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区块链生产资料有哪些,区块链生产资料是什么

发布时间：2023-12-11-14:17:00 来源：网络区块链知识区块生产资料

区块链生产资料有哪些,区块链生产资料是什么

区块链生产资料是一种分布式数据库，可以用来存储和管理数字资产，可以实现信息共享、资源共享、智能合约等功能。区块链技术是一种分布式账本技术，它可以实现记录任何交易、保护数据安全、支持智能合约等功能，支持建立一个安全可信的、全球可见的数据网络。它的特点是可靠、安全、去中心化，能够记录所有参与者的交易，以及在不同节点之间的信息同步。

智能合约是一种可执行的计算机程序，它可以自动执行某项任务，并在双方完成交易后自动执行。智能合约可以实现自动化的交易、自动执行合同、自动发放资金等功能，大大提高了交易的效率和安全性。智能合约可以通过区块链技术实现，它可以保证交易的安全性，并可以实现跨境交易。

去中心化是区块链技术的一个重要特点，它可以实现去中心化的交易，不需要第三方机构参与。区块链技术的去中心化特点可以提高交易的安全性，减少交易成本，提高交易效率，并且可以实现跨境交易。去中心化的特点使得区块链技术可以实现自动化的交易、自动执行合同、自动发放资金等功能，大大提高了交易的效率和安全性。

总之，区块链生产资料的三个关键词是区块链技术、智能合约和去中心化。这三个关键词都是区块链技术的重要组成部分，它们可以改善传统交易的效率和安全性，使得交易更加便捷和安全。
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❶ Blockchain Encyclopedia: The Past and Present of Blockchain - 3.0 Era

The representative of the blockchain 1.0 era is Bitcoin, and the representative of the 2.0 era is Ethereum , and the troubled times of various copycats and air coins. Blockchain 3.0 is the era of consumer-level blockchain that has truly entered commercial and physical applications after the troubled times. The typical symbol is the emergence of tokens. The pass has brought about changes in traditional business models and production relations. The pass has moved from the digital world to the real economy and has begun to seek practical applications in various industries.

The pass has three elements, one of which is indispensable.

Pass: The pass can be circulated on a large scale in a network and can be verified anytime and anywhere; Certificate: As a proof of digital rights and interests, the pass must be a certificate of rights and interests that exists in digital form, and it must represent It is a right, an inherent and intrinsic value; value: the token must have economic value.

In this way, the meaning of "token economy" is not difficult to understand. The token economy is a large-scale group collaboration based on tokens. It maximizes the role of tokens, allows every role that creates value to share value fairly, fully mobilizes participation motivation, and forms a self-organizing form.

Major changes in the blockchain 3.0 era

The token economy has laid the theoretical basis and technical support for the large-scale application of blockchain, and the future world will also be transformed by it. Large-scale changes include:

1. Fragmented investment, fragmented income, subverting the traditional way of doing business on the Internet. In the traditional Internet era, it was impossible for ordinary people to participate in the investment of a company, but the emergence of blockchain allows ordinary people to make fragmented investments in a large asset. Assuming that Alibaba originally adopted blockchain for fragmented investment, then all fragmented shareholders who invested in Alibaba would be able to reap a return on investment that has increased thousands of times today!

2. Break the money-burning model of the Internet and make everyone a winner. The free model of the traditional Internet is essentially to obtain a large number of users through free products to form monopolies and barriers, and then make profits through advertising and value-added services on this basis. In the blockchain 3.0 era, project income is redistributed by issuing tokens to attract more early investors and community users. As the number of users holding tokens increases, the value of the tokens will become higher and higher, and community users, investors, and projects can all benefit from it. In this way, the money-burning model of providing free services in the early days of the traditional Internet can also be improved, and everyone will become a winner.

3. Breaking down the traditional corporate organizational hierarchy, self-organization may become a future trend. In the blockchain 3.0 era, through the establishment of distribution and collaboration mechanisms through smart contracts, it can be more efficient than enterprises.more acurrate. All token owners will naturally form a community. Everyone has the same goal - "to promote the development of the project and make it a success". They are all members of the community, contribute to the community, promote the value-added of the token, and thus gain benefits together. profit. From a philosophical perspective, this new self-organizing community of freedom, independence, and equality must be the future trend. Gojoy blockchain e-commerce is a self-organized community of blockchain. Every consumer is a token owner and a fragmented investor, so he is very happy to co-create and build Gojoy value.

Therefore, we can look forward to the era of great development of the blockchain 3.0 token economy, and the existing ones may be subverted. What we need to be prepared for is to work hard to embrace the blockchain. If you want to seize the trend of blockchain and understand how to transform into blockchain, please leave a message to communicate and we will take you to learn the blockchain professional certification course.

❷ What is blockchain technology? What exactly is blockchain?

Blockchain technology is one of the top ten typical judicial technology applications on the Internet. Blockchain is a new application model of computer technologies such as distributed data storage, point-to-point transmission, consensus mechanism, and encryption algorithms.

Blockchain is an important concept of Bitcoin. In fact, it is a decentralized database. Blockchain, as the underlying technology of Bitcoin, is a series of data blocks generated using cryptographic methods. Each data block contains a batch of Bitcoin network transaction information, which is used to verify the validity of its information (anti-counterfeiting) and generate the next data block.

Blockchain originated from Bitcoin. On November 1, 2008, a person who called himself Satoshi Nakamoto published the article "Bitcoin: A Peer-to-Peer Electronic Cash System", which elaborated on P2P network technology, encryption technology, timestamp technology, and block technology. The concept of electronic cash system framework such as chain technology marks the birth of Bitcoin.

(2) Extended reading of blockchain production materials:

The birth of blockchain:

The concept of blockchain was first proposed by Satoshi Nakamoto in 2008. In the following years, blockchain became the core component of the electronic currency Bitcoin: a public account for all transactions. By using peer-to-peer networks and distributed timestamp servers, blockchain databases can be autonomously managed.

The blockchain invented for Bitcoin made it the first digital currency to solve the problem of repeated consumption. Bitcoin design has become a source of inspiration for other applications. On December 20, 2016, the Digital Currency Alliance-China FinTech Digital Currency Alliance and FinTech Research Institute were officially established.

❸ What is the origin of blockchain

Blockchain originated from Bitcoin. On November 1, 2008, a person claiming to be Satoshi Nakamoto published published the article "Bitcoin: A Peer-to-Peer Electronic Cash System", which elaborated on theThe architectural concepts of electronic cash systems such as encryption technology, timestamp technology, and blockchain technology mark the birth of Bitcoin.

Two months later, the theory came into practice, and on January 3, 2009, the first genesis block with serial number 0 was born. A few days later, block number 1 appeared on January 9, 2009, and was connected to the genesis block number 0 to form a chain, marking the birth of the blockchain.

In recent years, the world's attitude towards Bitcoin has been ups and downs, but blockchain technology, one of the underlying technologies of Bitcoin, has received increasing attention. In the formation process of Bitcoin, blocks are storage units one by one, recording all communication information of each block node within a certain period of time.

The links between each block are realized through random hashing (also called hash algorithm). The latter block contains the hash value of the previous block. With the expansion of information exchange, a block Continuing with one block, the result is called a blockchain.

(3) Extended reading of blockchain production materials:

Characteristics of blockchain:

1. Decentralization . Blockchain technology does not rely on additional third-party management agencies or hardware facilities, and there is no central control. In addition to the self-contained blockchain itself, each node realizes self-verification, transmission and management of information through distributed accounting and storage. Decentralization is the most prominent and essential feature of blockchain.

