区块链原始币4元6元是什么,区块链原始币4元6块

区块链原始币4元6块，是指一种基于区块链技术的数字货币，它们的价值在于其独特的去中心化特性，可以让用户在网络上进行安全、有效、快速的转移和交易。

去中心化：去中心化是指不存在一个中心化的控制机构，也就是没有一个机构可以控制这种数字货币的发行和流通。去中心化的特性使得区块链原始币可以在任何地方使用，而且不受任何国家、组织或个人的管控。

安全性：区块链原始币的安全性是它的一大优势。它基于区块链技术，使用公钥和私钥的加密技术，每一笔交易都需要经过多个网络节点的确认，保证交易的安全性，而且数据不可篡改，保证了用户的资金安全。

流通性：区块链原始币的流通性也是它的一大优势，它可以在任何地方使用，而且不受任何国家、组织或个人的管控，可以在全球范围内迅速流通，方便快捷，使得用户可以轻松地在全球范围内进行货币交易。

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⑴ A newbie wants to join the blockchain but doesn’t know how to play. There are too many choices. Please recommend!

I remember that EOS was 2 or 3 yuan before. I recommended it to my friends. They didn’t believe it and didn’t buy it. Now EOS has increased so much that my friend fainted in the toilet crying, hahahahaha, but the price is too high. I don’t recommend it either, because the quantity you can buy is too small, it can only be regarded as a small leek. If I recommend it, I am optimistic about the SEC social e-commerce chain recently, and you can invest in CoinDan. The price is relatively low now. I read their road map. , should be launched soon. I personally think it has great potential and is more suitable for long-term value investment. It depends on whether you can buy it. This kind of currency has a price but no market~

⑵ Blockchain-What is Blockchain Jindian News can understand the blockchain

Blockchain - What is the blockchain? Can Jindian Coin News understand the blockchain?

Block Pioneer animation video helps you understand what is blockchain, easy to understand

What is blockchain, does Maobei belong to blockchain?

Answer: Maobei does not belong to the blockchain, but uses blockchain technology. The characteristic of the blockchain is that everything that happens will be recorded and cannot be deleted or changed.

Blockchain, what is a block

Comprehensive interpretation of blockchain

When talking about blockchain, people always compare it with Bitcoin. On October 31, 2008, a person named "Satoshi Nakamoto" sent an email to a cryptography email group, claiming, "I have been working on a new electronic cash system, which is completely peer-to-peer and does not require Any trusted third party.” He launched a new system using Bitcoin as the transaction currency.

What is blockchain technology? What is blockchain?

Blockchain is a distributed shared accounting technology. What it wants to do is to allow all parties involved to establish a trust relationship at the technical level.

Blockchain can be roughly divided into two levels, one is the underlying technology of the blockchain; the other is the upper-layer application of the blockchain, that is, based on the transformation of the blockchain, Optimize or innovate applications.

What is the core meaning of blockchain? Our understanding is that the core meaning of blockchain is to establish data credit among participants, and to create a single transaction under clear regulations through unilateral confrontation. The ecology of all aspects jointly guarantees complete opportunities. This is a system. This establishment can end the problems before the blockchain. Before the blockchain, it was impossible to achieve new sharing when data was shared, even if it was targeted. It just gives you an interface. After the blockchain is established, the participants can realize the sharing of credit.

What are the underlying platforms of blockchain?

Answer: There are mainly the following categories:

1. Bitcoin. The earliest blockchain development was based on the Bitcoin blockchain network. Since Bitcoin is the most widely used and truly decentralized in the world, in terms of blockchain applications, Bitcoin is the most widely used blockchain in the world. A strong anchor with the largestauthoritative.

2. Ethereum. It can be said that apart from Bitcoin, Ethereum is currently the most eye-catching blockchain platform. Ethereum is a Turing-complete blockchain one-stop development platform that uses multiple programming languages ​​to implement protocols. It uses a client written in Go language as the default client (i.e., the method of interacting with the Ethereum network, and supports many other language client).

