Proof of work (PoW) certification method in blockchain network and blockchain

Abstract

The invention is applicable to the technical field of computers, and provides a PoW certification method in a blockchain network and a blockchain, the PoW certification method comprises the followingsteps: acquiring a hash value of a previous block; according to the numerical value of the hash value of the previous block and a corresponding relationship between the numerical value and a hash algorithm, determining the sequence of the hash algorithm; sequentially carrying out hash calculation on blocks consisting of a random value and the transaction information to be packaged according to thethe sequence of a hash algorithm to generate hash values; and replacing the random value, repeating the previous steps until the hash value meets the PoW certification requirement, and broadcasting the block to other nodes for verification. According to the PoW method provided by the invention, the sequence of the hash algorithm is linked with the numerical value of the previous block, so that ahash algorithm used by the blockchain decentralization method each time is a random sequence, and a CPU and a GPU can better adapt to the random sequence, so that the advantages of ASIC in computing power are offset, and the distributed idea of blockchain decentralization is maintained.

Description

technical field [0001] The invention belongs to the technical field of computers, and in particular relates to a workload proof method in a block chain network and a block chain. Background technique [0002] The greatest value of blockchain lies in "decentralization". All transaction information in the blockchain network for a period of time is packaged into blocks and synchronized to all nodes, thus ensuring that transaction information cannot be tampered with. And who will package the transaction information is realized by using the Proof-of-Work (PoW) mechanism in the blockchain network, which requires all nodes in the blockchain network to follow the preset The workload proof method is used to calculate, and the node that gets the result first has the right to package the transaction information and receive rewards. [0003] The most commonly used existing blockchain is to use the SHA256 algorithm twice to prove the workload. Specifically, the block composed of at lea...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the embodiments of the present invention is to provide a proof-of-work method in a blockchain network and a blockchain, aiming at solving the problem that the existing proof-of-work method in a blockchain is easy to be monopolized by ASIC, The existing blockchain gradually deviates from the technical problem of "decentralized" distributed thinking

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