deceive investors and engage in false propaganda.

In the face of opacity and information asymmetry, investors are inevitably trapped in "logical fallacies". Typical examples include:

• They believe that miners who can make it onto the testnet hashrate list are reliable;

• Trust the yield and payback period promised by the miners;

• Trust miners who have big names on their platforms and have partnerships with big companies;

• Select mining machines based on single indicators such as "cost per ton" and "packaging speed";

• Without doing your homework, you may rush to invest due to the propaganda of miners such as "divide up the testnet tokens", "grab the beachhead mine", and "the price of machines will increase next month"...

Under the guidance of this logic, investors with bad luck are likely to lose all their money. Technical strength cannot be explained in a few words, and there is no relevant authoritative information available for inquiry. How to identify the reliability of miners has become a "life-saving skill" that investors urgently need to master.

In this article, Odaily Planet Daily will talk about how to choose a manufacturer if you want to invest in Filecoin? Which brands are reliable? What does a certain indicator and parameter represent, and can it accurately measure the cost-effectiveness of a mining machine?

What dimensions can be used to determine whether a manufacturer is reliable?

For example, David, a reader who consulted Odaily Planet Daily, mentioned a mining company called Zhiheyun.

Our chat history in the group

David was impressed by Zhiheyun's promotional points for three reasons:

• The price of mining machines is 22,800-35,800 yuan per node, which is much cheaper than the 60,000-70,000 yuan per unit of mining machines on the market. In addition to the mining machines, there are no other charges (custody fees, technical service fees), and the custody period is up to 5 years (normally 1 year);

• Promising or implying a one-month payback period, or an annualized return of 100%;

• Entered into strategic cooperation with “Listed Major Miners” Xianhe System.

In the eyes of professionals, these beautiful promotional points are full of loopholes, but investors believe them to be true.

In order to help investors identify the parameters of manufacturers and mining machines, Odaily Planet Daily and 6Block Pomegranate Mining Pool have proposed an evaluation system covering the three dimensions of mining fundamentals, mining machine/cloud computing power sales plan details, and market reputation, and conducted an evaluation using nine major mining companies as examples.

The four fundamental indicators of mining companies include:

• Establishment

• Are there any mining machines for sale when the mining code is not finalized?

• Investors and partners

• Have you contributed code to the community?

The 15 indicators of mining machine cost performance include:

• Hardware configuration, including CPU, memory, hard disk capacity, packaging speed

• Mining machines, operation and maintenance, and technical service charging standards, cost-effectiveness

• When the computing power is fully used, whether it supports expansion, and the annual accumulated computing power if it is not expanded, etc.

The two market sentiment indicators include:

• Whether there is any negative news in public reports

• Are there any negative comments in the community (WeChat, Weibo, Tieba, etc.) and among investors?

The nine major miners evaluated in this article are mostly those that rank high in the Filecoin II computing power list and have a certain number of users and high visibility in the community. They are Spacetime Cloud, Pioneer System, 1475, Pomegranate Mining Pool, Force Zone, Star Continent, Diancun Technology, Lingdong Technology and KeyPool.

Looking at the nine major mining companies, which one is the most reliable?

After collecting and sorting out Odaily Planet Daily, the comprehensive evaluation of the 9 major mining companies is as follows.

Let’s look at them one by one.

(1) Fundamentals

Judging from the time of establishment, except for Pomegranate Mining Pool and KeyPool, the rest of the miners were established in mid-2018.

Filecoin was expected to launch its mainnet at the same time as EOS (June 2018), but it was delayed for two years, which made it difficult for the miners who were born out of necessity.

In order to survive, miners have released a lot of "fake mining machines". For example, Star Continent, Lingdong Technology, 1475 and Force Zone launched the first batch of mining machines (cloud computing power) as early as the first half of 2018-2019, all of which used Intel processors that are not suitable for the current mining algorithm, with low mining efficiency or even unable to run directly. How miners solve this legacy problem will be detailed in the "Risk Points" section below.

Let’s look at the investors and partners.

Among the publicly available information of the nine major mining companies, three have raised funds from outside, including 1475, the Pomegranate Mining Pool which was established this year, and KeyPool.

In April 2020, 1475 announced that it had received investment from HashKey Capital, Distributed Capital, and Imo Capital, with a post-investment valuation of 400 million yuan. In June, Qtum announced that it had completed a $2 million angel investment in Pomegranate Mining Pool. KeyPool's parent company, enterprise-level crypto asset service provider Keystore, received tens of millions of dollars in investment from Jianyuan Fund and Distributed Capital in January this year.