3. IBM HyperLedger. Also called fabric, its goal is to build a super ledger that is jointly maintained by the whole society. Fabric originated from IBM. Its original intention was to serve industrial production. IBM open sourced 44,000 lines of code, which is a great contribution and allows us to have The opportunity is so close to explore the principles of blockchain that are different from Bitcoin.

4. LISK. It is a new generation of blockchain platform that allows the development of JavaScript (Javascript technology again, engineers, take note) and distribution-based decentralized applications using an easy-to-use, full-featured ecological blockchain system.

5. Online recording blockchain platform. It is the research and development result of the underlying technology of the Wanglu blockchain and a basic platform capable of commercial delivery. In addition to serving the Wanglu public chain, the Wanglu blockchain platform is also the basic platform for Wanglu to create private chains and alliance chains for customers.

What is blockchain? What is blockchain for digital currencies?

In a narrow sense, blockchain is a chain data structure that combines data blocks in a sequential manner in chronological order, and is cryptographically guaranteed to be non-tamperable and non-forgeable. Ledger. Broadly speaking, blockchain technology uses block chain data structures to verify and store data, uses distributed node consensus algorithms to generate and update data, uses cryptography to ensure the security of data transmission and access, and uses automated scripts to A new distributed infrastructure and computing paradigm that uses smart contracts composed of code to program and manipulate data.
Nowadays, mainstream digital currencies are basically developed based on blockchain technology. Blockchain is the underlying technology of digital currency. The domestic tea-based digital currency Puyin was developed based on blockchain technology.

What is blockchain

The essence of blockchain is a decentralized accounting system, and Bitcoin is the currency that "exists in digital form" carried on this system. Blockchain is a system behind Bitcoin that consists of credit records and the settlement of credit records.

Blockchain is a new application model of computer technologies such as distributed data storage, point-to-point transmission, consensus mechanism, and encryption algorithm. The so-called consensus mechanism is a mathematical algorithm that establishes trust and obtains rights and interests between different nodes in the blockchain system [1].
Blockchain is an important concept of Bitcoin. Huobi.com and Tsinghua University WudaokouThe "2014-2016 Global Bitcoin Development Research Report" released by the Internet Finance Laboratory of the School of Finance and Sina Technology mentioned that blockchain 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, which is used to verify the validity of its information (anti-counterfeiting) and generate the next block< br /> The evolution of blockchain is:
▪ Blockchain 1.0 - digital currency
▪ Blockchain 2.0 - digital assets and smart contracts
▪ Blockchain 3.0— —IFMChain, blockchain officially linked to mobile terminals

⑶ What is blockchain mining and what does it do? Detailed introduction to blockchain and virtual currency

When Bitcoin was first released People have discovered that it is decentralized and not subject to any central control; it is completely open, except for the encryption of transaction information, the entire system information is highly transparent, and the technology is open source; security, as long as %51 of all nodes cannot be controlled, The data cannot be modified arbitrarily, which makes it relatively safe; independence, the entire model and Bitcoin do not rely on any third party, all nodes verify and exchange data within the system without any intervention

We detail here Explain what blockchain technology is. To put it bluntly, it is block + chain. So what is "block"? What is a "chain" again?

A block is a ledger. Transaction accounting is completed by multiple nodes distributed in different places, and each node records a complete account, so they can all participate in supervising the legality of the transaction, and at the same time Can jointly testify for it

Each block contains the cryptographic hash of the previous block, the corresponding timestamp, and the transaction data (usually a hash value calculated using the Merkle tree algorithm) represents), this design makes the block content difficult to tamper with. Distributed ledgers connected by blockchain technology can effectively record transactions between two parties and permanently verify the transactions.

