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『一』 Are there any better WeChat public accounts about blockchain knowledge? It is best to be more professional.

도주

『二』 Can you explain what blockchain is in a simple way? Are there any good blocks? Recommended chain public accounts

I suggest you go to Lieyun Finance
Blockchain is actually two words, block and chain. Every bill is a block, linked together , is the blockchain,
First of all, when Bitcoin started running, Xiao Ming was given 200 yuan, and it was stipulated that whoever records the account first can get 10 yuan (this is the consensus mechanism, which encourages everyone to agree to do the same thing) (thing), and then give everyone a lot of blank bills. Once a transaction occurs, everyone can strive for accounting.
1 One day, Xiao Ming gave Li Si one hundred yuan (this is the deal). At this time, Xiao Ming could yell in the crowd, I will give Li Si one hundred yuan (and sign his name). After everyone hears it, they can strive to keep accounts
2 Since Wang Wu remembers it quickly and finished it first, Wang Wu yelled in the group, "I remembered it well," and Wang Wu sent the bill to him. Wang Wu remembered the others very well, and everyone confirmed that there were no mistakes (Li Si signed), so Wang Wu received a reward of 10 yuan, and then everyone put the bill on the last page of their account books.
3 Wang Wu likes to play Honor of Kings very much. He has always liked a hero, Demacia, but it costs 25 yuan, but Wang Wu only costs 10 yuan, which is obviously not enough, so Wang Wu just I got crazy and thought that I could just keep the accounts myself, since I couldn’t tell anything from the account books. Soon Wang Wu got another opportunity to keep accounts. In addition to recording other accounts, Wang Wu added one more. Wang Wu gave Tencent 25, and then announced it in the group.
4 While Wang Wu was happily waiting to receive Demacia, Li Si looked at the bills carefully and saw that they were all signed by him, so there was no problem. However, Li Si dug out the previous bills and found that Wang Wu only recorded The reward was 10 yuan, so I refused. For the same reason, everyone refused.
5 Wang Wu’s plan failed, and the price was no reward and a lot of energy wasted.
The above basically explains the process of the blockchain clearly.
Do you understand the above explanation? If you don’t understand something, just ask Lieyun Finance

『三』 Who are the lecturers of Zhongshen Blockchain Club

Zhongshen Blockchain Club is hosted by Huolian Culture , Mr. Evangelist, and the China-Shenzhen Cultural Promotion Association were co-initiated and established. He is an evangelist in the offline blockchain industry and a leader in blockchain training and education.
Lecturers include:
Zao Dao, who has more than ten years of financial experience and is quite accomplished. His speech style is humorous and his skills are well-versed. He founded Zhongshen Media in 2017 and has given more than 100 blockchain speeches nationwide. 100+, with a national audience of 20,000+.
ZhangJiaming, Zhang Jiaming devoted himself to the blockchain industry in 2017, the year when the blockchain industry exploded. He held multiple blockchain offline salon sharing sessions with his partners and participated in dozens of blockchain project analyses.
Liang Jian, an expert lecturer on blockchain investment and practical operations, is good at simplifying complex concepts and operational logic. His teaching style is clear and logical, allowing the audience to get started quickly. Blockchain offline sharing sessions reached 50+.
Li Huadong, senior lecturer of Zhongshen Blockchain Club, expert instructor of practical business management, and distinguished lecturer of "World Manager" magazine, came into contact with blockchain in early 2017. After in-depth understanding, he found that blockchain is the future. trend, but the market is mixed. In order to let the people have a correct understanding of blockchain, we are determined to become a firm communicator and evangelist of blockchain.

『四』How to find the blockchain group on WeChat official account

1. Reply "group" in the background of the official account to recommend the assistant WeChat to the Canadian currency circle group.
2. Moments will frequently update a large amount of project group information. If you want to find a blockchain group, you can directly contact the assistant to find it. A WeChat public account is an application account applied by a developer or merchant on the WeChat public platform. This account is interconnected with the QQ account. The platform enables all-round communication and interaction with specific groups of text, pictures, voices, and videos, forming a kind of The mainstream online and offline WeChat interactive marketing method.

『武』 What are the reliable and recommended WeChat public accounts and WeChat groups in the blockchain field?

