区块链平台搭建技术有哪些,区块链平台搭建技术要求

区块链技术的平台搭建，是近几年技术发展的一大趋势。它涉及到多个技术领域，以及区块链本身的应用。本文将介绍区块链平台搭建技术所涉及到的三个关键词：区块链网络架构、智能合约和共识机制。

区块链网络架构是指区块链系统的网络架构，它是区块链技术的基础，是构建区块链系统的重要组成部分。区块链网络架构分为公链网络架构、联盟链网络架构和私链网络架构三种。公链网络架构是指全球公开的网络架构，任何人都可以参与，节点可以自由加入和离开；联盟链网络架构是指由特定机构或企业组成的网络架构，节点数量有限，只有特定机构或企业才能加入；私链网络架构是指由特定企业或机构组成的网络架构，节点数量有限，只有特定企业或机构才能加入。

智能合约是指在区块链系统中运行的一种特殊程序，它可以自动执行合同条款，也可以作为一种自动执行的规则，以实现交易的自动化。智能合约可以帮助区块链系统实现自动执行，减少人工干预，从而提高效率、降低成本。智能合约可以实现数据的可信存储、自动执行、资产的去中心化管理等功能，可以替代传统的合同和法律程序，从而极大地改善了交易的效率。

共识机制是指在区块链系统中用来验证交易信息的一种机制，它可以确保交易的可靠性和安全性。共识机制有多种，其中最常用的是工作量证明机制（Proof of Work）和权益证明机制（Proof of Stake）。工作量证明机制是指节点需要解决一个计算难题，以证明自己的身份，从而获得交易的权利；权益证明机制是指节点需要抵押一定数量的资产，以证明自己的身份，从而获得交易的权利。共识机制可以确保交易的可靠性和安全性，同时也可以防止恶意攻击，确保系统的稳定性。

以上就是区块链平台搭建技术所涉及到的三个关键词：区块链网络架构、智能合约和共识机制的介绍。这些技术的发展为区块链技术提供了基础，可以帮助我们更好地利用区块链技术，实现更多的应用。

⑴ How to build a blockchain website

Websites are no longer mysterious and no longer a high-tech job. Ordinary users can also easily build relatively professional websites. Let me briefly introduce to you some procedures and precautions for building a personal website.
1. Domain Name
If you want people to visit your website, a domain name is essential. The domain name should be as short as possible and as easy to remember as possible, such as the .top domain name. Of course, there are not many domain names that are easy to remember and have characteristics. You need to consider this yourself, as long as you feel that there is a certain pattern or it is easy for users to remember. That’s it.
2. Space
To build a website, you must have a space, which is a place to store the website. For individual users, it is recommended to purchase a virtual host. When purchasing a web host, look at its service, speed, response time, etc. Generally, you can choose a service provider with a certain reputation.
Note: Domain name and space are currently good choices for domestic service providers such as Alibaba Cloud, Western Digital, and China Data.
3. Website program
Of course, the website program should be ready-made, because there is no need for individuals to compile a website program from scratch, and they do not have the ability. Nowadays, there are ready-made website management systems on the Internet. There are many such systems. You can choose based on your own comprehensive trial.
When choosing a website program, its versatility and secondary development must also be taken into consideration. For those that are not very versatile and are not conducive to the second phase of development, although they are powerful, they are not recommended because it will be very troublesome when the website needs to be designed with personalized functions after it reaches a certain scale. In addition, try to choose asp (asp.net) for programs. PHP, JSP, etc. are not particularly popular in China. Try to choose asp.net between asp and asp.net. After all, it is based on the .net architecture and is the development trend.
4. Website Design
After selecting the website program, you need to design the website according to your own needs. Generally speaking, it is best if there are professional artists and programmers to make modifications. However, individual webmasters may not necessarily have this condition and can choose intelligent website building from service providers.

⑵ Blockchain digital currency exchange platform construction solution

Digital cash exchanges are the focus of competition in the financial field. Having a good digital currency exchange will help you compete among peers. There are great advantages. The market of digital cash exchanges is a global market, and it is involved in global transaction business hosting platforms. Digital cash exchanges have different customization needs and different functions due to different data. Good digital cash The exchange platform has rich functions, secure and powerful performance, and is differentiated among similar products. Blockchain digital asset exchange technology development

The unique interface of digital cash exchanges can provide customers with convenient means of fund transfer , such as fast recharge, currency withdrawal, currency recharge, etc. It can also support a variety of transaction methods, currency transactions, legal currency transactions, and market transactions.Foreign trading, etc.