2. Openness. The foundation of blockchain technology is open source. In addition to the private information of the transaction parties being encrypted, the data of the blockchain is open to everyone. Anyone can query the blockchain data and develop related applications through the public interface. Therefore, the entire System information is highly transparent.

3. Independence. Based on consensus specifications and protocols (similar to various mathematical algorithms such as the hash algorithm used by Bitcoin), the entire blockchain system does not rely on other third parties. All nodes can automatically and securely verify and exchange data within the system without the need for any human intervention.

4. Security. As long as you cannot control 51% of all data nodes, you cannot manipulate and modify network data at will. This makes the blockchain itself relatively safe and avoids subjective and artificial data changes.

5. Anonymity. Unless required by legal regulations, technically speaking, the identity information of each block node does not need to be disclosed or verified, and information transfer can be carried out anonymously.

❹ What exactly does blockchain refer to and what disciplines or fields does it involve?

What is blockchain? Blockchain applications mainly include Internet technology and information content encryption algorithms, combined with appropriate rules and systems, to form a reliable system software infrastructure. The infrastructure here can be interpreted as the online environment. What does this trust mean? Database encryption methods can be divided into symmetric encryption algorithms and symmetric encryption. Symmetric encryption has higher security, but slower response speed. The elliptic curve encryption technology used in blockchain technology is the fastest method among non-asymmetric encryption algorithms. Therefore, the areaThe encryption algorithm of blockchain technology is very powerful and it can ensure the uniqueness of the customer's identity. In addition, the information in blockchain technology is also protected by data encryption and is difficult to forge.

The blockchain system avoids the above three problems. The behavior of each node is different from other nodes. The behavior of the node is determined by the program in advance. The regulations are stipulated, and the encryption algorithm ensures that every connection point cannot violate the regulations. This is the connotation of grassroots democracy in the system. Blockchain applications are generally used to build trading software, and it is necessary to ensure that the transaction information content is authentic, valid, traceable and cannot be tampered with. Each transaction information is verified and stored in a zone, and the blockchain information is encrypted through hashing technology to ensure that the information cannot be forged. This blockchain forms a transmission chain in chronological order. Each node has complete blockchain information. If the information content of some nodes is destroyed, the blockchain information will not be affected. This type of archival information method is called a distributed ledger.

In such a distributed ledger of blockchain technology, the actual operation of adding a new record and linking it to all nodes must be carried out according to certain rules, otherwise nothing will be true and effective. . This standard is the consensus mechanism of blockchain technology. In essence, a fair and equitable consensus mechanism should allow all nodes to improve the blockchain. When the contents of the added blockchains are different, they should be negotiated according to certain standards until the contents of a certain blockchain are accepted, and then all nodes will copy this blockchain. Instead of equalizing the amount, not all nodes can be added to the blockchain. Instead, a point eligible to be added to the new server block is selected based on certain criteria and the blockchain information added by the node is copied. Blockchain technology uses the latter, and since the election rules are open and transparent, the election ceremony will become the entire competition process.

❺ 108 knowledge points for getting started with blockchain

108 essential knowledge points for getting started with blockchain

(Welcome to communicate with fellow fans)

1. What is a blockchain

The information of multiple transactions and the information indicating the block are packaged together. The verified package is the block.

Each block stores the hash value of the previous block, creating a relationship between blocks, that is to say, a chain. Together they are called blockchain.

2. What is Bitcoin

The concept of Bitcoin was proposed by Satoshi Nakamoto in 2009, with a total number of 21 million. The Bitcoin chain generates a block approximately every 10 minutes, and this block is mined by miners for 10 minutes. As a reward to miners, a certain number of Bitcoins will be issued to miners, but this certain number is halved every four years. Now it's 12.5.If this continues, all Bitcoins will be available in 2040.

3. What is Ethereum

The biggest difference between Ethereum and Bitcoin is the smart contract. This allows developers to develop and run various applications on it.

4. Distributed ledger

It is a database that is shared, replicated and synchronized among network members. To put it bluntly, all users on the blockchain have accounting functions and the content is consistent, which ensures that the data cannot be tampered with.

5. What is quasi-anonymity?

I believe everyone has a wallet, and the wallet address (a string of characters) used to send transactions is quasi-anonymity.

6. What is open transparency/traceability

The blockchain stores all data from history to the present, anyone can view it, and can also view any data in history.

7. What is tamper-proof

Historical data and current transaction data cannot be tampered with. The data is stored in the block on the chain and has a hash value. If the block information is modified, its hash value will also change, and the hash values of all blocks following it must also be modified to form a new chain. At the same time, the main chain is still conducting transactions to generate blocks. The modified chain must always generate blocks synchronously with the main chain to ensure that the length of the chain is the same. The cost is too high, just to modify a piece of data.

8. What is anti-DDoS attack

DDoS: Hackers control many people’s computers or mobile phones and allow them to access a website at the same time. Since the bandwidth of the server is limited, a large amount of traffic The influx of data may cause the website to fail to function properly, resulting in losses. However, the blockchain is distributed and there is no central server. If one node fails, other nodes will not be affected. Theoretically, if more than 51% of the nodes are attacked, problems will occur.

9. Definition of main chain

Taking Bitcoin as an example, at a certain point in time, a block is mined by two miners at the same time, and then 6 blocks are generated first. The chain of blocks is the main chain

10. Single chain/multi-chain

Single chain refers to the data structure that handles everything on one chain. The core essence of the multi-chain structure is composed of public chain + N sub-chains. There is only one, but in theory there can be countless sub-chains, and each sub-chain can run one or more DAPP systems

11. Public chain/alliance chain/private chain

Public Chain: Everyone can participate in the blockchain

Alliance chain: Only alliance members are allowed to participate in accounting and query

Private chain: Writing and viewing permissions are only controlled by one person In the hands of the organization.

12. ConsensusLayer data layer, etc.

The overall structure of the blockchain has six: data layer, network layer, consensus layer, incentive layer, contract layer, and application layer. Data layer: a layer that records data, belonging to the underlying technology; network layer: a structure for building a blockchain network, which determines how users are organized. Consensus layer: Provides a set of rules to allow everyone to reach agreement on the information received and stored. Incentive layer: Design incentive policies to encourage users to participate in the blockchain ecosystem; Contract layer: Generally refers to "smart contracts", which are a set of contract systems that can be automatically executed and written according to their own needs. Application layer: Applications on the blockchain, similar to mobile apps. Former Distributed Storage R&D Center

13. Timestamp

The timestamp refers to the time from January 1, 1970 Day 0 hours 0 minutes 0 seconds 0... The total number of seconds from the current time to now, or the total number of nanoseconds and other very large numbers. Each block is generated with a timestamp indicating when the block was generated.

14. Block/block header/block body

Block is the basic unit of blockchain, and block header and block body are components of blockchain. The information contained in the block header includes the hash of the previous block, the hash of this block, timestamp, etc. The block body is the detailed data in the block.

15. Merkle tree

Merkle tree, also called binary tree, is a data structure for storing data. The bottom layer is the original data contained in all blocks, and the upper layer is each The hash value of a block, the hash value of this layer is combined in pairs to generate a new hash value, forming a new layer, and then upwards layer by layer, until a hash value is generated. Such a structure can be used to quickly compare large amounts of data, and you can quickly find the bottom-level historical data you want without downloading all the data.

16. What is expansion?

The size of a Bitcoin block is about 1M and can save 4,000 transaction records. Expansion means making the block larger so that more data can be stored.