Contracts, transactions and their records constitute our social economy, law and politics. important part of the system. They protect our assets and define the boundaries of the organization. They form and authenticate our personal identities and various historical events. They manage a range of activities between countries, organizations, communities and individuals. They direct all administrative and social activities. But these critical tools, and the bureaucracy that governs them, have not kept pace with the digital transformation of the economy. It's like an F1 car suddenly encountering a big jam. In a digital world, our approach to regulation and administrative control must change.

Blockchain has the potential to solve this problem. As the core supporting technology of Bitcoin and other virtual currencies, blockchain is an open, distributed ledger that can effectively record transaction records between two parties, and is verifiable and permanently saved. The ledger itself can be programmed to automatically trigger transaction completion.

Five basic principles of blockchain technology

1. Distributed database

Blockchain Every party on the network has access to all data and its complete history. No one party controls the data or information. Each party can directly verify the records of all parties to the transaction, without the need for an intermediary.

2. Point-to-point communication

Each independent point can communicate directly without going through a central node. Each node can store information and pass all information to all other nodes.

3. Limited transparency

Users who have access to the system can see each transaction and its value. Each node or user on the blockchain has a unique address consisting of letters and numbers, which can be used as the user's identity. Users can choose to remain anonymous or disclose their identity to others. Transactions occur between addresses on the blockchain.

4. Records cannot be changed

Once the transaction results are entered into the database, the account information will be updated accordingly, and the records cannot be changed, because this information is mutually exclusive with all previous transaction records. Association (this is where the term "chain" comes from). Various computational algorithms and methods are used to ensure that the records in the database are permanent, ordered in chronological order, and visible to everyone else on the network.

5. Computational logic

The digital nature of the ledger means that blockchain transactions can be linked to computational logic and can actually be implemented through programming. All users can set algorithms and rules so that transactions can be automatically triggered between nodes.


With blockchain technology, we can imagine a new world in which contracts are stored in a transparent and shared database in the form of digital programming and will not be deleted or deleted. To tamper with, to be revised. In such a world, every agreement, every process, every task and every payment will have a digital record and digital signature that can be identified, verified, stored and shared. Intermediaries such as lawyers, brokers and bankers are no longer necessary. Individuals, organizations, machines and algorithms are free to interact and transact with each other frictionlessly. This is the endless potential brought by blockchain.

In fact, almost everyone has heard that blockchain will have a revolutionary impact on businesses and will redefine businesses and the economy. While we remain enthusiastic about the potential of blockchain, we are also concerned that it may be overblown. It’s not just security issues (like the collapse of a Bitcoin exchange in 2014 and recent hacks) that worry us. The experience of studying technological innovation tells us that if there is a blockchain revolution in the future, there will be many obstacles - technical, governance, organizational and social obstacles. Reckless application of blockchain technological innovations without a true and thorough understanding of blockchain is likely to lead to a big mistake.

We believe it will take many years before blockchain can truly transform businesses and governments. Because blockchain is not a "disruptive" technology, disruptive technology can impact traditional business models with low-cost solutions and can quickly replace traditional enterprises. We believe that blockchain is a fundamental technology: it has the potential to create newBase. But its impact is widespread, and it will take decades for blockchain to penetrate economic and social infrastructure. The process of blockchain popularization will be gradual, and this process and its strategic significance will be the focus of this article.

Patterns of Technology Adoption

Before discussing blockchain strategy and investment, let’s recall what we know about technology adoption below process, especially the adoption process of other underlying technologies. One of the most relevant examples is the adoption of distributed computer network technology, namely the TCP/IP protocol, which laid the foundation for the development of the Internet.

TCP/IP first appeared in 1972 and gained widespread attention in a single use case: it emerged as the basis for sending emails between researchers on the ARPAnet, which was developed by the U.S. Department of Defense The predecessor of the commercial Internet. Before TCP/IP, the communication system architecture was based on "circuit switching". The connection between two parties or two machines had to be preset and maintained through a switch. To ensure that any two nodes can communicate, telecom service providers and equipment manufacturers have invested billions of dollars in dedicated lines.

TCP/IP completely changes the above model. The new protocol digitizes information and breaks it into many small packets, each of which includes address information. Once these packets are released into the network, they can take any route to reach the recipient. Data sending and receiving points in the network can decompose the data packets, reassemble the data packets, and interpret the data. This eliminates the need for dedicated lines or large-scale infrastructure. TCP/IP creates an open, shared public network with no central agency or body responsible for maintenance and updates.