The function of the hash function h(): convert a string of any length into a fixed-length (for example, 256 bits) output. The output is also called a hash value. This output is irreversible

It is difficult to find two different x and y such that h(x) = h(y), that is, two different inputs, There will be different output. Theoretically, two different inputs may have different outputs, but this is almost impossible. For example, if an infinite space is mapped to a finite space, there must be a many-to-one situation. The theory exists, but there are no rules. It is guaranteed that you cannot find this result through any mathematical inference, why is it 256 here?Where's the bit? Isn't it longer? Because 256 bits are secure enough.

Split the ledger into blocks. For example, a piece of paper in a book is a block. Each block records transactions within a period of time, such as 10 minutes.

We divide Each piece of paper is compared to a block. A part of content is added to each block. We call it a block header, which records the hash value of the parent block. Each block stores the hash value of the parent block. , connect all blocks smoothly to form a blockchain

Record the hash value of block 1 to the block header of block 2. In this way, the block header of each block is recorded The hash value of the parent block, each block is linked in order, this is called a blockchain. The first block has no block header and is also called the genesis block

The blockchain is a ledger. Only when transactions occur in the ledger will the money in your account increase. If you need to make a transaction, you first need an account number and password. Just like your bank card has an account number and password, others can make a transfer to you. The account password on the block ledger is the public key and private key

Lao Wang (who already has a private key and a public key) wants to transfer 10 BTC to Zhang, which requires some operations

It is proved that Lao Wang himself issued the transfer signature function Sign (Lao Wang’s private key + Transfer information: Lao Wang transferred 10 BTC to Zhang San) = signature of this special account
The verification is that Lao Wang himself issued the transfer verification function Verify (Lao Wang’s address + Transfer details: Lao Wang transferred 10 BTC to Zhang San) + Signature of this transfer) = true
Once the transfer is recorded in the block, no one can change it. Zhang San will increase it by 10 BTC, and Lao Wang will decrease it by 10 BTC accordingly. The entire operation is automatic, such as your wallet The app will help you do this. The app knows your private key, you tell the wallet the transaction content, the wallet signature is announced to the entire network, and it waits for others to verify the transaction

Centralized accounting The efficiency will be higher. Banks, governments or Alipay will keep accounts for you, which is very reliable, because they can't touch your money unless they have your private key

There are some disadvantages in centralized accounting< /p>

In decentralization, everyone can keep accounts, and everyone can keep a complete ledger. Anyone can download open source programs, participate in Bitcoin's p2p network, monitor transactions sent from all over the world, become an accounting node, and participate in accounting. Suppose Xiaoyi releases a transaction and broadcasts it to the entire network, and accounting node A listens. When this transaction arrives, A verifies that the transaction bit is true and puts it into the transaction pool to continue to spread to other nodes. Because it is spread through the network, the transaction pools of different accounting nodes are not necessarily the same at the same time. Every 10 minutes, from all accounting nodes Among the nodes, according to a certainmethod to select one, and after verifying that the transaction of this node is true, then compare the transaction records in the transaction pool of this selected node with the transaction records in the transaction pool of your own (A) node. After the comparison, you will add your own transaction pool The transactions recorded by the selected accounting node are deleted, and the other accounting nodes continue to record without moving and wait for the next selection. There is a cycle every 10 minutes. During this 10 minutes, all accounting nodes record accounts normally, and then select again after 10 minutes. A node takes the transactions in its transaction pool as a new block. This block comes from the transaction pool of an accounting node I randomly selected among all the accounting nodes, and this cycle continues

Transactions It is not completed when it is recorded. Only when the transaction becomes a certain block, the transaction is truly completed. This is a complete accounting process of decentralization. Your transaction will not be recorded immediately because the p2p network propagation takes time. If the node of the selected block has not received your transaction, the transaction will be not done. A block is generated every 10 minutes, but not all transactions within 10 minutes can be recorded. 10 minutes is just an average value