Compared with capital, technical ability is more important for miners. We can verify this by whether miners participate in the mainnet/testnet code contribution.

In terms of code contribution, several technicians from Force Zone and Pomegranate Mining Pool have contributed to the official code base, and two team members from each team were invited to join the Filecoin Security Research Group (FSRF). Both 1475 and Pomegranate Mining Pool have submitted core bugs of the test network to the official.

In general, Force Zone, 1475 and Pomegranate Mining Pool participated in the mainnet development and actively searched for bugs, and their technical strength is obvious to all. At the same time, 1475, Pomegranate Mining Pool and KeyPool have obtained the endorsement of the well-known Token Fund in the currency circle, which is a plus for investors in the currency chain mining circle.

(2) Mining machine performance & cost performance

Next, let’s take a look at the most hardcore mining machine/cloud computing power performance competition.

Among the above-mentioned miners, Xianhe System does not sell products directly to retail investors, and Yuanli District and KeyPool only sell cloud computing power, so the following table compares the 15 profiles of the mining machines of the other 6 major miners one by one. If you are planning to purchase a mining machine recently, this chart will undoubtedly be a good helper for you.

Before comparing the data, let’s look at the first item, the degree of information disclosure.

Filecoin mining has spawned many scams that "only promise profits but no configuration instructions" due to the lack of information transparency. Therefore, a very important consideration when selecting a mining machine/mining company is the degree of information disclosure. The more hardware parameters a manufacturer discloses, the more investors can confirm its credibility through horizontal comparison.

The nine major manufacturers mentioned in this article have different performances in terms of information transparency, from high to low:

• Transparency, such as Pomegranate Pool and KeyPool, publish detailed hardware configuration and test results, and be sufficiently transparent among miners;

• More transparent, such as 1475 and Diancun, which publish general hardware parameters and cost-effectiveness;

• Less transparent, such as the Spacetime Cloud, Force Zone, and Interstellar Continent, which do not proactively disclose specific hardware parameters, packaging speed, cost-effectiveness, and other parameters, but investors can obtain them if they ask the sales manager;

• Opaque. Among all the miners, Xianhe System does not disclose mining machine data because of its all To B sales model. Except for the selling price and computing power, the other parameters of Lingdong Technology are difficult to obtain.

Half of the manufacturers have disclosed the processor and memory parameters of the mining machines. 1475, Pomegranate Mining Pool and Diancun basically use AMD32 core processors and 512GB memory, and the low-end version of Pomegranate Mining Pool (priced at 130,000 yuan) uses 256GB memory. It is worth noting that there are different models of AMD32 core processors, and the corresponding prices are also different.

In terms of hard disk storage capacity, the Pomegranate mining pool has the highest configuration. The high-end mining machine (priced at 244,000 yuan) is equipped with a 336TB hard disk, which is 130% higher than the 1475 mining machine of the same price (priced at 248,000 yuan).

Next, let’s look at the hard power of each company – packaging speed. Before looking at the data, we need to know two points.

First, what does packaging speed mean?

Filecoin's mining algorithm consists of two parts: PoRep Proof of Replication (used to verify that miners have stored files as required) and PoSt Proof of Storage (i.e., continuously generating proof of replication to prove that miners have been storing the file). A mining machine must first go through PoRep and store files on the hard disk (starting at 32GB) before it can become an effective computing power for participating in block generation. Therefore, the speed of file storage in the PoRep link (i.e., packaging speed, unit: GB/h) has become one of the most important indicators for measuring the performance of mining machines.

Secondly, how to use packaging speed to judge the quality of mining machines?

Knowing the packaging speed, we can calculate: the cost-effectiveness of the mining machine, the theoretical daily income of mining, and the time required for the mining machine to fill up the storage.

First, the cost performance of the mining machine, that is, the ratio between unit output and unit input. The larger the ratio, the higher the cost performance of the mining machine . When the fundamentals of the manufacturers are not much different, this is the most important indicator for choosing a mining machine.

The industry's commonly used formula for calculating cost-effectiveness is:

Cost-effectiveness of the whole machine = packaging speed / selling price

This results in a value of GB/h/10,000 yuan, which represents the packaging capacity obtained by purchasing the entire mining machine.