Traditional telecommunications companies and related companies are skeptical of TCP/IP. Few imagine that data, information, audio and video can be established under a new system, and few imagine that related systems will be very secure and develop rapidly. However, from the late 1980s to the 1990s, more and more companies, such as Sun, NeXT, HP, and Silicon Graphics, used TCP/IP to develop internal local area networks within the company. In doing so, they developed technologies that transcended email and increasingly replaced traditional LAN technologies and standards. As enterprises adopt these newly developed technologies and tools, their production efficiency has been greatly improved.

In the mid-1990s, the emergence of the World Wide Web made TCP/IP widely used. Newly created high-tech companies began to provide the "tools"—the hardware, software, and related services necessary to connect to and exchange information with today's public networks. Netscape commercialized browsers, web servers, and other tools and components. SunThe company promotes the development of application programming language-Java. With the exponential growth of information on the Internet, the emergence of Infoseek, Excite, AltaVista, and Yahoo are all guiding users to use TCP/IP technology.

Once this basic infrastructure is widely accepted, a new generation of businesses can seize the opportunity brought by low-cost Internet access to create more Internet services, which in turn helps to There are alternative business models. CNET brings news online. Amazon sells more books than any brick-and-mortar bookstore. Priceline and Expedia make buying air tickets easier and the entire buying process more transparent. These new entrants are expanding their business at very low costs, causing traditional businesses such as newspapers and physical retail stores to feel unprecedented pressure.

Relying on the widespread presence of the Internet, companies have created novel and revolutionary applications that are enough to fundamentally change traditional business models and create value. These enterprises are built on new P2P architectures and generate value by coordinating users of distributed networks. Consider how eBay transformed online retailing with its auction model, Napster transformed the music industry, Skype transformed telecommunications, and Google transformed web search by leveraging the links users form to provide more precise search results.

Many companies are already using blockchain to track goods along the supply chain. Ultimately, it took more than 30 years for TCP/IP to gain widespread acceptance—used alone, locally, as a replacement, and as a catalyst for transformation—and reshape our economy. Today, more than half of the world's most valuable listed companies have Internet-driven, platform-based business models. The foundations of our economy have fundamentally changed. Physical assets and proprietary intellectual property are no longer guarantees of competitive advantage; companies that lead economic development can play a key role, especially those able to organize, influence, and coordinate extensive networks of communities, users, and organizations.

New System

Blockchain - the P2P network on top of the Internet - was launched as the core foundation of Bitcoin in October 2008 Entering people's field of vision, Bitcoin is a virtual currency system that does not issue currency, transfer ownership and confirm transactions through a central authority. Bitcoin is the first real-world application of blockchain technology.

The similarities between blockchain and TCP/IP are obvious. Just like email allows people to exchange information, Bitcoin allows people to conduct transactions. The development and maintenance of blockchain is open, distributed, and shared—just like TCP/IP. A group of volunteers around the world maintain its core software. Like email, Bitcoin received enthusiastic support from the beginning, but only from a relatively small number of people.

TCP/IP significantly reduces interconnection costs, fromAnd create new value for economic development. Likewise, blockchain can significantly reduce transaction costs. Blockchain has the potential to become the system of record for all transactions. If this becomes a reality and new businesses based on blockchain technology will influence and control emerging industries, the economy will once again undergo fundamental changes.

First, let’s take a look at how businesses operate today. Recording transactions is a core task that every business must do. These records track past activities and results and provide guidance for the future. They can provide insight into not only how a business works internally, but also how the business is connected to the outside world. Every business or organization will have its own records, and these records are private and confidential. Many companies do not have a general ledger record of all company activities; instead, all records are scattered within various branches or departments within the company. The problem is that reconciling transactions between individuals and private ledgers takes a lot of time and is also error-prone.

For example, a typical stock trade can be completed in microseconds without human intervention. However, settlement — transferring ownership of the shares — can take up to a week. This is mainly because no party has access to other people’s ledgers, and there is no way to automatically prove the owner of an asset, nor to automatically transfer assets. Instead, many intermediaries are needed to ensure the existence of the asset and to record the transfer of ownership of the asset.

