Blockchain for database services

1.

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 information of bitcoin network transactions, Used to verify the validity of its information (anti-counterfeiting) and generate the next block

extended data

most blockchain public chains are limited by scalability. The biggest feature of blockchain technology is decentralization, which requires that all accounts in the network need to deal with the accounting process. Distributed accounting has high security, low misoperation rate, political neutrality and correctness

however, blockchain technology embraces these features at the same time, sacrificing scalability, unable to meet the personalized supervision, and slightly insufficient in protecting data privacy. Moreover, with the increase of the number of ledger, the interaction delay will increase exponentially, that is to say, the more ledger in the blockchain network, the higher the delay

2. Chongqing jinwowo: as for how to build a rigorous database, the method of blockchain is to innovate the structure of the database, divide the data into different blocks, link each block to the back of the previous block through specific information, and present a complete set of data in sequence, which is also the source of the three words "blockchain".

3. That's ten times the survival rate he set. If you lose one, you'll get ten. It's set in the game

4. This scoring trading platform has servers, wallets,
blockchain,
and the price is not expensive. Hundreds or thousands of yuan are OK

5. The five elements are about Yin and Yang, eight trigrams, Qimen, tunjia, heaven, earth, people, gods and ghosts. In general, it refers to gold, wood, water, fire and earth.

6. No

bitcoin trading platform has many running platforms, such as mtgox in Japan, bitcoin in China and so on
therefore, investors need to choose a reliable bitcoin trading platform. The reference factors are: 1. The longer the running time, the better; 2. The bigger the instry reputation, the better; 3. The larger the team size, the better; 4. Being able to visit<

it is suggested that China choose "fire coin net", which is cooperated by Wukou School of finance of Tsinghua University. Sequoia Capital has invested 10 million US dollars; The choice of coinbase in foreign countries is an important choice for Silicon Valley banks to invest.

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8. Blockchain is actually a distributed database. The contents stored in each block are equivalent to the tables in the database. The differences between blockchain and traditional distributed database are as follows:
(1) participants can join freely without permission; (2) the contents of the database are open to all participants; (3) all the previous transaction data, that is, the logs of the database, will never be deleted; (4) highly rendant and reliable; (5) inefficient, requiring multiple confirmations, in order to think that the transaction is really completed
in the future, jinwowo will be based on the instrial layout, We will apply blockchain, an emerging technology, to all sectors of the society to promote big data to serve the society better and more efficiently.