1. Off-site exchanges: Off-site exchanges are also called OTC trading markets. This is a place with no fixed place, no fixed rules and regulations, and no prescribed trading products. Users trade in off-site exchanges. Achieving two-way transactions, transactions are very free. Like other blockchain applications, there is no unified trading system and mechanism for remote exchanges

2. Currency transactions: Currency transactions, as the name suggests, are digital currencies and digital currencies. Transactions between each other use currency as the evaluation unit to purchase other currencies, and are intermediary in order of price priority and time priority.

3. French currency transaction: French currency transaction can be said to be the most direct way. Digital cash What is the target price of Qingtan Stool? The direct purchase transaction by users with fiat currency is a French currency exchange. The disadvantage of French currency exchange is that the currencies that can be purchased are limited. For encrypted currency types, it is necessary to purchase other types of currencies and exchange them through currency transactions.

Since the digital asset exchange is targeting the global market, its language richness is very important. The digital asset exchange not only supports the development of multiple currencies, but also supports the customized development of multiple functional modules, and also supports the development of languages ​​in various countries.

The functions of the blockchain digital asset exchange will not stop here. With the upgrade of technology in the future, new and better functions will also appear. Similarly, functional requirements also promote technology upgrades.

⑶ How to build a blockchain trading system

First of all, blockchain combines a variety of technologies, including computing, economics, cryptography, etc., and combines these disciplines as a blockchain base.

Secondly, combine the blockchain with the corresponding network, and thenUse mathematical knowledge to establish blockchain relationships. This makes the blockchain a system that can operate independently.

The blockchain transaction system has been transformed from the original single central system control into a flexible social circulation, allowing resources in any field to circulate here and improving work efficiency.

Blockchain digital assets are built on various network platforms. These platforms involve multiple asset fields, including issuers, traders, exchanges, circulation channels and other institutions.

⑷ What technologies are needed to build an NFT platform

If you want to build an NFT platform, you need to master the following technologies: 1 Blockchain technology: To build an NFT platform, you need to master a kind of negotiation Rent blockchain technology in order to build on this technologyCreate NFT digital assets. There are currently a variety of blockchain technologies on the market, such as Ethereum, EOS, TRON, etc. You can choose the appropriate technology based on the specific circumstances of your project.
2Web development skills: Building an NFT platform requires mastering certain web development skills in order to develop the front-end and back-end systems of the project. You need to be proficient in web development languages ​​such as HTML, CSS, and JavaScript.
3 Therefore, my personal suggestion is that it is better to use Xitai NFTsaas directly to build it. This is low-cost, and you only need to do a good job in operations. Technical maintenance and other issues can be solved by the Hanzhao platform.

⑸ How to build the main body of the project for blockchain

When it comes to offshore companies, they usually choose to register in the archipelago. Some domestic giants, such as Alibaba, Tengxu, Shanda Network, Xiaomi, Haidilao, etc., have established overseas IPO structures by registering offshore companies in the archipelago.

Advantages of registering offshore companies in the islands:

1. Complete tax exemption (only a small annual management fee is charged)

2. Company information is kept confidential ( High degree of confidentiality)

3. Overseas IPO structure (domestic giants such as Tencent and Xiaomi have established overseas IPO structures by registering offshore companies)

4. Freedom of naming ( Chinese can be added)

5. No foreign exchange control

6. No specific business scope, as long as it does not engage in illegal and criminal activities or industries that require franchising.

2. The Singapore non-profit foundation can later issue relevant legal opinions to ensure legal compliance and prove that the company's operations are in compliance with Singapore's current laws.

The main contents of the legal opinion:

1. White paper modification: Modify the project white paper where it does not comply with Singapore laws and regulations, and a lawyer will issue a professional legal compliance opinion.

2. TOKEN non-securitization certificate: A lawyer issues a professional legal opinion detailing that the tokens issued by the project do not have the nature of securities.

⑹ What are the core blockchain technologies of blockchain technology?

