De-centralization consensus method and system based on proof of time and block chain system

Abstract

The invention provides a de-centralization consensus method based on proof of time. The method comprises the following steps that within the time 0-t1, a plurality of users sign time certification data containing a current timestamp by utilizing private keys, and peer nodes where the users belong receive signatures; within the time t1-t2, each peer node selects the best signature in the signaturesreceived by the peer node, packages the signature into a signature data block and carries out broadcasting, after the peer node receives the broadcasted signature, the received signature is comparedwith the best known signature of the peer node, if the received signature is better, the best known signature is replaced and broadcasted, and lastly, all peer nodes select the unique best signature of the whole network; and within the time t2-T, the peer node where the best signature belongs packages a to-be-recorded block and carries out broadcasting, and other nodes pass the verification and accept the to-be-recorded block. According to the de-centralization consensus method and system based on the proof of time and the block chain system, the defects of Byzantium fault tolerance, proof ofwork, proof of stake, proof of delegation stake and other existing consensus methods and the block chains thereof are solved, and the effects of fairness, high efficiency, energy conservation and usability are achieved.

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 hash difficulty calculation is mathematically non-unique, which leads to the need 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 the Proof of Work with the Proof of Shareholders’ Stake to reach a 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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