1. Definition
Block chain is a distributed the database , with a decentralized, can not be tampered with, full marks to stay, can be traced, collective defense, transparency and so on.
2. Application field
Finance, Internet of Things, insurance, public welfare, public services, etc.
In 2008, Satoshi Nakamoto first proposed the concept of blockchain.
3. Core technology:
Distributed ledger
Distributed ledger means that transaction accounting is completed by multiple nodes distributed in different places, and each node records a complete account, which is independent and has the same status. It relies on a consensus mechanism to ensure storage consistency. Therefore, they can all participate in the supervision of the legality of the transaction, and at the same time they can jointly testify for it
Asymmetric encryption
The transaction information stored on the blockchain is public, but the account identity information is highly encrypted and can only be accessed under the authorization of the data owner, thus ensuring data security and personal privacy
Consensus mechanism
The consensus mechanism is how to reach a consensus between all bookkeeping nodes to determine the validity of a record. This is not only a means of identification, but also a means of preventing tampering.
The consensus mechanism of the blockchain has the characteristics of "the minority obeys the majority" and "everyone is equal"
Smart contract
Smart contracts are based on these credible and immutable data, which can automatically execute some pre-defined rules and terms.
4. What problem does the blockchain solve
Trust issues
5. Disadvantages of blockchain
The most insurmountable shortcoming of the blockchain 1: efficiency issues
The most insurmountable shortcoming of Bitcoin 2: The adaptability of macro finance
Bitcoin’s most insurmountable shortcoming 3: security caused by anonymity
Bitcoin's most insurmountable shortcoming 4: user ease of use
6. Laws and regulations
The State Internet Information Office issued the "Regulations on the Management of Blockchain Information Services" on January 10, 2019, which will come into force on February 15, 2019.
7. Block structure
Head: Record the meta-information of the current block. Body: Actual data
1. Definition
Block chain is a distributed the database , with a decentralized, can not be tampered with, full marks to stay, can be traced, collective defense, transparency and so on.
2. Application field
Finance, Internet of Things, insurance, public welfare, public services, etc.
In 2008, Satoshi Nakamoto first proposed the concept of blockchain.
3. Core technology:
Distributed ledger
Distributed ledger means that transaction accounting is completed by multiple nodes distributed in different places, and each node records a complete account, which is independent and has the same status. It relies on a consensus mechanism to ensure storage consistency. Therefore, they can all participate in the supervision of the legality of the transaction, and at the same time they can jointly testify for it
Asymmetric encryption
The transaction information stored on the blockchain is public, but the account identity information is highly encrypted and can only be accessed under the authorization of the data owner, thus ensuring data security and personal privacy
Consensus mechanism
The consensus mechanism is how to reach a consensus between all bookkeeping nodes to determine the validity of a record. This is not only a means of identification, but also a means of preventing tampering.
The consensus mechanism of the blockchain has the characteristics of "the minority obeys the majority" and "everyone is equal"
Smart contract
Smart contracts are based on these credible and immutable data, which can automatically execute some pre-defined rules and terms.
4. What problem does the blockchain solve
Trust issues
5. Disadvantages of blockchain
The most insurmountable shortcoming of the blockchain 1: efficiency issues
The most insurmountable shortcoming of Bitcoin 2: The adaptability of macro finance
Bitcoin’s most insurmountable shortcoming 3: security caused by anonymity
Bitcoin's most insurmountable shortcoming 4: user ease of use
6. Laws and regulations
The State Internet Information Office issued the "Regulations on the Management of Blockchain Information Services" on January 10, 2019, which will come into force on February 15, 2019.
7. Block structure
Head: Record the meta-information of the current block. Body: Actual data
8. Success example: Antchain
The number of global patent applications on the AntChain has remained at No. 1 each year for four consecutive years; in application, the AntChain has helped solve the trust problem of more than 50 actual scenarios; in business, the AntChain currently has more than one “chain volume” every day 100 million times.
8. Success example: Antchain
The number of global patent applications on the AntChain has remained at No. 1 each year for four consecutive years; in application, the AntChain has helped solve the trust problem of more than 50 actual scenarios; in business, the AntChain currently has more than one “chain volume” every day 100 million times.