What is the hottest Internet topic at the moment? You don’t need to explain it to the editor to know that it is the blockchain. Blockchain technology, but many friends have only heard of this technology and do not have much in-depth understanding of it. So what are the blockchain technologies? Below we will bring you an introduction to the core technology of blockchain for your reference.
What are the core elements of blockchain technology?
Blockchain technology can be a public ledger (visible by anyone) or a permissioned network (visible only by those authorized), which solves supply chain challenges , because it is an immutable record that is shared among network participants and updated in real time.
Blockchain technology----data layer: designing the data structure of the ledger
Core technology 1. Block + chain:
Technically speaking, a block is a data structure that records transactions, reflecting the flow of funds for a transaction. The blocks of transactions that have been reached in the system are connected together to form a main chain, and all nodes participating in the calculation record the main chain or part of the main chain.
Each block consists of a block header and a block body. The block body is only responsible for recording all transaction information in the previous period, mainly including the number of transactions and transaction details; the block header encapsulates the current version number, previous A block address, timestamp (recording the time when the block was generated, accurate to the second), random number (recording the value of decrypting the answer to the math question related to the block), the target hash value of the current block, and the Merkle number Root value and other information. From a structural point of view, most functions of the blockchain are implemented by the block header.
Core technology 2. Hash function:
The hash function can convert data of any length into a set of fixed-length codes through the Hash algorithm. The principle is based on a cryptographic one-way hash function. This kind of function is easy to verify, but difficult to crack. Usually, the industry uses y=hash(x) to represent it. This hash function implements operations on x to calculate a hash value y.
Commonly used hash algorithms include MD5, SHA-1, SHA-256, SHA-384 and SHA-512, etc. Taking the SHA256 algorithm as an example, inputting any string of data into SHA256 will result in a 256-bit Hash value (hash value). Its characteristics: the same data input will get the same result. As long as the input data changes slightly (for example, a 1 becomes a 0), a completely different result will be obtained, and the result cannot be predicted in advance. Forward calculation (calculating the corresponding Hash value from the data) is very easy. Reverse calculation (cracking) is extremely difficult and is considered impossible under current technological conditions.
Core technology 3. Merkle tree:
Merkle tree is a hash binary tree, which can be used to quickly verify the integrity of large-scale data. In the blockchain network, the Merkle tree is used to summarize all transaction information in a block, and ultimately generates a unified hash value of all transaction information in the block. Any change in transaction information in the block will cause Merkle tree changes.
Core technology 4. Asymmetric encryption algorithm:
Asymmetric encryption algorithm is a key secret method that requires two keys: public key and private key. The public key and the private key are a pair. If the public key is used to encrypt data, only the corresponding private key can be used to decrypt it, thereby obtaining the corresponding data value; if the private key is used to sign the data, then only the corresponding public key can be used to sign the data. In order to verify the signature, the sender of the verification information is the holder of the private key.
Because encryption and decryption use two different keys, this algorithm is called an asymmetric encryption algorithm, while symmetric encryption uses the same key in the encryption and decryption processes.
Blockchain technology----network layer: realizing the decentralization of accounting nodes
Core technology5. P2P network:
P2P network (peer-to-peer network), also known as point-to-point technology, is an Internet system that does not have a central server and relies on user groups to exchange information. Unlike a centralized network system with a central server, each client in a peer-to-peer network acts as both a node and a server. Domestic Xunlei software uses P2P technology. The P2P network has the characteristics of decentralization and robustness.
Blockchain technology----Consensus layer: allocate the task load of accounting nodes
Core technology 6. Consensus mechanism:
Consensus mechanism is how to reach consensus among all accounting nodes to identify The validity of a record is both a means of identification and a means of preventing tampering. There are currently four main types of consensus mechanisms: PoW, PoS, DPoS and distributed consensus algorithms.