17. What is a chain?

Each block will save the hash of the previous block, creating a relationship between the blocks. This relationship is a chain. Data such as block transaction records and status changes are stored through this chain.

18． Block height

This is not the height mentioned in terms of distance. It refers to the total number of blocks between the block and the first block on the chain. This height indicates which block it is, and is just for identification purposes.

19. Fork

Two blocks were generated at the same time (the transaction information in the block is the same, but the hash value of the block is different), and then in Two chains are forked from these two blocks. These two chainsWhoever generates 6 blocks next will be the main chain, and the other chain will be discarded.

20. Ghost Protocol

Mining pools with high computing power can easily generate blocks faster than mining machines with low computing power, resulting in most of the blocks on the blockchain being generated by these mining pools with high computing power. However, the blocks generated by mining machines with low computing power are not stored on the chain because they are slow, and these blocks will be invalid.

The ghost protocol allows blocks that should be invalidated to remain on the chain for a short time, and can also be used as part of the proof of work

. In this way, miners with small computing power will contribute more to the main chain, and large mining pools will not be able to monopolize the confirmation of new blocks.

21. Orphan blocks

As mentioned before, orphan blocks are blocks generated at the same time. One of them forms a chain, and the other does not form a chain. Then this block that does not form a chain is called an orphan block.

22. Uncle block

The orphan block mentioned above, through the ghost protocol, makes it part of the proof of work, then it will not be discarded and will be saved in the main chain superior. This block is next

23 replay attack

The hacker resends the message that has been sent to the server. Sometimes this can defraud the server of multiple responses.

24. Directed acyclic graph

Also called data set DAG (directed acyclic graph), DAG is an ideal multi-chain data structure. Most of the blockchains mentioned now are single chains, that is, one block is connected to another block, and DAG is multiple blocks connected. The advantage is that several blocks can be generated at the same time, so the network can process a large number of transactions at the same time, and the throughput will definitely increase. However, there are many shortcomings and it is currently in the research stage.

25. What is mining

The mining process is to perform a series of conversions, connections and hash operations on the above six fields, and continue to try them one by one. The random number you are looking for, and finally successfully find a random number that meets the conditions: the value after hashing is smaller than the hash value of the preset difficulty value, then the mining is successful, and the node can broadcast the area to neighboring nodes. block, neighboring nodes receive the block and perform the same operation on the above six fields to verify compliance, and then forward it to other nodes. Other nodes also use the same algorithm to verify. If there are 51% of nodes in the entire network If all verifications are successful, even if this block is truly "mined" successfully, each node will add this block to the end of the previous block, delete the list in the block that is the same as its own record, and resurrect again. the above process. Another thing to mention is that regardless of whether the mining is successful or not, each node will pre-record the reward of 50 Bitcoins and the handling fees of all transactions (total input-total output) in the first item of the transaction list (this is " digThe most fundamental purpose of "mining" is also the fundamental reason to ensure the long-term stable operation of the blockchain), the output address is the address of this node, but if the mining fails, the transaction will be invalidated without any reward. And this A transaction called "production transaction" does not participate in the "mining" calculation.

26. Mining machine/mine farm

Mining machine is a computer with various configurations, and the computing power is The biggest gap between them. A place where mining machines are concentrated in one place is a mining farm

27. Mining pool

It means that miners join together to form a team, and the computer group under this team It is a mining pool. Mining rewards are distributed according to one's own computing power contribution.

28. Mining difficulty and computing power

Mining difficulty is to ensure that blocks are generated The interval is stable within a certain short period of time, such as Bitcoin is issued in 10 minutes

1 block. The computing power is the configuration of the mining machine.

29. Verification

When verification in the blockchain is a confirmation of the legality of the transaction, when the transaction message is propagated between nodes, each node will verify whether the transaction is legal. For example, verify whether the syntax of the transaction is correct, and the amount of the transaction Whether it is greater than 0, whether the input transaction amount is reasonable, etc. After passing the verification, it is packaged and handed over to the miners for mining.

30. Transaction broadcast

That is, the node allows other nodes to pass The network sends information.

31. Mining fees

For the blockchain to work non-stop like a perpetual motion machine, miners need to maintain the system all the time. Therefore, the miners must be given favorable fees. To be durable.

32. Transaction Confirmation

When a transaction occurs, the block recording the transaction will be confirmed for the first time, and will be confirmed on the chain after the block. Each block is reconfirmed: when the number of confirmations reaches 6 or more, the transaction is generally considered safe and difficult to tamper with.

33. Double transactions

That’s what I have For 10 yuan, I used the 10 yuan to buy a pack of cigarettes, and then in an instant I used the 10 yuan that had not yet been paid to buy another cup of coffee. So when verifying the transaction, I need to confirm whether the 10 yuan has been spent. .

34. UTXO unspent transaction output

It is a data structure containing transaction data and execution code, which can be understood as digital currency that exists but has not yet been consumed.

35. Transactions per second TPS

That is throughput, tps refers to the number of transactions the system can process per second.

36. Wallet

Similar to Alipay, it is used to store digital currencies and is more secure using blockchain technology.

37.Cold wallet/hot wallet

A cold wallet is an offline wallet. The principle is to store it locally and use QR code communication to prevent the private key from touching the Internet. A hot wallet is an online wallet. The principle is to encrypt the private key and store it on the server. When it is needed, it is downloaded from the server and decrypted on the browser side.

38. Software Wallet/Hardware Wallet

A software wallet is a computer program. Generally speaking, a software wallet is a program that interacts with the blockchain and allows users to receive, store, and send digital currencies and can store multiple keys. Hardware wallets are smart devices that specialize in handling digital currencies.

39. Airdrop

The project sends digital currency to each user’s wallet address.

40. Mapping

Mapping is related to the issuance of blockchain currency and is a mapping between chains. For example, there are some blockchain companies that have not completed the development of the chain in the early stage. They rely on Ethereum to issue their own currency. The issuance and transactions of the early currency are all operated on Ethereum. With the development of the company, the company's own chain development has been completed. The company wants to map all the previous information on Ethereum to its own chain. This process is mapping.

41. Position

Refers to the ratio of the investor’s actual investment to the actual investment funds

42. Full position

Buy with all funds Enter Bitcoin

43. Reduce the position

Sell some of the Bitcoins, but not all of them

44. Heavy positions

Compared with Bitcoin, Bitcoin accounts for a larger share of funds

45. Short position

Compared with Bitcoin, the share of funds is larger

46. Short position

Sell all the Bitcoins you hold and convert them all into funds.