In a blockchain system, ledgers can be replicated in many identical databases, each party will have a set of data, and stakeholders will also maintain records. When one party's data changes, all other copies of the ledger are updated at the same time. Whenever a transaction occurs, the asset type and value of the transaction are recorded in all ledgers. No third-party intermediary is required to prove or transfer ownership. If a stock transaction occurs on a blockchain system, its settlement will be completed within seconds, is extremely secure, and can withstand verification. (The vulnerability in the Bitcoin exchange hack was not in the blockchain itself, but in the separate systems that used the blockchain to connect the parties.)

A framework for blockchain to gain widespread acceptance

If Bitcoin is like early email, does it still take decades for blockchain to fully realize its potential? In our opinion, the answer is yes. We can’t predict exactly how many years it will take for change to occur, but we can guess what applications will emerge first and how widespread blockchain acceptance will eventually become a reality.

How basic technology gains wide acceptance

The popularization of basic technology usually has four stages. Each stage depends on the innovativeness of the application and the complexity of the coordination effort. Less innovative and less complex apps will be accepted first. It will take decades for more innovative and complex applications to become widely accepted, butBut it can have a revolutionary impact on the economy. TCP/IP technology, introduced by ARPAnet in 1972, has reached a period of transformation, but blockchain applications are still in the early stages of development.

In our analysis, history shows that there are two dimensions that influence the development of underlying technologies and their application scenarios. The first is its innovativeness—how new an app is to the world. The more innovative it is, the more effort it will take for users to understand its functionality. The second dimension is complexity, represented by the level of ecosystem coordination—how many agents are required to use the technology and how diverse the agents are to co-create value. For example, a social network is useless with only one user; it is valuable only if all your relationships are on the social network. Other users of the application must work together to create value for participants. For many blockchain applications, the principle is the same. And as these applications increase in scale and impact, their adoption will bring about major institutional changes.

We developed a framework to analyze the development of innovation according to the two dimensions mentioned above, integrating it into four quadrants. Each quadrant represents a stage of technology development. Understanding which quadrant blockchain innovation falls in can help company executives understand the challenges faced by blockchain, as well as the level of coordination and consensus required to adopt blockchain technology, as well as the necessary laws and regulations. efforts. It also illustrates what processes and infrastructure are needed to drive widespread adoption of an innovation. Managers can use it to evaluate the status of blockchain development in any industry and evaluate the company's problems with strategic investments in blockchain.

Independent applications

In the first quadrant are applications that are less innovative and less difficult to coordinate and can provide more Well, a lower cost, more professional solution. Email is a low-cost communication method that replaces telephone calls, faxes and traditional letter-writing methods. It is also an independent application mode of TCP/IP technology (even though its value increases with the increase in the number of users). Bitcoin is also in this quadrant. Even in its infancy, Bitcoin is only an alternative payment method for a small number of people. (You can think of it as a complex email that transmits not just information, but actual value.) At the end of 2016, the total market value of Bitcoin was expected to reach $92 billion. The overall global payment market size has reached 411 trillion US dollars. The scale of Bitcoin is still very small. However, Bitcoin is developing rapidly and is becoming more and more important in instant payment, foreign exchange and asset transactions. In these areas, the current financial system has limitations. sex.

Partial Application

Innovations in the second quadrant are relatively novel but only require a limited number of users to create value. , so it is relatively easy to popularize this type of technology. If blockchain follows the development path of network technology, we can expect blockchain innovation to develop local private networks through independent applications, so that multiple organizations can be connected through a distributed ledger.

Many of the initial private blockchain projects basically appeared in the financial field, and there were relatively few companies within the network, so there was not much coordination cost. Nasdaq is partnering with Chain.com, a blockchain infrastructure provider, to provide related technology for processing and confirming financial transactions. Bank of America, JPMorgan Group, the New York Stock Exchange, Fidelity Investments, and Standard Chartered Bank are testing blockchain technology in many areas such as trade finance, foreign exchange, cross-border settlement, securities settlement, etc. in order to replace paper-based manual transaction processing processes. The Bank of Canada is testing a digital currency called CAD Coin for interbank transfer services. We expect private blockchains to continue to evolve and provide specific service functions for various industries.

