Basic principles of blockchain technology
The basic principles of blockchain technology are decentralization, non-tamperability, transparency and consensus mechanism. It is implemented through components such as distributed ledgers, blockchains, nodes, consensus algorithms, and encryption technologies, ensuring the advantages of security, transparency, efficiency, and traceability.
Basic principles of blockchain technology
Blockchain is a distributed ledger technology, and its basic principles are as follows:
Decentralization:
Blockchain data is stored in multiple computer nodes on a central server rather than on a central server. Every node has a complete copy of the blockchain.
Immutability:
Once data is added to the blockchain, it is difficult to change it. Each block contains the hash of the previous block, forming an immutable chain.
Transparency:
All transaction records are open and transparent on the blockchain and can be viewed and verified by anyone.
Consensus Mechanism:
Nodes use a consensus mechanism to verify transactions and reach consensus. The most common consensus mechanisms are Proof of Work (PoW) and Proof of Stake (PoS).
Basic components:
- Block: A collection of records containing transaction data and metadata.
- Blockchain: A chain composed of interconnected blocks.
- Node: The computer system that maintains and verifies the blockchain.
- Consensus Algorithm: The rules used to verify transactions and achieve consensus.
- Encryption technology: used to ensure the security and non-tamperability of the blockchain.
How it works:
- The node receives a transaction.
- The node adds the transaction to a new block.
- Nodes use the consensus mechanism to verify blocks.
- After verification, the block is added to the blockchain.
- All nodes update their copy of the blockchain.
Benefits:
- Security: Decentralization and immutability provide high security.
- Transparency: Transaction records are open and transparent, helping to build trust.
- Efficiency: Eliminating the middleman makes transactions more efficient.
- Traceability: Every transaction can be traced back to its origin.
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