However, some people believe that it is not scientific to simply measure output by packaging speed. If the hard disk capacity (theoretical computing power) of two mining machines is 100T, then it is meaningful to compare the packaging speed. However, if the hard disk capacity of the mining machine is different, for example, the hard disk capacity of the above-mentioned pomegranate mining machine is 1.3 times that of its competitors, its investment in hard disk and final output are also several times that of its competitors, but this is not reflected in this formula.

To this end, we need to add another index: cost-effectiveness excluding storage costs.

Cost-effectiveness after deducting storage costs = packaging speed / (selling price + shipping costs - storage costs)

It deducts the storage cost and represents the pure packaging capacity obtained per 10,000 yuan, and the unit is also G/h/10,000 yuan.

Storage cost calculation method: Miners usually publish the models and specifications of hard drives, and mostly use Western Digital and Seagate hard drives. The prices of these traditional accessories are relatively transparent. The price on JD.com is 200-300 per T, so we take 250 yuan/T. Miners usually do not make profits through hardware price differences, so the storage cost of a certain mining machine can be calculated.

Secondly, the packaging speed can calculate the theoretical daily income of mining.

Suppose you bought a mining machine with a hard disk size of 100T, how do you calculate your daily income? This depends on how much effective storage (computing power) you have. On the first day of the mainnet launch, your effective storage starts to accumulate from zero.

Daily effective storage = packaging speed (GB/h)*24h

No matter how the computing power of the entire network changes, the packaging speed determines your daily computing power and cumulative computing power, and also determines the proportion of your effective storage in the entire network and the possibility of block generation (income).

Theoretical daily mining income = cumulative effective storage / effective storage of the entire network * (daily coin production - mortgage amount) * coin price

Of course, this is only a theoretical benefit. The actual benefit is not only affected by the packaging speed, but also by factors such as operation and maintenance stability and the mining pool explosion rate, which cannot be ignored.

Third, the packaging speed can also calculate the time required for the mining machine to fill up the storage.

A hard drive can only function to its maximum potential when it is fully populated. By knowing when the hard drive is fully populated, investors can also consider in advance whether to add more hard drives after the storage is fully populated.

Time required to fully store the hard disk = hard disk size / effective storage per day * 1024

I have laid the groundwork for a long time just to help everyone understand the data more clearly.

In terms of packaging speed, Spacetime Cloud, 1475 and Diancun Technology are the fastest, all reaching 90+GB/h. Accordingly, they also take the shortest time to fill up the hard disk, which can be achieved within 2-3 months after the mainnet is launched. (It should be noted that the packaging speed of 1475 and Diancun is calculated by Odaily Planet Daily based on their published cost-effectiveness.)

The maximum packaging speed of Pomegranate Mining Pool and Star Continent is nearly 30% slower than the above three companies, and the time taken to fill it up is also relatively longer; and because the hard disk of Pomegranate Mining Pool is the largest, it takes about 7 months to fill the hard disk.

Here we need to discuss whether it is necessary to make additional investments after the hard disk is full.

Many people instinctively think that the mining machine will function at its best when the hard disk is full, but this is not the case.

Filecoin mining machines are mainly composed of three parts: computing equipment, storage equipment and GPU. What proportion of the total cost does storage, or hard disk, account for? According to statistics from Odaily Planet Daily, the storage cost of the six major miners accounts for 15-21% of the selling price. Only the Pomegranate Mining Pool, which has the largest hard disk, has a storage cost of 32-34%.

If you don't add more disks to your mining machine after the hard disk is full, it means that the computing equipment and GPU you invested tens of thousands of dollars in (more than 75% of the investment) will become disposable items, just to get 100T of effective storage. What's more frightening is that if you don't realize that storage can be expanded and want to get more computing power, so you choose to purchase a large number of mining machines at one time, then the investment in computing equipment and GPUs will be even more wasteful.

Of course, you can also sell the mining machine after the hosting period expires (1-3 years) to recover the residual value. However, due to the long service life, your hardware is bound to be severely discounted.

To this end, the Pomegranate Mining Pool has purchased larger hard drives for users by default, allowing users to obtain the highest possible computing power at one time.

The last item of data in the table is the annual cumulative computing power that users can obtain without expansion (which is a statistics of the daily cumulative computing power of the mining machine).

Data shows that the annual cumulative effective storage capacity of Pomegranate Miner is the highest, reaching 87,360TB, followed by Spacetime Cloud (62,400TB) and Star Continent (59,136TB), and the lowest is 1475 (48,168TB) and Point Storage (40,560TB). The annual cumulative effective storage capacity of Pomegranate Mining Pool can reach up to 2.15 times that of Point Storage.