47. Stop loss

After obtaining a certain profit, sell the Bitcoin held to keep the profit

48. Stop loss

After losses reach a certain level, sell the Bitcoins you hold to prevent further losses

49. Bull market

Prices continue to rise and the outlook is optimistic

50. Bear market

Prices continue to fall, and the outlook is bleak

51. Long (long)

The buyer believes that the currency price will rise in the future, buys the currency, and waits for the currency price After rising, sell at a high price to take profits

52. Short position (short selling)

The seller believes that the currency price will fall in the future, and sells the currency he holds (or borrows it from the trading platform) Coin) sell, wait for the price of the currency to fall, and sell it at a low priceBuy and take profits

53. Open a position

Buy Bitcoin and other virtual currencies

54. Cover the position

Buy in batches Bitcoin and other virtual currencies, for example: buy 1 BTC first, then buy 1 BTC

55. Full position

Buy all the funds into a certain virtual currency at one time

56. Rebound

When the currency price falls, the price rebounds and adjusts because it falls too fast

57. Consolidation (sideways)

The price fluctuation range is small and the currency price is stable

58. Overcast drop

The currency price declines slowly

59. Diving (waterfall)

The currency price fell rapidly and to a large extent

60. Cutting meat

After buying Bitcoin, the currency price fell. In order to avoid expanding the loss, the Bitcoin was sold at a loss. Or after borrowing the currency to go short, the currency price rises, and you buy Bitcoin at a loss

61. Hold on

Expect the currency price to rise, but unexpectedly the currency price falls after buying; or expect the currency price fell, but unexpectedly, after selling, the currency price rose

62. Unwinding

After buying Bitcoin, the currency price fell, causing a temporary book loss, but then the currency price rebounded and the loss was reversed To make a profit

63. Go short

After selling Bitcoin because of the bearish market outlook, the price of the currency continued to rise, and I was unable to buy it in time, so I failed to make a profit

64. Overbought

The currency price continues to rise to a certain height, the buyer's power is basically exhausted, and the currency price is about to fall

65. Oversold

The currency price continues to fall to a certain low, the seller's power has basically been exhausted, and the currency price is about to rise

66. Lure bulls

The currency price has been consolidating for a long time, and it is more likely to fall. Most of the short sellers have sold Bitcoin, and suddenly the short sellers pulled up the price of the currency, inducing the long parties to think that the price of the currency will rise and buy one after another. As a result, the short sellers suppressed the price of the currency, causing the long parties to get stuck

67. Lure shorts

After buying Bitcoin, bulls deliberately suppress the price of the currency, making short sellers think that the price of the currency will fall and sell them one after another. As a result, they fall into the trap of bulls

68. What is NFT

The full name of NFT is "Non-Fungible Tokens", which is a non-fungible token. Simply put, it is an indivisible token on the blockchain. Copyright certificate is mainly used to confirm and transfer the rights of digital assets. The difference from digital currency is that it is unique and indivisible. In essence, it is a unique digital asset.

69. What is the Metaverse

The Metaverse is a collection of virtual time and space, composed of a series of augmented reality (AR), virtual reality (VR) and the Internet (Internet) , where digital currency carries the function of value transfer in this world.

70. What is DeFi

DeFi, the full name is Decentralized Finance, which is "decentralized finance" or "distributed finance". "Decentralized finance", as opposed to traditional centralized finance, refers to various financial applications established in open decentralized networks. The goal is to establish a multi-level financial system based on blockchain technology and cryptocurrency. As a basis, re-create and improve the existing financial system

71. Who is Satoshi Nakamoto?

Satoshi Nakamoto is the developer and founder of Bitcoin. Satoshi Nakamoto published the Bitcoin white paper on November 1, 2008, and mined Bitcoin for the first time on January 3, 2009. Whoever can use the Bitcoin in the genesis block is Satoshi Nakamoto himself, so who Is it Satoshi Nakamoto? There have been many "Satoshi Nakamotos" in history: In 2013, someone revealed that Mochizuki Shinichi, who had made outstanding contributions in the field of mathematics, was Satoshi Nakamoto, but no direct evidence was provided. In 2014, hackers broke into the mailbox used by Satoshi Nakamoto and found the owner of the mail, Dorian Nakamoto. Later, Dorian said that he only obtained the mailbox address and password by chance, not Nakamoto. Cong. In 2016, Craig Wright said that he was Satoshi Nakamoto and could provide Satoshi Nakamoto's private key. But later, Wright withdrew his statement because he could not face everyone's doubts.

72. Bitcoin is different from Q Coin

Bitcoin is a decentralized digital asset with no issuing entity. Q Coin is an electronic currency issued by Tencent. It is similar to electronic points, but it is not actually a currency. Q Coin requires a centralized issuing institution. Q Coin can only be recognized and used because of the credit endorsement of Tencent. The scope of use is also limited to Tencent's games and services. The value of Q coins is entirely based on people's trust in Tencent.

Bitcoin is not issued through a centralized institution, but it is widely recognized around the world because Bitcoin can self-certify its trust. The issuance and circulation of Bitcoin are jointly accounted for by miners across the entire network, and are not A central authority is also needed to ensure that no one can tamper with the ledger.

73. What is a mining machine?

Taking Bitcoin as an example, a Bitcoin mining machine is a professional equipment that competes for accounting rights by running a large amount of calculations to obtain new Bitcoin rewards. It is generally composed of a mining chip, a heat sink and a fan, and only performs A single calculation program consumes a lot of power. Mining is actuallyMiners compete with each other for computing power. Miners with more computing power have a greater probability of mining Bitcoin. As the computing power of the entire network increases, it becomes increasingly difficult to mine bits with traditional equipment (CPU, GPU), and people have developed chips specifically for mining. The chip is the core part of the mining machine. The operation of the chip will generate a large amount of heat. In order to dissipate heat, Bitcoin mining machines are generally equipped with heat sinks and fans. Users download Bitcoin mining software on their computers, use the software to assign tasks to each mining machine, and then start mining. Each currency has a different algorithm and requires different mining machines.

74. What is quantitative trading?

Quantitative trading, sometimes also called automated trading, refers to the use of advanced mathematical models to replace human subjective judgments, which greatly reduces the impact of investor sentiment fluctuations and avoids extreme fanaticism or pessimism in the market. make irrational investment decisions. There are many types of quantitative trading, including cross-platform trading, trend trading, hedging, etc. Cross-platform trading means that when the price difference between different target platforms reaches a certain amount, sell on the platform with a higher price and buy on the platform with a lower price.

75. Blockchain asset over-the-counter trading

Over-the-counter trading is also called OTC trading. Users need to find their own counterparties and do not need to match the transaction. The transaction price is determined by negotiation between the two parties. The two parties can fully communicate through face-to-face negotiation or telephone communication.

76. What is a timestamp?

The blockchain ensures that each block is connected sequentially through timestamps. Timestamps enable every piece of data on the blockchain to have a time stamp. Simply put, timestamps prove when something happened on the blockchain and cannot be tampered with by anyone.

77. What is a blockchain fork?

Upgrading software in a centralized system is very simple, just click "Upgrade" in the app store. However, in decentralized systems such as blockchain, "upgrading" is not that simple, and a disagreement may even cause a blockchain fork. Simply put, a fork refers to a disagreement when the blockchain is "upgraded", resulting in a fork in the blockchain. Because there is no centralized organization, every code upgrade of digital assets such as Bitcoin needs to be unanimously recognized by the Bitcoin community. If the Bitcoin community cannot reach an agreement, the blockchain is likely to form a fork.

78. Soft fork and hard fork

Hard fork means that when the Bitcoin code changes, the old nodes refuse to accept the blocks created by the new nodes. Blocks that do not comply with the original rules will be ignored, and miners will follow the original rules and create new blocks after the last block they verified. A soft fork means that old nodes are not aware of the changes to the Bitcoin code and continue to accept blocks created by new nodes. Miners may work on blocks they have no understanding of, or validation of. Both soft forks and hard forks are "backwards compatible" to ensure that the new sectionPoints can verify the blockchain from scratch. Backward compatibility means that new software accepts data or code generated by old software. For example, Windows 10 can run Windows XP applications. Soft forks can also be "forward compatible".

79. Classification and application of blockchain projects

Judging from the current mainstream blockchain projects, blockchain projects mainly fall into four categories: Category 1: Currency; The second category: platform category; the third category: application category; the fourth category: asset tokenization.