Due to the characteristics of decentralized accounting, accounting nodes with accounting rights will receive a 50BTC reward every ten minutes, which is about the same for every 210,000 blocks. In 4 years, the reward is halved. Bitcoin has been halved twice since its issuance. Then a new block is generated every ten minutes. The reward for this accounting node is 10.5 BTC. If it is halved every 4 years, the total number of BTC can be calculated. The amount is approximately 21 million, and it is expected to be mined in 2040. Recording the reward of a block is also the only way to issue Bitcoin. When BTC is mined, the only income that the accounting node can obtain is the transaction fee

Accounting nodes compete for accounting rights through questions,

Find a certain random number that makes the equation invalid
SHA256 hash function (random number + parent block hash value + Transactions in the transaction pool) A certain specified value)
There is no other solution except traversing the random numbers starting from 0 and trying luck. The process of solving the problem is also called mining, so the accounting node that solves this problem is also called mining. It’s called a miner. The faster you traverse random numbers, the greater the possibility of getting the accounting rights. This traversal speed is called computing power by mine bosses. In order to obtain this computing power, mine bosses will Purchase more mining machines with higher computing power

Whoever solves the problem correctly first will get the accounting rights. Accounting node A is the first to find the solution, which is announced to the entire network. After other nodes verify that it is correct, node A obtains the block, gains 12.5 BTC, and restarts a new round of calculation after the new block. This method is called (POW) allocating accounting rights

It usually takes about 10 minutes to solve this random number. 10 is not absolute because the process of solving this problem is inherently complex.It's just a process of luck. In response to changes in computing power in the future, Bitcoin will increase or decrease the difficulty every 2016 blocks, about two weeks, so that the average block generation time is ten minutes

< p> Each block contains the encrypted hash of the previous block, the corresponding timestamp, and transaction data (usually represented by a hash value calculated by the Merkle tree algorithm). This design makes the block content It is difficult to tamper with. Distributed ledgers connected by blockchain technology can effectively record transactions between two parties and permanently verify the transactions.

Different from traditional stored data, each node of the blockchain stores complete data according to the block chain structure. Each node of the blockchain is independent and has equal status, relying on The consensus mechanism ensures storage consistency, while traditional distributed storage generally synchronizes data to other backup nodes through a central node.

Mahjong is a traditional Chinese blockchain project. A group of four miners work together. The miner who first collides with the correct hash value of 13 numbers can obtain the accounting rights and be rewarded.

Many people say that blockchain is a scam and Bitcoin is a scam. This may be a scam, but this technology has been widely recognized and applied. The cryptography knowledge involved in blockchain can only be used by ordinary people. Even if you don’t understand it, the most important thing is to look at the problem from a relatively rational perspective. Don’t let the wind be the rain.

There is something incredible about this technology. It maintains absolute order without a center or supervision. This is the trust that only needs to be established by everyone’s consensus. Bitcoin created this consensus. In the blockchain In the world everyone is fair and equal.

⑷ What is blockchain is not that Bitcoin evolves slowly, but that we evolve slowly

Since the word blockchain was abstracted from Bitcoin, the entire There is a peculiar ideological narrative pervading the industry. The narrative goes like this: Bitcoin is a slow and old broken carriage that has not seen any improvement in more than ten years and has no cool features. Of course, from the perspective of the natural nature of human beings, who says such rubbish to you, is definitely not someone who is too full to make trouble, but will usually see the big pie in your hand (BTC). ) becomes dubious and takes the opportunity to sell you the popular sports car project he is selling.

At 13:15:27 pm on November 14th, Beijing time, with the block height 709632 being mined, it was one of the most important upgrades of Bitcoin since the Segregated Witness upgrade in 2017. , Taproot was upgraded and successfully activated (in June this year, more than 90% of the miners voted to lock-in, so this activation is a clear sign).

