Electronic evidence collection and service method based on block chain

Abstract

The invention discloses an electronic evidence collection and service method based on a block chain. The method comprises the following steps: a demand node issues an electronic evidence demand through a smart contract; a collection node creates an evidence record, that is, firstly collects original data related to the demand, packages the original data into a non-tamperable evidence record in real time and records the evidence record in a block chain network in real time for broadcasting; a bookkeeping node writes the evidence record into a block according to a consensus mechanism; a servicenode screens the evidence record from the block and forms electronic evidence according to the terms of the smart contract, and activates the smart contract; and the smart contract pays the service node and submits a node reward of the corresponding original record according to payment terms. The method disclosed by the invention has a good application prospect in the application field of independent investigation and evidence collection (such as on-site evidence collection of vehicle insurance) and trusted third party evidence collection (for example, investigation reports of housing vacancyrates).

Description

Technical field [0001] The present invention relates to blockchain and electronic data creation technology, in particular to a blockchain-based electronic evidence collection and service method. Background technique [0002] High-credibility electronic evidence is playing an increasingly important role in modern society, especially in the fields related to social safety, food safety and production safety, and in the application fields that require credible third-party evidence collection, electronic evidence is important Social and economic value. Most of the published electronic evidence collection and preservation methods are to perform Hash digests on the electronic evidence that has been formed to prevent the corresponding evidence from being tampered with. However, the authenticity and validity of the original evidence source cannot be guaranteed, and the system's private key cannot be eliminated. The possibility of misappropriating and tampering with electronic evidence; i...

AI Technical Summary

Problems solved by technology

Most of the published electronic evidence collection and preservation methods are Hash abstracts for the already formed electronic evidence to prevent the corresponding evidence from being tampered with, but it cannot ensure the authenticity and validity of the original evidence source, nor can it eliminate the system private key The possibility of stealing and tampering with electronic evidence; in addition, electronic data is usually uploaded to the central server for storage, which cannot eliminate the possibility of being tampered with or even completely destroyed

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