80. USDT against the US dollar

USDT is Tether USD, a token launched by Tether that is against the US dollar (USD). 1USDT=1 US dollar, users can use USDT and USD for 1:1 exchange at any time. Tether implements a 1:1 reserve guarantee system, that is, each USDT token will have a reserve guarantee of 1 US dollar, which supports the stability of the USDT price. The unit price of a certain digital asset is USDT, which is equivalent to its unit price in US dollars (USD).

81. Altcoins and alternative coins

Altcoins refer to blockchain assets that use the Bitcoin code as a template and make some modifications to its underlying technology blockchain, among which Those with technological innovations or improvements are also called alternative coins. Because the Bitcoin code is open source, the cost of plagiarism in Bitcoin is very low. You can even generate a brand new blockchain by simply copying the Bitcoin code and modifying some parameters.

82. Three major exchanges

Binance

Okex

Huobi

83. Market software

Mytoken

Non-small account

84. Information website

Babbitt

Golden Finance

Coin World News

85. Blockchain Browser

BTC

ETH

BCH

LTC

ETC

86. Wallet

Imtoken

Bitpie

MetaMask (Little Fox)

87. Decentralized exchange

uniswap

88. NFT exchange

Opensea

Super Rare

89. Ladder

Bring your own, buy itReliable Ladder

90. Platform currency

Digital currency issued by the platform, used to deduct handling fees, transactions, etc.

91. Bull market, bear market

Bull market: Rising market

Bear market: Falling market

92. Blockchain 1.0

A currency trading system based on distributed ledgers, representing For Bitcoin

93. Blockchain 2.0

The contract blockchain technology represented by Ethereum (smart contract) is 2.0

94. Blockchain Chain 3.0

In the era of intelligent Internet of Things, it goes beyond the financial field and provides decentralized solutions for various industries

95. Smart Contract

Smart Contract, Smart Contract is a computer protocol designed to disseminate, verify or execute contracts in an information-based manner. Simply put, an electronic contract is set in advance and once confirmed by both parties, the contract is automatically executed.

96. What is a token?

The token economy is an economic system with Token as the only reference standard, which is equivalent to a pass. If you own Token, you have rights and interests, and you have the right to speak.

97. The difference between big data and blockchain

Big data is the means of production, AI is the new productivity, and the blockchain is the new production relationship. Big data refers to a collection of data that cannot be captured, managed and processed within a certain time range using conventional software tools. It is a massive, high-growth and high-volume data set that requires new processing models to have stronger decision-making power, insight discovery and process optimization capabilities. Diverse information assets. Simply understood, big data is massive data accumulated over a long period of time and cannot be obtained in the short term. Blockchain can be used as a way to obtain big data, but it cannot replace big data. Big data is only used as a medium running in the blockchain and has no absolute technical performance, so the two cannot be confused. (A simple understanding of production relations is labor exchange and consumption relations. The core lies in productivity, and the core of productivity lies in production tools)

98. What is ICO?

ICO, Initial Coin Offering, is the initial public offering of tokens, which is crowdfunding in the blockchain digital currency industry. It is the most popular topic and investment trend in 2017, and the country launched a regulatory plan on September 4. Speaking of ICO, people will think of IPO, and the two are essentially different.

99. Five characteristics of digital currency

The first characteristic: decentralization

The second characteristic: having open source code

The third feature: having an independent electronic wallet

The fourth feature:Constantly issued

The fifth feature: global circulation

100. What is decentralization?

It has no issuer, does not belong to any institution or country, and is a publicly issued currency designed, developed and stored on the Internet by Internet network experts.

100. What is measurement (scarcity)?

Once the total amount of issuance is set, it is permanently fixed, cannot be changed, cannot be over-issued at will, and is subject to global Internet supervision. Because the difficulty of mining and mining changes over time, the longer the time, the greater the difficulty of mining, and the fewer coins are mined, so it is scarce.

101. What is open source code?

The alphanumeric code is stored on the Internet. Anyone can find out the source code of its design, everyone can participate, can mine it, and it is open to the world.

102. What is anonymous transaction? Private wallet private?

Everyone can register and download the wallet online without real-name authentication. It is completely composed of encrypted digital codes. It can be sent and traded globally in real-time point-to-point without resorting to banks or any institutions. It cannot be traced by anyone without my authorization. ,Inquire.

103. What is a contract transaction?

A contract transaction refers to an agreement between a buyer and seller to receive a certain amount of an asset at a specified price at a certain time in the future. The objects of contract trading are standardized contracts formulated by the exchange. The exchange stipulates standardized information such as commodity type, transaction time, quantity, etc. A contract represents the rights and obligations of the buyer and seller.

104. Digital Currency Industry Chain

Chip manufacturers, mining machine manufacturers, and mining machine agents mine and export to exchanges for retail investors to speculate in coins

105. Who is Bei Feng?

Beifeng: Digital currency value investor

Investment style: Steady

106. Build a community?

Beidou Community (high-quality price investment community)

Combining long and short, focusing on price investment, no contracts, no short-term play

Reasonable layout, scientific operation, prudent and conservative, earning periodic money

Welcome currency friends and seek common development.

❻ What the blockchain changes is not productivity, but production relations. The capital economy will be subverted by the token economy!

"Lichang" - the first community for public chain mining

What the blockchain brings is a once-in-500-year opportunity, because it does not change productivity., but production relations.

1. Another economic form will be reborn

If a person works for a company 8 hours a day, must he work for a company in the future? Is it possible to be self-centered rather than company-centered?

This is the thinking brought to us by blockchain technology.

Most people think of blockchain as a new technology, some say it is a new generation of the Internet, and some call it the digitization of currency or assets. The author believes that what blockchain is facing is to subvert the entire social relations and social organization forms. It is a manifestation of the development of productivity to a certain stage. The Internet has brought about a great development of productivity. The previous production relations have no longer adapted to the development of productivity levels, and have even hindered the development of productivity.

The exchange of new productive forces and the birth of new production relations are the token economy brought about by blockchain technology. Its impact is much more profound than the blockchain technology itself.

Previous capitalist reforms were all centered around capital, and tokens will subvert the economy and even capital. The original modern company organization method of capital structure with raised funds as the core will be subverted by the future economic organization method of token structure with contribution incentives as the core.

The capital economy will be subverted by the token economy, and capitalism may be subverted by tokenism.

2. Reshaping human organizational forms and business organizations

The corporate system can be regarded as the greatest invention of capitalist society in the past few hundred years. It can be said that without the company, there would be no history of Britain becoming an empire on which the sun never sets, and there would be no strong rise of the United States. But as the company has developed over the years, problems have also emerged.

Labor creates value, but workers do not enjoy value, that is, those who create value do not enjoy value, and those who enjoy value do not create value. For example, in Taobao, value is created by executives, employees, consumers, distributors, and suppliers, but those who truly enjoy value are those who invest in the capital market.

It’s time for humankind’s organizational and economic forms to be reshaped. In the past, when running a company, as long as it raised funds, it could hire more people, buy more production materials, and expand reproduction. In this era of fragmentation, entrepreneurs no longer need to rely on a lot of capital to start a business. They can also crowdfund to start a business. Even if you don’t invest any money, as long as your people contribute to the company, they can enjoy the value of the company.

The organizational form of resources has changed: funds are no longer the most important, resources are the most important.