If users of 1475 and Diancun want to keep the computing equipment and GPU of the mining machine idle within a year, they will need to reinvest at least 4-6 times, with a cumulative investment of approximately 180,000 to 216,000 yuan, which can account for up to 87%-95% of the initial investment.

I wonder if you who are planning to purchase a mining machine have taken these numbers into consideration?

Next, let’s look at the price, charges and cost-effectiveness.

For the convenience of comparison, I put this comparison picture again.

The market price of Filecoin mining machines is generally divided into three levels: high-end mining machines of 200,000-300,000 yuan, mid-end mining machines of 60,000-130,000 yuan, and low-end mining machines of less than 60,000 yuan.

With such a huge price difference among these mining machines, should investors try to equip themselves with the best-performing mining machines, or should they choose mining machines that are within their means (for example, some people would buy “cheap” mining machines that cost around 20,000 to 30,000 yuan)?

In fact, both ideas are wrong. Investors should indeed act within their means, but what is more important is to spend money wisely and choose cost-effective mining machines.

In terms of the performance-price ratio of the whole machine, among the six major miners, Diancun became the "king of performance-price ratio" due to its high packaging speed and low price, followed by Spacetime Cloud and 1475. Pomegranate Mining Pool ranked last.

In terms of cost-effectiveness after deducting storage costs, Spacetime Cloud and Dot Storage have the highest cost-effectiveness, reaching 5+GB/h/10,000 yuan, followed by 1475, which is 4+GB/h/10,000 yuan. Pomegranate Mining Pool and Star Continent have lower cost-effectiveness.

In addition to mining machines, users also need to pay operation and maintenance fees and technical service fees for mining.

Among the six mining companies, 1475, Star Continent and Lingdong Technology package the two together and charge a total of 25-30% of the revenue as service fees, while Spacetime Cloud, Pomegranate Mining Pool and Diancun charge a fixed fee for technical services, with a price of 8,000-18,000 yuan/set/year, and the technical service fee is 15%-20% of the revenue.

Which of these two models is better?

Assuming you believe you can make back your investment in one year, that means your annual income = total mining investment, and then you can calculate the difference between different commission rates. Taking Spacetime Cloud and Star Continent as examples, which have the same selling price but different charging methods, the service fee charged by the former = 1.8 + income * 20%, which is calculated to be 61,500 yuan, while the service fee charged by the latter is 76,000 yuan.

It can be seen from this that a high commission rate has certain disadvantages, and as the price of the currency increases, the user's potential income becomes greater, and the cost of the commission also becomes higher.

So far, we have comprehensively analyzed the plans of various miners to sell mining machines. In summary, the six major miners each have their own advantages and disadvantages.

The packaging speed of Spacetime Cloud and Diancun mining machines is fast and the cost-effectiveness is high. The service charging model is to charge a fixed fee for operation and maintenance, plus a small commission on the profits. There are no "hard flaws" in various performances, making it a choice that combines performance and cost-effectiveness.

In the middle are 1475 and Pomegranate Mining Pool. 1475 performs well in packaging speed and cost performance, but the only drawback may be the high commission rate. Pomegranate Mining Pool has the highest hard disk capacity, the highest annual effective storage capacity without expansion, and the lowest service charge, but the mining machine has a slow packaging speed, which makes the packaging speed per 10,000 yuan lower.

Ranked last is Interstellar Continent, which performs poorly in packaging speed and cost-effectiveness, and has a high commission rate.

(3) Cloud computing power

Among the nine major miners, five of them sell cloud computing power to retail investors, namely Force Zone, Diancun, Spacetime Cloud, Lingdong Technology and KeyPool. The remaining three only sell cloud computing power to large investors.

Because many mining companies do not provide performance indicators such as packaging speed, the comparison of cloud computing power mainly focuses on five aspects: selling price, minimum purchase T number, technical service fee, equity cycle and profit calculation method.

First of all, the profit calculation method of the five miners is based on the proportion of computing power purchased by users in the mining pool.

Suppose you bought 1TB of computing power from a mining company. In the early days of mining, it takes a certain amount of time to fill the hard disk. The user's "paper" computing power has not yet become effective computing power. The user's income is divided according to his share in the mining pool, and the effective computing power of the mining pool is divided. This calculation method is still applicable after the hard disk is full.