Alternatives

The third quadrant contains applications that are relatively less innovative but require a lot of coordination because they Involves widespread public use. The purpose of these innovations is to replace traditional business models, so these applications will face many obstacles; not only do such innovations require more coordination, but the processes they are replacing are also very mature and deeply integrated with current enterprises and systems. Examples include cryptocurrencies - a new type of money that originated from the Bitcoin payment technology. The key difference is that cryptocurrencies require all parties to a currency transaction to accept the technology, which challenges governments and mechanisms that have long been under traditional regulatory systems. Consumers will also have to change their behavior and understand how to use cryptocurrencies to realize their potential.

A recent MIT experiment highlights the challenges facing digital currency systems. In 2014, the MIT Bitcoin Club provided $100 in Bitcoin to 4,494 MIT undergraduate students. Interestingly, 30% of students did not even register to receive this free money, and 20% of students who registered to receive it converted their Bitcoins into cash within a few weeks. Even tech-obsessed students have trouble understanding how and where to use Bitcoin.

One of the boldest alternative blockchain applications is Stellar, a non-profit project that aims to provide affordable financial services to those who have never had financial services, including banks. Business, micro payment, remittance. Stellar has its own virtual currency, lumens, and also allows users to save other assets on its system, including other currencies, airtime, and digital credits. Stellar initially focused on Africa, especially Nigeria, Africa’s largest economy. There Stellar has gained widespread adoption among its target user groups and at very low cost. But the future will not be smooth sailing because there are many difficulties in industrial chain coordination. Although the bottomPopular adoption is proof of Stellar’s ​​vitality, but for it to become a banking standard, it will also need to influence government policy and convince central banks and large corporations to use it. This can take years of hard work.

Change

In the last quadrant are the most innovative applications that, if successful, will change the economic, social and political systems the essence of. This will involve the coordination of many entities, and it will also require unanimous support from large institutions in terms of standards and processes. The widespread adoption of such innovations will require significant changes in social, legal and political institutions.

“Smart contracts” are currently the most revolutionary blockchain application. Payments and transfers of currency or other assets are automatically completed when pre-agreed conditions are met. For example, as long as the goods are delivered, the smart contract will automatically pay the supplier. A company can indicate on the blockchain that a certain type of shipment has been delivered—or that a product has GPS functionality that automatically updates its location, which in turn triggers a payment. We are seeing early pilot projects of this kind of self-enforcing contracts in corporate finance, banking, and digital equity management.

The implications of this are exciting. The company will be built on contracts, from registration to buyer-supplier relationships to employee relationships. If contracts were self-executing, what would happen to traditional corporate structures, business processes, and intermediaries like lawyers and accountants? What will happen to managers? Their roles will fundamentally change. Before we get too excited, we must remember that we are still decades away from widespread adoption of smart contracts. This would not be possible without the support of big business. There is a lot of coordination and explanation required regarding the design, verification, implementation and execution of smart contracts. We believe this will take a long time. And the technical problems, especially the security issues, are also very daunting.

How to guide blockchain investments

How should company executives consider adopting blockchain technology within their enterprises? Our framework helps businesses identify the right opportunities.

For many enterprises, the easiest is the independent application model, which minimizes risks because this model is the least innovative and rarely involves third-party coordination issues. One strategy is to use Bitcoin as a payment mechanism. The Bitcoin infrastructure and market are already very mature, and the adoption of virtual currency will also require many functional departments to strengthen their blockchain technology application capabilities, including information technology, finance, accounting, sales and marketing, etc. Another low-risk approach is to use blockchain internally for database applications, such as managing physical and digital assets, recording internal transactions, and verifying identities. This is particularly useful for businesses that want to collaborate between multiple internal databases. Testing stand-alone applications will help enterprises develop the skills to meet the needs of more advanced application models in the future.beg. And it is precisely because of the emergence of cloud technology blockchain services from startups and large platforms such as Amazon and Microsoft that testing is becoming increasingly easier.

Localized applications are the natural choice for enterprises in the future. We have also seen that many companies are now investing in private chain networks, and many projects have only a very short-term impact. For example, financial institutions have found that the private chain networks they develop have a limited number of trustworthy counterparties, which can greatly reduce transaction costs.

Enterprises can also use localized applications to solve specific problems in cross-border transactions. For example, many companies are using blockchain to track goods in complex supply chains. This is already used in the diamond industry, where gemstones can be tracked from mine to consumer. This technology already exists.