PoW (Proof of Work, proof of work): PoW mechanism, which is like Bitcoin’s mining mechanism, miners package existing transactions that have not been recorded by the network into a block, and then continue to traverse and try to find a random number , so that the hash value of the new block plus the random number meets certain difficulty conditions. Finding a random number that meets the conditions is equivalent to determining the latest block of the blockchain, and is also equivalent to obtaining the current round of accounting rights of the blockchain. Miners broadcast blocks that meet the mining difficulty conditions in the Yuanfu network. After verifying that the block meets the mining difficulty conditions and that the transaction data in the block meets the protocol specifications, other nodes in the entire network will each Blocks are linked to their own version of the blockchain, thereby forming a network-wide consensus on the current network state.
PoS (ProofofStake, Proof of Stake): PoS mechanism requires nodes to provide proof of a certain number of tokens to obtain a distributed consensus mechanism for competing for blockchain accounting rights. If you rely solely on the token balance to determine the bookkeeper, you will inevitably make the rich win, which will lead to the centralization of bookkeeping rights and reduce the fairness of the consensus. Therefore, different PoS mechanisms use different methods to increase the amount of money based on the proof of equity. The randomness of accounting rights avoids centralization. For example, in the PeerCoin PoS mechanism, the Bitcoin with the longest chain age has a greater chance of obtaining accounting rights. NXT and Blackcoin use a formula to predict the next accounting node. The more tokens you own, the greater the probability of being selected as an accounting node. In the future, Ethereum will also switch from the current PoW mechanism to a PoS mechanism. Judging from the information currently available, Ethereum's PoS mechanism will use nodes to place bets on the next block. The winner of the bet will receive an additional Ethereum currency award. Those who do not win will be deducted Ether coins to reach consensus on the next block.
DPoS (DelegatedProof-Of-Stake, share authorization certificate): DPoS is easy to understand and is similar to the modern corporate board of directors system. The DPoS mechanism adopted by BitShares is that shareholders vote to select a certain number of witnesses. Each witness has two seconds of authority to generate blocks in sequence. IfIf a witness cannot generate a block in a given time slice, the block generation authority is given to the witness corresponding to the next time slice. Shareholders can replace these witnesses at any time by voting. This design of DPoS makes the generation of blocks faster and more energy-saving.
Distributed Consistency Algorithm: Distributed Consistency Algorithm is based on traditional distributed consistency technology. Among them are Byzantine fault-tolerant algorithms that solve the Byzantine Generals problem, such as PBFT (Byzantine fault-tolerant algorithm). In addition, distributed consensus algorithms (Pasox, Raft) that solve non-Byzantine problems are not explained in this article. This type of algorithm is currently a commonly used consensus mechanism in alliance chain and private chain scenarios.
Taken together, POW is suitable for public chains. If you build a private chain, it is more suitable to use POS because there is no trust problem in verification nodes; and because there are untrustworthy local nodes in the alliance chain, it is more suitable to use DPOS.
Blockchain technology----Incentive layer: Develop a "salary system" for accounting nodes
Core technology 7. Issuance mechanism and incentive mechanism:
Take Bitcoin as an example. Bitcoins are initially rewarded by the system to miners who create new blocks, and this reward is halved approximately every four years. At the beginning, miners were rewarded with 50 Bitcoins for each new block recorded, and this reward is halved approximately every four years. By analogy, by around AD 2140, newly created blocks will no longer receive rewards from the system. By then, the total number of Bitcoins will be approximately 21 million. This is the total number of Bitcoins, so it will not increase indefinitely.
Another source of incentives is transaction fees. When there are no system rewards for newly created blocks, the miners' income will change from system rewards to transaction fees. For example, when you transfer, you can specify 1% of it as a handling fee to be paid to the miner who records the block. If the output value of a transaction is less than the input value, the difference is the transaction fee, which will be added to the incentive for that block. As long as a given amount of electronic currency has entered circulation, the incentive mechanism can gradually be converted to rely entirely on transaction fees, so there is no need to issue new currency.
Blockchain technology----contract layer: giving the ledger programmable features
Core technology 8. Smart contract:
Smart contract is a set of programmed rules and logic that respond to scenarios. Implemented by decentralized, trusted shared script code deployed on the blockchain. Normally, after the smart contract is signed by all parties, it is attached to the blockchain data in the form of program code, and is recorded in a specific block of the blockchain after being propagated through the P2P network and verified by nodes. Smart contracts encapsulate a number of predefined states and transition rules, scenarios that trigger contract execution, response actions under specific scenarios, etc. The blockchain can monitor the status of smart contracts in real time, and activate and execute the contract by checking external data sources and confirming that specific trigger conditions are met.
The above is what blockchain technologies the editor has brought to you? All content introduced to the core technology of blockchain.