Except for KeyPool's cloud computing power contract period of 3 years, the contract periods of the other 4 miners are all 1 year.

The relevant person in charge of KeyPool told Odaily Planet Daily that users will no longer be charged separately for the last two years of the contract, which means that users can enjoy a longer mining cycle by spending 2,000 yuan.

If KeyPool can continue to operate within the contract period, it is equivalent to the user's investment of 700 yuan/T/year. Among many mining companies, the price is the lowest, only 1/3 of the other manufacturers. There are also some mining machines with lower prices. Such a large price difference will inevitably confuse users. Is its computing power mining efficiency relatively low?

Odaily Planet Daily asked the sales manager of Diancun about this, and he said that due to the lack of transparency in information and poor user knowledge in this industry, many miners have made huge profits from it. This price was chosen because Diancun only makes a moderate difference. In terms of the cost-effectiveness of cloud computing power, Diancun can achieve 4GB/h/10,000 yuan, which is only slightly lower than the sales of mining machines. The cost-effectiveness provided by KeyPool is 4.2G/h/10,000 yuan, and the full storage time is 6 months.

In comparison, Lingdong Technology has the highest single-T selling price and service fee, reaching 2,200 yuan/T and a 30% profit commission.

In terms of the minimum purchase threshold, the Force Zone has the highest price, with a minimum investment of 20T, or 42,000 yuan, which seems to be a bit off the "small investment" positioning of cloud computing power. At the same time, the Force Zone is also a manufacturer that only provides cloud computing power and does not sell mining machines separately.

(4) Reputation & Risk Points

Overall, the nine major miners mentioned in the article have a good reputation and no negative news. From the perspective of the investor community, people are skeptical about whether these miners can deliver on their promises and provide cost-effective mining services. Perhaps only after the main network is launched and users actually use the mining machines will there be further "experience reports".

While tracking various manufacturers, Odaily Planet Daily found two risk points. One is that the manufacturers had sold mining machines before mining was confirmed, and now face the risk of low output or even no output. The other is why is Xianhe System, a manufacturer that neither sells mining machines nor computing power to retail investors, on the list? What is the plan?

(1) How to solve the problem of “fake mining machines”?

Among the many miners, 1475, Force Zone, Interstellar Continent, and Lingdong Technology launched their first batch of mining machines (cloud computing power) as early as the first half of 2018-2019, all of which used Intel processors that are not suitable for the current mining algorithms.

The M1 mining machine launched by Star Continent uses an Intel processor (CPU) + 8GB memory, and the maximum hard disk capacity is 48TB

According to an interview with Star Continent by "Coin Market Lady", thousands of mining machines of this type, priced at around 5,000 yuan, have been produced. Conservatively assuming 1,000 units, Star Continent has produced (and most likely sold) at least 5 million yuan worth of mining machines.

Why can't these mining machines be used?

As mentioned above, the first step in Filecoin mining is to perform storage proof, a process that is divided into three stages: Pre1, Pre2, and Commit.

Pre1 encodes the data, Pre2 calculates the hash of the encoding result, and Commit generates a "zero-knowledge proof" for the encoding result for verification by the "proof of replication".

Pre1 is single-threaded and takes a long time to compute; Pre2 is dual-threaded and has high CPU performance requirements, requiring an AMD processor that supports SHA extensions; if an Intel processor is used, according to 1475 measurements, its average seal speed can only reach 1-2GB/h, while AMD's average speed can reach 15-20GB/h, and the input-output ratio of the two can differ by nearly ten times.

So what should users who bought these mining machines do?

In response, the four miners told Odaily Planet Daily that the company would take responsibility and upgrade and replace the "old mining machines" at its own expense without requiring users to make follow-up investments so that they can mine normally. For example, 1475 stated that it had upgraded the Intel version of the mining machines it sold to AMD mining machines for free. Star Continent stated that it would recall and upgrade the mining machines that had been delivered to users, and put the low-end mining machines into the cluster architecture for use as storage machines.

The miners’ promises have yet to be implemented; and it remains to be seen how the mining efficiency of the modified mining machines compares with the latest generation of mining machines.

(2) Miners who “do not sell mining machines”

Among all the mining solutions and cloud computing power mentioned above, we have not compared them with the first one. Why?

Open the official website or official WeChat account of Xianhe System, and you will not see any introduction to mining machine models, nor will you see its sales staff in the community.