This organizational method is fully expressed by the blockchain. Wu Xiaobo once mentioned a term called "entrepreneur": Entrepreneurs and investors. It is unimaginable that investors and entrepreneurs can be separated. All valuable things in a company are reflected on the balance sheet. Equipment, factories, and land are the most valuable assets. Now data and users are the most valuable assets in the future, and they are not reflected in the balance sheet.

3. Everyone is a contributor and at the same time a recipient

The situation has always been that employees in the company receive salary, and executives receive rewards plus some options. , the channel dealer earns a product price difference, and the partner earns a service fee. Now this logic has changed, and the source of value has been changed. In the past, the surplus value of labor was expropriated by capital. In the future, everyone should be a contributor and enjoy.

A person has a variety of resources: human resources, knowledge resources, and governance resources. Everything is centered on the individual, not around the product or the company.

Blockchain subverts the company's core value - maximizing shareholders' interests, and also subverts the company itself. Blockchain's transformation of traditional companies is reflected in its fragmentation of production processes and data, which is exactly the opposite of many social organizations. In the past, in industrialized societies, business could only be done on a large scale because transaction costs were very high.

Blockchain makes granular transactions possible, miniaturized and trustworthy. In the original exchange of capital flows, there must be a process of fund payment when signing a contract. After digital assetization, it can be automatically processed through smart contracts, and the company system faces various challenges.

In the future token economic structure, things originally considered valuable may become worthless, such as investors and managers, company equity, assets, and claims that form the basis of a company’s capital structure. , capital, funds; the corporate governance structure that constitutes the company's organizational structure - shareholders' meeting, board of directors, management and employees; the accounting statements that constitute the basis of the company's financial system - costs, assets, liabilities, profits, income, depreciation, etc.

4. What changes is not productivity, it changes production relations

The token system is a great invention. It is not a technology or a currency for financing, but the integration of all New organizational forms and operating methods for resource and value sharing are the next economic era. The "certificate circle" will become a more sustainable circle with the influx of more traditional companies after the "coin circle", "chain circle" and "mining circle".

Tokenized transformation: currency reform → chain reform → certificate reform

1C0 is the blood, the chain is the skeleton, and the token is the soul. It can make a person and a community come alive. Everyone is a creator and value contributor, and everyone is an owner and enjoyer. This is the real meaning. However, the current currency reform and chain reform claim to be decentralized and cannot be tampered with, but they are still stuck in theOn a technical level.

Technology will develop very fast in the future. This is not a problem that needs to be worried about. The biggest problem is whether the production relations have been adjusted. Just like as long as the company is established, financing and share reform are not problems.

The upper layer of the pass is currency reform, financing, 1C0, and white paper, which has the function of financing and financial attributes; the lower layer is chain reform, blockchain technology, distributed accounting, encryption authorization, and consensus Mechanisms, smart contracts, etc. have technical attributes. They are interrelated and form a business logic, which is the core of the certificate. But now the top and bottom are separated. People who talk about chains talk about chains, and people who talk about coins talk about coins.

Certificate reform is the operating mechanism of a community. It is the sum of investment, production, distribution, exchange, consumption and other relationships, and has social attributes. It is not determined by the value of the chain, nor by how high the currency is speculated, but by the value of its own operation. The scope of tokens is larger than digital currency and blockchain itself. It is an adjustment of production relations when productivity has developed to a certain stage.

Therefore, in the future society may enter a token community organization, a token economy, or even a tokenism society.

Which fields or companies need token reform

5. Tokens create value and issue coins through the blockchain

The value of the currency is stable , the certificate can appreciate in value. Therefore, the transformation of the token system is a precise distribution and transaction model.

The certificates obtained by investors, the certificates obtained by producers, the certificates obtained by allocators, the certificates obtained by traders, and the certificates obtained by consumers. Balancing these five relationships requires accurate big data analysis. , to achieve a balanced and stable growth mechanism. Therefore, certificate reform is not that simple. Chain reform is the participation of technology, currency reform is the preparation of white papers, and certificate reform can create core value.

After centralization, the company is at the core, while decentralization is at the core of the token. A completely decentralized company has no value.

Is the value of a fully centralized token zero? Does the issuance of coins mean the embodiment of real tokens?

In the future, many company forms will change. Public companies, private companies, credit companies, market capitalization companies, and market capitalization management price-to-earnings ratios are actually issues we need to think about during the transformation of the token system.

In the past, opportunities were once in 10 years, once in 30 years, and once in 100 years. Now they are once in 500 years. The author believes that blockchain is a very big opportunity. Instead of participating in the currency circle , chain circle, it is better to create enterprises with real blockchain token value.

❼ What is data blockchain (BlockChain)

What is data blockchain (BlockChain)?

1. The data blockchain is part of the Bitcoin financial systemThe important concept is to record the transaction record data on the entire Bitcoin network, and these data are shared by all Bitcoin nodes. Through the data block, we can query the history of each Bitcoin transaction.
2. Example:
There are three persons A, B and C. All the funds of A and B are kept by C. And every financial transaction must be recorded by C. Now assume that A and B each have 1 million in custody of C. Then:
A spends 80,000 yuan to B, then C’s record in the account book will subtract 80,000 yuan from A’s name, and add 80,000 yuan to B’s name.
If B transfers 50,000 yuan to A, then C will add 50,000 yuan to A’s name in the account book, and subtract 50,000 yuan to B’s name.
A spends 50,000 yuan to B, then C's account book record will subtract 50,000 yuan from A's name, and add 50,000 yuan to B's name.
3. The function of the data blockchain is similar to that of C’s account record book. It records the user’s ownership of Bitcoin and the records of all users’ transactions in Bitcoin. It’s just that this “account record book” is recorded by the mining software of every Bitcoin miner on the Internet. If a Bitcoin transaction is confirmed by the data blockchain, the relevant information will be recorded in the data blockchain. Bitcoin’s “account record book” is called the data blockchain. All data blockchains on the Internet form Bitcoin’s decentralized network database system.
4. The essence of data blockchain technology is a decentralized and decentralized structure of data storage, transmission and certification methods. Data blocks replace the current Internet's reliance on central servers, making all Data changes or transaction projects are recorded on a cloud system, which theoretically realizes self-certification of data during data transmission. In a far-reaching sense, this goes beyond the traditional and conventional need to rely on the formalization of information verification by a center, and reduces the cost The establishment cost of global "credit", this point-to-point verification will produce a "basic protocol", which is a new form of decentralized artificial intelligence and will establish a new interface and shared interface between human brain intelligence and machine intelligence.

What is data blockchain (BlockChain)? How to explain it in an easy-to-understand manner

Blockchain is a new application model of computer technologies such as decentralized data storage, point-to-point transmission, consensus mechanism, and encryption algorithms. The so-called consensus mechanism is a mathematical algorithm that establishes trust and obtains rights and interests between different nodes in the blockchain system. Shanghai Heshu Software Co., Ltd. is an innovative technology enterprise focusing on the R&D and application of blockchain technology and a professional blockchain technology service provider. The team has been developing blockchain technology since 2016 and has conducted in-depth research on blockchain encryption algorithms, consensus mechanism network security, decentralized, peer-to-peer and other blockchain technology fields.

What is data blockchain (BlockChain), and what is its relationship with today’s big data?

Blockchain is decentralized data storage, point-to-point transmission, and consensusMechanisms, encryption algorithms and other new application models of computer technology. The so-called consensus mechanism is a mathematical algorithm that establishes trust and obtains rights and interests between different nodes in the blockchain system. Heshu Software is an innovative technology enterprise focusing on the R&D and application of blockchain technology and a professional blockchain technology service provider. The team has been developing blockchain technology since 2016 and has conducted in-depth research on blockchain encryption algorithms, consensus mechanism network security, decentralized, peer-to-peer and other blockchain technology fields.