This block contains chainsiA V1_P2TR deal from de co-founder Federico Tenga. In this transaction, Federico appended a sentence to OP_RETURNDATA: gm taproot. It is believed to be the first Taproot transaction in history. In order to grab this ranking, Federico paid a mining fee (handling fee) of 2510 sat/vB, which is about 500 times the normal mining fee (less than 10 sat/vB). [1]

Taproot upgrade brings us many benefits such as block expansion, better privacy, and enhanced scalability. These benefits are primarily due to the introduction of two technologies. One is the Schnorr signature, and the other is MAST (Merkelized abstract syntax tree).

Schnorr signatures can compress the size of digital signatures. A single signature saves about 12% of the size compared to ECDSA, which can also save transfer fees. In addition, it can compress multi-signatures into one signature, which can greatly compress the size of multi-signature addresses and protect the privacy of multi-signature participants. It is said that Mike Hearn proposed a similar idea on the bitcointalk forum as early as 2012. By compressing the signature size, it is equivalent to expanding the block capacity to accommodate more transactions.

MAST can greatly improve the transaction size, privacy and flexibility of P2SH transactions. The earliest BIP-114 proposal was proposed by Johnson Lau in 2016. Earlier P2SH transactions could allow payments to be made without revealing the script (Bitcoin script code). However, when UTXO (unspent transaction output) is spent, a script needs to be provided and recorded on the chain, thus occupying the capacity of the blockchain. If the script is more complex, it will take up more space. The introduction of MAST allows us to organize complex scripts containing many conditions into Merkle trees. When spending UTXO, you only need to reveal the Merkle proof and the script involved, not the entire tree. This saves block capacity and improves script privacy. At the same time, since the script size limit is opened, this introduces greater scalability and flexibility to Bitcoin's programmability.

It should be said that the above paragraphs are tantamount to bible to some friends who only speculate in coins on centralized exchanges and do not even understand private keys. Not to mention Taproot, it was segwit (Segregated Witness) 4 years ago, which many people in the so-called circle didn’t know what it was. There is nothing shameful about this. The first time I saw these new technologies and new terms, my head exploded. The more you study, the more you research, the more you ponder, the more you will understand.

Compared to the advancement of technology, our ability to master knowledge has evolved too slowly. To this day, many people still don’t understandWhether the Bitcoin is stored in the wallet on his mobile phone or on the Bitcoin network. What is the function of the wallet software on your mobile phone or computer? What is the private key, what is the mnemonic phrase, and what is the so-called HD wallet. What are the differences between addresses starting with 1, addresses starting with 3, addresses starting with 5, and addresses starting with bc1. How to take the big pie out of the exchange and put it on the so-called chain. How to control your own Bitcoin. How to sign to transfer Bitcoin. How to use Segwit address. And now, how to build a Taproot transaction?

Some people then said that it would be better not to let users have their own private keys and stay away from these technical details. Return to the managed environment and the centralized user experience of the Internet. Such an improvement in user experience, just like centralized exchanges, comes at the expense of users' independent control of assets. This directly abandons all the values ​​​​since decentralization. Is this an evolution or a regression?

If it is just to invent a gimmick for speculators to speculate and gamble, then you can ignore these things. Then not only should the size of OP_RETURN not be limited, but the script should even be expanded to support Turing-complete programming. In this way, various air coins and doge coins can be issued on Bitcoin, and various applications born for speculation can be developed, creating a so-called prosperous ecosystem. But along the way, Bitcoin seems to have taken the opposite path. Not only did it greatly limit the functionality of the script from the beginning, but it also actively shortened the data size of OP_RETURN, limiting the possibility of doing various tricks on the Bitcoin chain.

Bitcoin is prudent. It knows it has a larger mission. The activation of Taproot may be beneficial to the development of the second floor. However, it does not bring self-limiting problems to the first layer. On the contrary, it will expand the capacity of one layer by compressing the data size.

Bitcoin is patient. It has the historical mission of popularizing decentralized digital currencies instead of speculating on centralized platforms. So it has to wait patiently and wait for everyone to keep up with the pace of technological development.