There are several NFT blockchain protocols

1.

blockchain includes public blockchain, joint (instry) blockchain and private blockchain. Public chain point-to-point e-cash system: bitcoin, smart contract and decentralized application platform: Ethereum

blockchain is a new application mode of distributed data storage, point-to-point transmission, consensus mechanism, encryption algorithm and other computer technologies

blockchain is an important concept of bitcoin. In essence, it is a decentralized database. At the same time, as the underlying technology of bitcoin, it is a series of data blocks generated by using cryptographic methods. Each data block contains a batch of bitcoin network transaction information, Used to verify the validity of its information (anti-counterfeiting) and generate the next block

extended data

according to the different degree of blockchain network centralization, three kinds of blockchains under different application scenarios are differentiated:

1. The blockchain with the whole network open and without user authorization mechanism is called public chain

2. The authorized nodes are allowed to join the network, and the information can be viewed according to the authority. It is often used in the inter agency blockchain, which is called alliance chain or instry chain

3. All the nodes in the network are in the hands of one organization, which is called private chain

alliance chain and private chain are also called licensing chain, and public chain is called non licensing chain

blockchain features

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

2. Openness. Blockchain technology is based on open source. In addition to the private information of all parties involved in the transaction is encrypted, the data of blockchain is open to everyone. Anyone can query blockchain data and develop related applications through the open interface, so the information of the whole system is highly transparent

3. Independence. Based on consensus specifications and Protocols (similar to various mathematical algorithms such as hash algorithm used by bitcoin), the whole blockchain system does not rely on other third parties, and all nodes can automatically and safely verify and exchange data in the system without any human intervention

4. Safety. As long as 51% of all data nodes cannot be controlled, the network data cannot be arbitrarily manipulated and modified, which makes the blockchain itself relatively safe and avoids subjective and artificial data changes

5. Anonymity. Unless there are legal requirements, technically speaking, the identity information of each block node does not need to be disclosed or verified, and the information can be transferred anonymously

2. A protocol is a set of rules for managing a network. Blockchain protocol usually includes rules of consensus, transaction verification and network participation. Agreements often rely on economic incentives - which means they depend on an asset
generally, protocol level assets can also be used as local procts of the protocol (no platform required!) Bitcoin is a good example. Bitcoin (capital B) refers to the agreement. The agreement depends on the local asset: bitcoin (small b). This local asset is also used as the end proct: it's the user's means of payment, the store of value, and (to be honest) a degree of hype. Please note that bitcoin does not really provide a platform. It's not very friendly for developers trying to build new procts on it< On the other hand, Ethereum has three levels. It's an agreement that provides the basic rules. This is a platform that enables developers to build new procts on the system. Moreover, because its agreement contains a local asset, it also gets a built-in proct (in the form of ether)
the application fields of blockchain include digital currency, token, finance, anti-counterfeiting traceability, privacy protection, supply chain, entertainment, etc. with the popularity of blockchain and bitcoin, many related top domain names have been registered, which has a great impact on the domain name instry.

3. A new resolution initiated by representative Adam kinzinger, a Republican from Indiana, has been submitted to the US House of Representatives, calling on the government to formulate national policies on emerging technologies, including digital currency and blockchain technology
the resolution calls on the idea of bitcoin, but does not directly mention its name. Instead, it calls it "alternative illegal currency". Blockchain technology is the key point, which points out that this technology has the potential to "fundamentally change" the way trust and security are built on online transactions
but in fact, the United States has not taken action to formulate this rule. However, there is a global blockchain alliance R3 in the process of formulating the standard for the use of blockchain. Of course, blockchain is just a technology that can be used by any enterprise. In China, there is a project called decent, which is more avant-garde. It uses blockchain technology to build a decentralized content publishing platform, but it may encounter some problems in China.

4. A: verification mode, certification mode, please adopt in time, welcome to ask, wish learning progress! thank you!

5. Don't know what
non trumpet can't be found
not included

6. Chongqing
jinwowo
analysis
the essence of blockchain
technology is as follows:
blockchain is essentially a value based on P2P
transmission protocol
, we can not only see P2P, but not value transmission
similarly, we can not only see the value transmission, but also the underlying technology of blockchain.

7. The analysis of jinwowo network technology is as follows:
1 - consensus mechanism
2 - distributed data
3 - cryptography technology
4 - Smart contract
5 - authentication access
6 - node management, etc.

8. At present, there are some well-known protocols, such as ox, kyber and looping.

9. The problem is very simple. In WiFi mode, the machine of three dad air purifiers will automatically calculate the filter life according to your accumulated service time and operating environment, and remind you to replace it in time