WTC digital currency
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. Eth: smart contract and e-cash
3. BCH: Clone of bitcoin
4. XRP: enterprise transfer network
5. LTC: faster version of bitcoin
6. Dash: Clone of bitcoin with stronger privacy
7. Neo: Chinese version of Ethereum
8. NEM: Xinjing movement digital assets
9. XmR: anonymous digital cash
10 Etc: Ethereum clone
11, iota: Internet of things transfer
12, qtum: smart contract
13, OMG: banking, remittance, exchange
14, Zec: anonymous digital cash
15, BCC: Madoff like investment fund
16, lisk: distributed app written in Java
17, ADA: layered digital cash and smart contract
18, tether: US $1
19 XLM: IOU of digital cash
20, EOS: distributed app on webassembly
21, HSR: blockchain switch
22, waves: distributed exchange and crowdfunding
23, stratis: distributed app in C language
24, KMD: distributed ICO
25, ark: blockchain switch
26, ETN: cloned Monroe coin
27, BCN: anonymous digital cash
28 Steem: reddit voting with token
29, ardr: can generate the master chain of blockchain
30, BNB: compensate the transaction fee of coin security
31, augur: distributed forecast market
32, ppt: Bill financial system of blockchain
33, DCR: bitcoin with independent management mechanism
34, pay: digital currency payment card
35, Maid: rent hard disk space
36 Bitcoin disk: Clone XZC
37, BTS: distributed exchange
38, GNT: renting computer computing power
39, pivx: Clone dash without inflation
40, gas: payment of Neo transfer fee
41, TRX: payment within app
42, VTC: Clone bitcoin
43, Mona: Japanese dogcoin
44, FCT: distributed data record
45 Bat: distributed advertising network
46, salt: digital currency based mortgage network
47, KNC: distributed exchange
48, Doge: cute bitcoin clone
49, DGD: Gold digital monetization managed by the company
50, WTC: Internet of things blockchain
51, jiuzhuang bcbot