What is blockchain (Blockchain) technology?

Blockchain technology, referred to as BT (Blockchain technology), also known as distributed ledger technology, is an Internet database technology that is characterized by decentralization, openness and transparency, allowing everyone to Participation database records.
You can go to Duoyuan.com to learn more

What is Blockchain?

is a public list of all transactions that have been sent, which ensures that everyone knows the true owner (address) of each Bitcoin. All fully functional nodes on the network will retain a copy of the blockchain.
Block is an independent unit on the blockchain. Each block contains the hash value of the previous block (so it is impossible for someone to remove or modify any block on the blockchain without causing some of the hashes in the blockchain to mismatch), and also There are as many unconfirmed transactions as can be found on the Internet, and a number called a nonce. Someone who is building a block must find a suitable nonce so that the hash value of the block is below a certain threshold (the target value). This can only be done by trying all the nonces one after another. number until a random number that produces the desired hash value is found. The lower the target value, the harder it is to find a suitable random number. Block creation is intentionally made so difficult to prevent someone from spending Bitcoin and then creating and advancing his own blockchain that does not contain the transaction that shows the Bitcoin has been spent, a wipe. The transaction record just now allows him to spend the Bitcoin twice. When a valid block is created, it is distributed throughout the network and the search for the next block begins based on this block.

What is blockchain and what is big data

1. Blockchain: It is a new type of computer technology such as distributed data storage, point-to-point transmission, consensus mechanism, and encryption algorithm. Application mode. The so-called consensus mechanism is a mathematical algorithm that establishes trust and obtains rights and interests between different nodes in the blockchain system.
Blockchain is an important concept of Bitcoin, mentioned in the "2014-2016 Global Bitcoin Development Research Report" released by the Internet Finance Laboratory of Tsinghua University PBC School of Finance and Sina Technology. districtBlockchain is the underlying technology and infrastructure of Bitcoin [2]. It is essentially a decentralized database and serves as the underlying technology of Bitcoin. Blockchain is a series of data blocks generated using cryptographic methods. Each data block contains information about a Bitcoin network transaction and is used to verify the validity of the information (anti-counterfeiting) and generate the next block. .
2. Big data: refers to a collection of data that cannot be captured, managed and processed with conventional software tools within a certain time range. It requires new processing models to have stronger decision-making power, insight discovery and process optimization capabilities. massive, high-growth and diversified information assets.

What is blockchain? What is a blockchain phone?

The concept of blockchain is so popular! Will blockchain technology become a new trend?

In recent years, the development ecosystem of blockchain has gradually been improved and enriched. Industry insiders believe that with national policy support, widespread attention and financial support, blockchain technology can achieve gradual and stable progress. Although the upside prospects of blockchain technology are broad, we must remain calm about this.

What is the relationship between blockchain and big data? Will blockchain replace big data?

The relationship between blockchain and big data is not very big. Big data is mainly about managing massive data, and the core of blockchain is to achieve high security and reliability of data without centralized intermediaries. Jinwowo Network Technology
Therefore, blockchain and big data do not conflict with each other, nor will they replace them. They are completely different solutions for data in different scenarios.

❽ 108 essential knowledge points for getting started with blockchain

Author: Kong Lin

61. Trapped

Expect the currency price to rise, but unexpectedly the currency price falls after buying; or expect the currency price to fall, but unexpectedly the currency price rises after selling

62. Unwinding

After buying Bitcoin, the currency price fell, causing a temporary book loss, but the currency price rebounded later and the loss turned into profit

63. Going short

After selling Bitcoin because of the bearish market outlook, However, the currency price continued to rise, and I failed to buy in time, so I failed to make profits

64. Overbought

The currency price continued to rise to a certain height, and the buyer's power was basically exhausted. The currency price is about to fall

65. Oversold

The currency price continues to fall to a certain low, the seller's power is basically exhausted, and the currency price is about to rise

66. Lure bulls

The currency price has been consolidating for a long time and is more likely to fall. Most short sellers have sold Bitcoin. Suddenly the short sellers pull up the currency price, inducing many parties to think that the currency price will rise and buy one after another. As a result, the short side suppressed the price of the currency and locked up the long side

67. Lure the short side

Buy the long sideAfter entering Bitcoin, they deliberately suppressed the price of the currency, making short sellers think that the price of the currency would fall, and sold them one after another. As a result, they fell into the trap of bulls.

68. What It is an NFT

The full name of NFT is "Non-Fungible Tokens", which is a non-fungible token. Simply put, it is an indivisible copyright certificate on the blockchain. It is mainly used to confirm and transfer the rights of digital assets. , the difference from digital currency is that it is unique and indivisible, and is essentially a unique digital asset.

69. What is the Metaverse

The Metaverse is a collection of virtual time and space, consisting of a series of augmented reality (AR), virtual reality (VR) and the Internet (Internet) Composed of digital currency, which carries the function of value transfer in this world.

70. What is DeFi

71. Who is Satoshi Nakamoto?

72. Bitcoin is different from Q Coin

73. What is a mining machine?

Taking Bitcoin as an example, a Bitcoin mining machine is a professional equipment that competes for accounting rights by running a large amount of calculations to obtain new Bitcoin rewards. It is generally composed of a mining chip, a heat sink and a fan, and only performs A single calculation program consumes a lot of power. Mining is actually a competition between miners for computing power. Miners with more computing power have a greater probability of mining Bitcoin. As the computing power of the entire network increases, it becomes increasingly difficult to mine bits with traditional equipment (CPU, GPU), and people have developed chips specifically for mining. The chip is the core part of the mining machine. The operation of the chip will generate a lot of heat. In order to dissipate heat, Bitcoin mining machines are generally equipped with heat sinks and fans.. Users download Bitcoin mining software on their computers, use the software to assign tasks to each mining machine, and then start mining. Each currency has a different algorithm and requires different mining machines.

74. What is quantitative trading?

75. Blockchain asset over-the-counter trading

76. What is a timestamp?

77. What is a blockchain fork?

78. Soft fork and hard fork

Hard fork means that when the Bitcoin code changes, the old nodes refuse to accept the blocks created by the new nodes. Blocks that do not comply with the original rules will be ignored, and miners will follow the original rules and create new blocks after the last block they verified. A soft fork means that old nodes are not aware of the changes to the Bitcoin code and continue to accept blocks created by new nodes. Miners may work on blocks they have no understanding of, or validation of. Both soft forks and hard forks are "backwards compatible" to ensure that new nodes can verify the blockchain from scratch. Backward compatibility means that new software accepts data or code generated by old software. For example, Windows 10 can run Windows XP applications. Soft forks can also be "forward compatible".

79. Classification and application of blockchain projects

From the current mainstream blockchain projectsLook, there are four main categories of blockchain projects: Category 1: Currency; Category 2: Platform; Category 3: Application; Category 4: Asset Tokenization.

80. USDT against the US dollar

81. Altcoins and alternative coins

82. Three major exchanges

Binance

Okex

Huobi

83. Market software

Mytoken

Non-small account

CMC

84. Information website

Babbitt

Golden Finance

Coin World News

85. Blockchain Browser

BTC

ETH

BCH

LTC

ETC

86. Wallet

Imtoken

Bitpie

87. Decentralized exchange

uniswap

88. NFT exchange

Opensea

Super Rare

89. Ladder

Bring your own, buy a reliable ladder

90. Platform currency

The digital currency issued by the platform is used to deduct handling fees, transactions, etc.

