Decentralized consensus method, system and blockchain system based on time proof

Abstract

The decentralized consensus method based on time proof provided by the present invention includes that several users use their private keys to sign the time proof data containing the current time stamp within the time period from 0 to t1, and the peer nodes to which the users belong receive the signature; During ~t2 time, each peer node selects the best signature among the signatures it receives and packs it into a signature data block and broadcasts it. After receiving the broadcasted signature, the peer node follows the best signature known to the peer node For comparison, if the received signature is better, it replaces the known best signature and broadcasts it. Finally, all peer nodes select a unique best signature in the whole network; Wait for the node to package the data block to be recorded and broadcast it, and other nodes verify and accept the data block to be recorded. The invention solves the defects of existing consensus methods such as Byzantine fault tolerance, proof of work, proof of equity, and proof of entrusted equity, as well as the blockchain, and achieves the effects of fairness, high efficiency, energy saving, and ease of use.

Description

technical field [0001] The present invention relates to the technical field of block chains, in particular to a decentralized consensus method, system and block chain system based on time proof. Background technique [0002] In a narrow sense, blockchain is a chained data structure composed of data blocks connected by irreversible hash IDs, which guarantees the security of non-tampering and non-forgery in a cryptographic way; in a broad sense, In other words, blockchain uses hash block chain data structure to verify and store data, uses distributed node consensus algorithm to generate and update data, uses cryptography to ensure data security, and uses intelligence composed of automated script codes. A new distributed infrastructure and data generation method for programming and manipulating data through contracts. [0003] The essence of blockchain is a new application model based on computer technologies such as distributed data storage, point-to-point transmission, conse...

AI Technical Summary

Problems solved by technology

However, proof of work (POW) also has very significant defects. The workload proved by the hash difficulty calculation is not unique in mathematics, so it is necessary to artificially set a rather slow block production speed to avoid frequent consensus points. It also caused miners to launch a computing power arms race to compete for the benefits of bookkeeping, resulting in a huge waste of power resources; and finally led to the centralization of computing power, shaking the foundation of decentralization and fairness, resulting in 51% computing power risk of attack

[0004] In 2012, Sunny King and Scott Nadal proposed the proof-of-stake (POS) consensus mechanism, which replaces proof-of-work with proof-of-stakeholders to achieve consensus. The process does not need to consume huge computing power resources, and solves the problems of computing power competition, waste of electricity, and 51% attacks in the Proof of Work (POW) consensus mechanism, but there are also high-stake nodes being maliciously abused, and the Stake Proof algorithm can be predicted Bringing hidden dangers to the system, opening only to shareholders and closing to the outside world, etc., is called the "chaebol governance" model

Since the number of nodes with the right to bookkeeping is greatly reduced, the speed of consensus can be greatly improved, but there are also problems such as artificial manipulation of votes, malicious conspiracy of delegations, and centralization.

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