English of blockchain
blockchain is a digital account book that can be jointly bookkept, and will record all transactions that have occurred and have been unanimously recognized by the system it's the same as the whole family. You're bookkeeping, and your father and mother are also bookkeeping. They can see the general ledger, but the saved information can't be tampered with any more
In 2008, Nakamoto first proposed the concept of blockchain subsequently, blockchain has become the core component of electronic currency bitcoin, which serves as the public account book for all transactions. By using peer-to-peer network and distributed timestamp server, the blockchain database can be managed independentlyextended data:
type of blockchain
1, public blockchain
any indivial or group in the world can send transactions, and transactions can be effectively confirmed by the blockchain, and anyone can participate in its consensus process. Public blockchain is the earliest and the most widely used blockchain. The virtual digital currencies of bitcoin series are all based on public blockchain. There is only one blockchain corresponding to this currency in the world
2, Alliance (instry) blockchain
instry blockchain: multiple preselected nodes are designated as bookkeepers within a group, and the generation of each block is jointly determined by all preselected nodes (preselected nodes participate in the consensus process), and other access nodes can participate in the transaction, However, regardless of the bookkeeping process (in essence, it is still managed bookkeeping, only distributed bookkeeping, how many preselected nodes, and how to determine the bookkeeper of each block to become the main risk point of the blockchain), anyone else can conct limited query through the open API of the blockchain
3, private blockchain
only uses the general ledger technology of blockchain for bookkeeping. It can be a company or an indivial, and enjoys the write permission of the blockchain. This blockchain is not very different from other distributed storage schemes
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blockchain related applications include digital currency crowdfunding platform, coin Ying China, and asset custody system developed by China Post Based on blockchain technology.
blockchain
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Ping An insurance company of China is short for Ping An
Ping An insurance (Group) Company of China Ltd is the English full name of Ping An insurance (Group) Company of China Ltd. It was born in Shekou, Shenzhen in 1988. It is the first joint-stock insurance company in China and has developed into an integrated, close and diversified comprehensive financial service group integrating financial insurance, banking, investment and other financial businesses 
extended information:
development process
in September 2018, Ping An insurance (Group) Co., Ltd. of China signed a strategic cooperation agreement with Huaxia Xingfu Jiye Co., Ltd., and the two sides will become strategic cooperative enterprises to strengthen cooperation in new instrial towns, comprehensive financial services and emerging instries
in March 2019, Ping An insurance group of China (Ping An of China) and singularitynet, a decentralized artificial intelligence (AI) start-up based on Ethereum (ETH), reached a cooperation. The cooperation between the two sides will first focus on optical character recognition (OCR), computer vision (CV) and model training
blockchain related applications include digital currency crowdfunding platform, coin Ying China, and asset custody system developed by China Post Based on blockchain technology.