91. Bull market, bear market

Bull market: rising market

Bear market: falling market

92. Blockchain 1.0

A currency trading system based on distributed ledgers, represented by Bitcoin

93. Blockchain 2.0

The contract blockchain technology represented by Ethereum (smart contract) is 2.0

94. Blockchain 3.0

In the era of intelligent Internet of Things, it goes beyond the financial field to provide decentralized solutions for various industries

95. Smart Contract

Smart Contract is a computer protocol designed to disseminate, verify or execute contracts in an information-based way. Simply put, an electronic contract is set in advance and once confirmed by both parties, the contract is automatically executed.

96. What is a token?

The token economy is an economic system with Token as the only reference standard, which is equivalent to a pass. If you own Token, you have rights and interests, and you have the right to speak.

Big data is the means of production, AI is the new productivity, and blockchain is the new production relationship. Big data refers to a collection of data that cannot be captured, managed and processed within a certain time range using conventional software tools. It is a massive, high-growth and high-volume data set that requires new processing models to have stronger decision-making power, insight discovery and process optimization capabilities. Diverse information assets. Simply understood, big data is massive data accumulated over a long period of time and cannot be obtained in the short term. Blockchain can be used as a way to obtain big data, but it cannot replace big data. Big data is only used as a medium running in the blockchain and has no absolute technical performance, so the two cannot be confused. (A simple understanding of the production relationship is the labor exchange and consumption relationship. The core lies in productivity, and the core of productivity lies in production tools)

ICO, Initial Coin Offering, initial public token issuance, is the first step in the blockchain digital currency industry. Crowdfunding. It is the most popular topic and investment trend in 2017, and the country launched a regulatory plan on September 4. Speaking of ICO, people will think of IPO, and the two are essentially different.

99. Five characteristics of digital currency

The first characteristic: decentralization

The second characteristic: having open source code

The third feature: independent electronic wallet

The fourth feature: constant issuance

The fifth feature: global circulation

100. What is decentralization?

It has no issuer, does not belong to any institution or country, and is a publicly issued currency designed, developed and stored on the Internet by Internet network experts.

100. What is measurement (scarcity)?

Once the total issuance is set, it is permanently fixed and cannot be changed or changed at any time.It is super issued and can accept global Internet supervision. Because the difficulty of mining and mining changes over time, the longer the time, the greater the difficulty of mining, and the fewer coins are mined, so it is scarce.

101. What is open source code?

The alphanumeric code is stored on the Internet. Anyone can find out the source code of its design, everyone can participate, can mine it, and it is open to the world.

102. What is anonymous transaction? Private wallet private?

105. Digital Currency Industry Chain

Chip manufacturers, mining machine manufacturers, and mining machine agents mine and export to exchanges for retail investors to speculate in coins

106. Who is Kong Lin?

Kong Lin: Digital Currency Value Investor

Investment style: Steady

107. Konglin Investment Strategy

Combining long-term and short-term, focusing on price investment, no touching contracts, no short-term play

Reasonable layout, scientific operation, steady and conservative, earning money Cycle money

108. Konglin?

Welcome currency friends and seek common development

❾ Blockchain: Return the ownership of data to individuals

This article explains blockchain technology through examples How to return personal information ownership to individuals.

First, let’s look at Taobao’s data ownership. Taobao's data includes personal browsing product traces, personal purchase product details, merchant sales data, product logistics data, payment and collection data, etc. All personal and merchant data are on Taobao's servers. Who does this data belong to? Taobao users (including customers and merchants) believe that data is generated by users and should belong to them. Taobao believes that the server hardware facilities that record user data belong to Taobao, and the data also belongs to Taobao.

This isIt's like you plant a tree in someone else's yard. It's true that you planted the tree, but it was planted on someone else's land. The survival of this tree cannot be separated from your sowing. It is also inseparable from other people’s land. So whose tree does it belong to?

Fortunately, due to the introduction of laws related to the protection of personal information, Taobao's data ownership belongs to users. Unfortunately, there is no way for users to exercise ownership rights. Because you cannot transfer or delete your data from Taobao's servers unless you pay the corresponding cost. Continuing with the above example of planting a tree in someone else's yard, if you want to realize the ownership of the tree and dig it away, that won't work because, first, others won't let you enter the yard; second, you don't have the land, so dig it away. This tree, the tree is dead.

Therefore, having ownership of data does not necessarily mean free disposal of data. Ownership without the right to dispose is in vain. The root cause of this problem lies in the centralized business model and system architecture. In a centralized model, the owner of data ownership has no way to realize the right to dispose of data. Taobao can admit that data ownership belongs to users, but it does not matter. This does not prevent Taobao from using user data to conduct unreasonable operations such as user discrimination, platform selection, traffic monopoly, and bidding ranking. Going back to the above example of planting a tree in someone else's yard, the tree is yours, but others enjoy the shade under the tree and the fruits it produces are enjoyed by others.

Based on the above analysis, only a decentralized model can effectively solve the problem of separation of data ownership and disposal rights, and currently the best decentralized technology is the blockchain.

Blockchain solutions:

Build an e-commerce platform based on blockchain technology. We name this platform "E-commerce Alliance Chain", hereinafter referred to as " Alliance Chain".

Each merchant is connected to the alliance chain as a node, and each customer is connected to the alliance chain as a node. The product information sold by merchants is published on the alliance chain as shared data, and all connected customer nodes can see and browse this information. When a customer decides to purchase a product, the purchase information including product, model, address, etc. is passed to the merchant through the alliance chain. In this process, each merchant records the transaction information of the customers who transact with it. For transaction information that has nothing to do with itself (other merchants and customers), only the characteristic value (hash value) of the information is recorded; Each customer also records his own transaction information, and only records characteristic values for information that has nothing to do with him.

The purpose of a node recording transaction characteristic values that have nothing to do with itself is to prevent the transaction information on the alliance chain from being tampered with. When one or both parties to a transaction tamper with the transaction information, the characteristic value of the transaction will change. Then, as long as it is compared with the characteristic value recorded by nodes unrelated to the transaction, the tampering will be discovered by the alliance chain.

In e-commerceOn the alliance chain, there is no centralized node. All nodes are equal. Each node only records its own relevant transaction data. There is no way to save the transaction data of non-related nodes. Using the example of tree planting, each family plants trees in their own yards and cannot let others plant trees in their own yards. Nodes can decide how they want to process their own data. They only need to reach a data processing consensus with the node on the other side of the transaction.

In this way, the e-commerce alliance chain based on blockchain technology truly realizes the unification of data ownership and disposal rights, which is real ownership.

At this point, some people may say that useful services such as customized recommendations and product rankings for some product information are still needed. If the data is scattered in the hands of the owners, then this cannot be achieved. A useful data feature. It doesn't matter, you just need a third-party organization specialized in data analysis to connect to the alliance chain. Merchant nodes and customer nodes are responsible for authorizing the use rights of their own data to third-party data analysis nodes, and agreeing on the specifications for data use through the smart contract technology of the blockchain. The data analysis institutions analyze transactions within the scope of authorization of the use rights. data and provide data services required by other nodes.

In the digital age, data is an important means of production, so it is critical to clearly define the ownership of data. The centralized model will deprive the majority of data producers of their means of production and turn them into essentially proletarians. This is unreasonable. Through blockchain technology, data ownership can be returned to data producers, making production relations in the digital era more reasonable. This is the way forward.