What is blockchain?

Blockchain is an accounting technology that is jointly maintained by many parties, uses cryptography to ensure transmission and access security, and can achieve consistent storage of data, difficult to tamper with, and prevent repudiation. It is also known as distributed ledger technology. What's so special? What technological revolution has blockchain brought about?

1. Evolve from centralized bookkeeping to distributed bookkeeping to avoid complex multi-party reconciliation process and ensure tamper-proof and consistency of data.

2. From "add, delete, change and check" to only "add and check", the two operations subvert the four classic operations of traditional database, and form a reliable data set that is difficult to tamper with with the "blockchain" structure + timestamp technology.

3. From single-party maintenance to multi-party maintenance, multiple parties need to verify data and reach a consensus before deciding which data can be written.

4. From the plug-in contract to the built-in contract, the information flow and capital flow can be integrated into the built-in contract through the independent execution and collaborative writing of the code based on the pre-agreed rules. What does bitcoin have to do with blockchain? Is it equivalent? Blockchain is not the same as bitcoin.

Blockchain is the underlying technology and infrastructure of Bitcoin, while Bitcoin is an application of blockchain. Virtual currencies such as Bitcoin should be clearly distinguished from blockchain technology.

In what scenarios can blockchain technology be used?

E-ticket: birth certificate, ID card, marriage certificate, real estate certificate, business license and other certificates can be stored through block chain, which can help realize the electronization of certificates and licenses. In the future, you don't need to go out with all kinds of cards, certificates and tickets, but can easily prove "I am me" by brushing your face with technology.

Smart government: Through blockchain technology, authorized connection and access of information systems of relevant departments can be realized to promote the realization of smart government. Identity confirmation and submission and uploading of all information at the counter can complete all subsequent procedures.

Food safety: consumers can easily understand the "past life" of food by scanning the code. Detection and supervision nodes are added in the whole process to ensure that information can not be tampered with and traceability can be monitored to improve enterprise awareness and ensure food safety.

Anti-counterfeiting of goods: traceability nodes will be arranged in the whole process and multiple nodes of goods, combined with label anti-counterfeiting technology, to ensure that only consumers can query the traceability information of goods, prevent fake goods, and ensure the quality of goods.

Medical and health: the whole process of drug and vaccine manufacturers, channel providers, pharmacies, hospitals, cold chain logistics, CDC, consumers and other links can be connected, so that their sources can be traced, records can be trusted, responsibility can be traced, to help provide reassuring medical services.

Fintech: Business participants form alliance chains to realize efficient information synchronization, automatic confirmation of business processes, transparent management of asset information, etc., and effectively improve the business efficiency of all parties.

Transaction depositing: Internet transaction synchronously carries out blockchain depositing, all orders, contracts and bills are stored on the chain and synchronized with other trusted institutions to protect the interests of all parties to the transaction.

Copyright protection: when the copyright is formed, the blockchain certificate can be actively stored to mark the time of copyright formation with time stamps. Once the infringement is found later, the blockchain certificate can be used as important evidence to help protect rights.

If your enterprise is faced with the following situation, you can consider using blockchain to help you fix ha! The database needs to be upgraded. It is difficult to establish digital mutual trust and the business model needs to be reconstructed