Developing alternative applications requires careful planning because current solutions are difficult to replace. One approach is to focus on alternative models that do not require end users to change their behavior, proposing alternatives to original expensive and unattractive solutions. At the same time, alternatives must have the same functionality as traditional solutions and be easy for the ecosystem to accept and adopt. The gift card developed by First Data based on blockchain technology is an example of a well-thought-out alternative product. Retail companies that provide gift cards to consumers can use blockchain to track the flow of currency within accounts without relying on external payment processors, which can significantly reduce the cost of each transaction and improve security. These new gift cards even allow balance and transaction privileges to be transferred between merchants.

Blockchain can significantly reduce transaction costs and reshape the economic development model.

Disruptive applications are still far away. But it still makes sense to assess the likelihood of disruptive applications and step up early investments now. Disruptive applications are very influential when combined with new business models in which value creation and capture are different from the current methods. This business model is difficult to adopt, but it can drive the emergence of future companies.

Consider how law firms will change if they adopt smart contract technology. They need to develop new skills in software and blockchain programming. They may also have to rethink their hourly payment model, considering a transaction fee model or a contract custody fee model, just two of the possible models. Whatever approach is taken, company executives must make sure they understand and test the business model implications before making changes.

Transformative scenarios emerge last, but can bring considerable value. They will have a profound impact in two areas: large-scale public identity systems for entry passport control functions, and algorithm-driven decision-making in preventing money laundering and complex financial transactions involving multiple parties. We don’t expect these applications to be widely adopted and popular for at least a decade or even longer.

Transformative applicationsIt will also promote the emergence of new platform companies that will coordinate and manage new ecosystems. These companies will be the next generation of Google and Facebook. This requires patience to achieve. While it's too early to start thinking about large-scale investments, developing the necessary foundations—tools and standards—is still worthwhile.

Conclusion

In addition to providing a reference for the popularization of blockchain, TCP/IP also laid the foundation for the development of blockchain. foundation. TCP/IP is now ubiquitous, and blockchain applications are built on digital data, communication and computing infrastructure, which reduces the cost of experimentation and allows new use cases to emerge quickly.

Using our framework, company executives can figure out where to start preparing their companies for future blockchain adoption. They need to ensure that company employees understand blockchain, can develop company-specific application projects in the four quadrants we built, and invest in blockchain infrastructure.

However, judging from the development path of TCP/IP, time, obstacles to technology adoption, technology complexity, etc., company executives should carefully consider the risks in blockchain testing projects. . To put it more clearly, it is better to start small. But the scale of investment should depend on the current situation of the company and the industry situation. Financial institutions are doing well in adopting blockchain technology. Manufacturing is not ready yet.

No matter what, blockchain is likely to impact your business, the biggest issue is time.

『Lu』How to unbind the WeChat account of Blockchain Cloud Ticket

1. Enter the WeChat public platform and log in using the WeChat applet account.
2. Click Settings in the left sidebar, find the associated official account item at the bottom of the page, and click Details on the right.
3. Find the public account that needs to be unlinked, and click the unlink link on the right.
4. Use the WeChat QR code scan verification by the WeChat Mini Program administrator or WeChat Mini Program member who has the permission to unlink the public account.
5. After confirming the cancellation of the association, neither the WeChat applet administrator nor the official account administrator will receive a notification. Moreover, the WeChat applet will not be able to enjoy various benefits after the association, so you still need to consider before canceling the association. clear.

『撒』What is BTD?

BTD is a project.

The BTD project is the world's first distributed storage chain that supports cloud disk applications. The project's mission is to "create distributed storage that never closes" and "provide the most private cloud disk for global users."

BTD Mainnet: Already online, TPS 1200, mainnet BTD transactions are fast and handling fees are low. At present, the mainnets of other distributed storage projects have not yet been launched, and the tokens issued are also ERC20 tokens, commonly known as air coins. BTD has a huge leading advantage in distributed storage chain technology.

Distributed storage applications have been implemented: application developmentFang has released the world's first distributed cloud disk, BitDisk, based on the BTD storage chain, and registered users and stored data have continued to grow at a rapid rate. At present, other distributed storage projects have not even been launched on the main network, and their applications are still far away.

The BTD project adopts a three-dimensional incentive system of "stable points HDT + incentive points BTD"; it adopts Proof of Trustworthy Storage (PoCR) + Proof of Stake (PoS).