Features of blockchain technology
Decentralization: Block data is stored in all computers that join the system, and each of them can be a server.
High reliability: Because it is decentralized and based on a peer-to-peer network, as long as there is a computer in the blockchain network working normally, the service will not be interrupted, so it is highly reliable.
Security: Mainly reflected in distributed, 51% attacks, even if 49% of the nodes are attacked or down, it will not affect the operation of the network.
Trustless: All nodes in the system can conduct transactions without trust, because the operation of the database and the entire system is open and transparent. Within the rules and time frame of the system, nodes cannot deceive each other. Blockchain is actually The product of mathematical methods to solve the trust problem.
Collective maintenance: The system is jointly maintained by all nodes with maintenance functions, and everyone in the system participates in the maintenance work.
Cannot be tampered with: The data after unanimous submission will always exist and can hardly be destroyed or modified.
Traceability: The record of any period in the blockchain can be traced.
Reliable database: Every node in the system has the latest complete database copy. Modifying the database of a single node is invalid because the system will automatically compare and consider the same data record that appears most frequently to be true.
Data transparency: The entire network shares the ledger, and each node can store a complete and consistent ledger of historical transaction records that occurred across the entire network.
Cryptography technology: Hash algorithm, asymmetric encryption, digital signature, digital certificate and other cryptographic technologies are used in the blockchain.
Open source source code: The consensus mechanism and rules set in the blockchain network can be verified through consistent, open source source code.
Decentralization: Block data is stored in all computers that join the system, and each of them can be a server.
High reliability: Because it is decentralized and based on a peer-to-peer network, as long as there is a computer in the blockchain network working normally, the service will not be interrupted, so it is highly reliable.
Security: Mainly reflected in distributed, 51% attacks, even if 49% of the nodes are attacked or down, it will not affect the operation of the network.
Trustless: All nodes in the system can conduct transactions without trust, because the operation of the database and the entire system is open and transparent. Within the rules and time frame of the system, nodes cannot deceive each other. Blockchain is actually The product of mathematical methods to solve the trust problem.
Collective maintenance: The system is jointly maintained by all nodes with maintenance functions, and everyone in the system participates in the maintenance work.
Cannot be tampered with: The data after unanimous submission will always exist and can hardly be destroyed or modified.
Traceability: The record of any period in the blockchain can be traced.
Reliable database: Every node in the system has the latest complete database copy. Modifying the database of a single node is invalid because the system will automatically compare and consider the same data record that appears most frequently to be true.
Data transparency: The entire network shares the ledger, and each node can store a complete and consistent ledger of historical transaction records that occurred across the entire network.
Cryptography technology: Hash algorithm, asymmetric encryption, digital signature, digital certificate and other cryptographic technologies are used in the blockchain.
Open source source code: The consensus mechanism and rules set in the blockchain network can be verified through consistent, open source source code.