To put it simply, blockchain is a decentralized distributed ledger database. Block chain technology is essentially a database technology. Each block is like a hard disk, saving all the information and encrypting it by cryptography. This saved information cannot be tampered with.
Li Wei, director of the Science and Technology Department of the Central Bank, said at the first Bund Financial Summit on the 28th that blockchain, as an important emerging technology, has great potential to promote the innovation and development of the digital economy. It is necessary to deeply study blockchain technology, promote the deep integration of blockchain and real economy, and solve the problems of financing difficulties for small and medium-sized enterprises, difficult bank risk control and difficult departmental supervision. The digital transformation of commercial banks should also attach great importance to the application of blockchain technology, develop application scenarios according to the technical characteristics, strengthen innovation, establish safety and guarantee system, and ensure safe and orderly development.
The creator put the work on the blockchain. Someone used his work, and he knew it right away. The corresponding royalties will also be automatically paid to the creator. Blockchain technology not only protects copyright, but also helps creators sell works to consumers better and more directly.
Blockchain can make payment and transaction more efficient and convenient. Blockchain platforms allow users to create smart contracts that become active when certain conditions are met. This means that automatic payments can be released when the parties agree to meet their conditions.
Block chain is an important concept of Bitcoin. Huo coin, in conjunction with the Internet Finance Laboratory of Wudaokou Institute of Finance, Tsinghua University, and the 2014 / 2016 Global Bitcoin Development Research report released by Sina Technology, mentioned that block chain is the underlying technology and infrastructure of Bitcoin. It is essentially a decentralized database and serves as the underlying technology of Bitcoin. Block chain is a series of data blocks associated with cryptography, each of which contains the information of a bitcoin network transaction, which is used to verify the validity of its information and generate the next block.
4. No third party is required for the transaction
In a narrow sense, block chain is a kind of chain data structure, which combines the data blocks sequentially according to the chronological order, and guarantees the untampered and unfalsified distributed account books by cryptography. In a broad sense, blockchain technology is a new distributed infrastructure and computing paradigm, which uses block chain data structure to verify and store data, uses distributed node consensus algorithm to generate and update data, uses cryptography to ensure the security of data transmission and access, and uses intelligent contracts composed of automated script code to program and operate.
What is the impact of blockchain on future life?
If you buy an apple, under blockchain technology, you can know the whole process from fruit farmer production to circulation. Among them, there are government regulatory information, professional testing data, enterprise quality inspection data and so on.
What exactly is a block chain?
1. There is no need for cumbersome personal proof
An example is given to illustrate the bit of block chain technology. You have a ledger in your family, and you keep it all by yourself. Mom and Dad give you your salary and you write it down in the ledger. In case you are gluttonous and want to buy something delicious, the records in the ledger may be less than ten yuan. After using blockchain technology, it is equivalent to the way of family mobilization. You're keeping accounts, dad's keeping accounts, mom's keeping accounts, and they can all see the general ledger. You can't change, neither can Mom and Dad. In other words, blockchain, a distributed digital book, records all transactions that have occurred and have been systematically approved. Each block is a ledger.
According to the 2018 White Paper on Block chain Industry in China, by the end of March 2018, the number of companies with blockchain business as the main business in China had reached 456. in 2014, there were only 76 companies.
5. The source of the commodity can be traced back
(picture source:搜狗图片)
The simple theory is to use the block chain to establish a time-stamped universal record storage library, so as to achieve the purpose of extracting data information from different databases. For example, when you go to a doctor, you don't have to go to a hospital for repeated checks, and you don't have to do it repeatedly for reimbursement of medical insurance, save time and cost.
3. Travel consumption is more convenient
6. Copyright protection is more effective
We often use some apps to find the hotel and other services, and each platform gets a commission from it. The application of block chain is to remove the middlemen and create a secure and decentralized way for service providers and customers to achieve the purpose of directly connecting and trading.
2. Avoid repeated examination.
It turns out that our birth certificate, real estate certificate, marriage certificate and so on, once transnational, may be invalid. The untampered nature of blockchain fundamentally changes this situation. Birth certificate, real estate certificate and marriage certificate can all be notarized on the blockchain and become something trusted by the whole world.