However, this company, which does not sell mining machines, has been involved in mining since the first test, and its computing power ranks high. There is no token reward for participating in the test network. It is generally believed that miners are willing to invest hundreds or thousands of machines in the test network in order to compete for rankings and promote the sales of mining machines.

Obviously, Xianhe had no such plan.

To resolve this doubt, Odaily Planet Daily called Xianhe’s official customer service hotline and was told that “Xianhe does have mining machines, but they are not sold to retail investors, and the minimum investment threshold for partners is 3 million.”

While you may be surprised, if you take a closer look at Xianhe's assets, you will understand why it adopts the To B sales model.

Xianhe is one of the mining machine manufacturers that transformed from private cloud storage to Filecoin mining. Similar companies include Chuxun, which is now on the list.

According to Qichacha data, the main body of Xianhe is "Shenzhen Xianhe System Technology Co., Ltd.", which was established in 2010. Its main businesses include

Personal network storage, private cloud servers, security monitoring products, etc. are "high-tech enterprises" recognized by the state and enjoy preferential tax reduction and exemption policies.

Xianhe has been paying attention to Filecoin since 2017 and has gradually entered the mining machine market. The products currently sold on its official website are all related to Filecoin mining, including blockchain distributed cloud storage servers, Filecoin network computing power overall solutions and integrated hosting.

It does not sell mining machines to retail investors, but sells them indirectly through many "deep cooperation partners". The partners that Odaily Planet Daily learned about include Xiandong Technology, Xindou Technology and Zhiheyun that David encountered above.

According to the official WeChat account of Xiandong Technology, Xianhe System is its technical team, and the company has in-depth and close cooperation with Xianhe System.

We cannot tell the relationship between Xiandong and Xianhe from the equity structure and core members. However, public information shows that Huang Zhenming, one of the four largest shareholders of Xianhe, who holds 25% of the shares and is also the supervisor of Xianhe, is the legal representative and major shareholder of another mining company, Xindou Technology.

Judging from the publicity, both parties claimed to jointly build the "Xiamen Operation Center"; and Xindou was also deeply bound with Xianhe in many publicity.

Xianhe System also appears as a "technical partner" in many publicity efforts.

The picture comes from Zhiheyun community, "Zhiheyun Q&A 50"

So are these companies reliable?

Taking Zhihe Cloud as an example, according to the "Zhihe Cloud Q&A 50" provided by the Zhihe Cloud community, the price of a single mining machine starts at 500,000 yuan (22 nodes * 22,800 yuan/node), which is more than twice that of the above-mentioned miners, while the hard disk size is only 132TB, which is more than 30% lower than the above-mentioned miners. Moreover, it does not disclose the hardware and mining machine performance, but instead uses Dell servers, which is a rare choice in the industry. Preliminary judgment shows that there is a high probability of problems.

The picture comes from Zhiheyun community, "Zhiheyun Q&A 50"

Whether the other two mining companies are reliable or not remains to be investigated, but if they are fraudulent, they are using Xianhe's reputation to attract customers, and users come to Xianhe, but problems with the mining machines have nothing to do with Xianhe. I hope you will consider the risks involved.

Is it possible that the reputation of Xianhe System has been used fraudulently? Odaily Planet Daily asked Xianhe System to verify these partnerships, but received no response as of press time.

To avoid misunderstandings and potential risks, it is recommended that well-known manufacturers post the authentication hotline in a conspicuous place on their official website, just like 1475.

"Any use of our name to promote non-our products may involve false advertising. Please beware of fraud and welcome complaints and reports.

Contact number: 173XXXX4571"

postscript

Not long after David finished talking about Zhiheyun, an investor in the group sent a video. The video showed that a company with "Jiaxing Zhiheyun" written on the background wall was being sealed by the police.

David was extremely annoyed. He complained to us for a few words and then rushed to find out what happened.

Filecoin, perhaps because of its charm as the "top currency in the cryptocurrency circle", has attracted countless investors who are eager to try it out without knowing the reason, as well as fraudulent companies waiting for an opportunity to reap the benefits.

Everyone wants to seize investment opportunities, but what is more important is to identify scams and avoid pitfalls to save your life.

If Filecoin is really a "wealth-making train", then there must be more than one opportunity to get on board. In order to avoid missing out, you might as well study it for a while in the "waiting room".

What scammers have you encountered? Leave your name and reason in the comments section and we will help you fight scams.

If you have any manufacturers that you think are strong and have reliable products but we have not mentioned, please contact audi626105 to provide data and obtain coverage.