Complexity of blockchain certificate storage technology

Blockchain technology has been used in many instries, to give a few simple examples:

1. Jingdong Logistics creates a blockchain traceability platform with one click traceability

2. blockchain technology applies e-bills to view all medical bills with one click

4. Shenzhen took the lead in launching the online loan voting system by using the block chain system deposit technology

5. Wal Mart joined the blockchain alliance mediledger to trace the source of drugs
   

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more applications of blockchain technology can be found in cryptography< br />

A: application fields of blockchain technology

I. financial field

blockchain has great potential application value in international exchange, letter of credit, equity registration, stock exchange and other financial fields

blockchain can also be naturally combined in the field of Internet of things and logistics

through the blockchain, we can rece the logistics cost, trace the proction and transportation process of goods, and improve the efficiency of supply chain management

blockchain is highly reliable and tamperable, which is naturally suitable for social public welfare scenarios

In order to meet the growing demand for litigation services of the people in the process of regional collaborative development between Sichuan and Chongqing, our blockchain certificate keeping technology will play a series of roles such as certificate keeping, authentication and evidence collection in cross domain case filing, petition joint control, online litigation, joint conference and other cooperation between Sichuan and Chongqing, making long-distance and contactless cooperation more standardized, convenient and efficient. To provide assistance for Sichuan Chongqing high court to achieve inclusive, equal, convenient, efficient, intelligent and accurate litigation services

this paper briefly introces the application of blockchain evidence storage -- "real hammer" trusted electronic evidence platform

Real hammer "trusted electronic evidence platform, through cooperation with forensic authentication institutions, notary offices, arbitration institutions, Internet courts, etc., realizes the storage, retrieval and issuance of evidence on the chain, and reces the cost of electronic data evidence preservation, It is convenient for electronic data collection and evidence identification, and improves the litigation efficiency in the field of judicial evidence preservation

at present, the evidence traceability mode of "real hammer" trusted electronic evidence platform has been recognized by many courts in Beijing, Xiamen, Guangzhou and Shenzhen, and some banks and state-owned enterprises have begun to use "real hammer" trusted electronic evidence platform

Blockchain is a new application mode of distributed data storage, point-to-point transmission, consensus mechanism, encryption algorithm and other computer technologies

in a narrow sense, blockchain is a kind of chained data structure composed of data blocks connected in sequence according to the time sequence, and it can not be tampered with and forged by cryptography

it is an important feature of electronic contract system, which can not be tampered with and forged, and effectively improve the security of electronic contract

in 2016, we, together with Microsoft (China) and onchain, jointly launched the establishment of "French chain", which deeply integrates electronic contract and blockchain technology. Digital fingerprint information such as signing time, signing subject and file hash value of electronic contract will be broadcast to the respective nodes of all members of "French chain". Once all the information is stored, no party can tamper with it, so as to realize the anti tampering of electronic evidence and ensure its objective authenticity

We mainly apply blockchain technology to the field of electronic data distributed storage, including contract storage, e-mail storage, file storage, structured data storage, etc

the specific forms of electronic evidence in judicial practice are becoming more and more diversified, and the frequency and amount of electronic data are increasing significantly. Different types of electronic evidence have different forms of formation, but they are easy to die out, easy to tamper with, and highly dependent on technology. Compared with traditional physical evidence, it is more difficult to determine the authenticity, legitimacy, and relevance of electronic evidence through judicial review

in the whole life cycle of the generation, collection, transmission and storage of electronic data, blockchain technology can be used to protect electronic data, prevent tampering, and leave traces of data operation, so as to provide effective means for relevant institutions to review. Using blockchain technology to preserve electronic evidence, the electronic data that needs to be preserved is recorded in the form of transaction, stamped with time stamp, and recorded in the block, so as to complete the process of data preservation and preservation. In the process of data storage, multiple participant nodes witness together and maintain a distributed ledger, which greatly reces the possibility of data loss, tampering and attack. The combination of blockchain and electronic data storage can rece the cost of electronic data storage, facilitate electronic data collection and evidence identification, and improve the litigation efficiency in the field of judicial storage

The unique characteristics of blockchain technology, such as non tampering, non repudiation and multi-party participation, are naturally consistent with the requirements of electronic data storage. Electronic data storage is an important application field of potential blockchain technology

in the face of the growing demand for electronic data, the traditional way of certificate keeping graally shows some shortcomings, such as high cost, low efficiency and difficulty in obtaining information. In addition, in judicial practice, the parties generally lack the ability to adce evidence, the quality of electronic evidence submitted to the court is poor, there are a large number of improper evidence collection proceres, incomplete evidence, poor directivity to the facts of the case and other problems, which directly affect the proportion of electronic evidence in litigation

the combination of blockchain and electronic data storage can rece the cost of electronic data storage, facilitate the evidence identification of electronic data, and improve the litigation efficiency in the field of judicial storage

therefore, we have been committed to integrating blockchain technology into procts to provide users with financial level security: for example, through the joint establishment of a judicial deposit chain with multiple parties (including forensic identification center), we can realize the permanent solidification and preservation of decentralized evidence, and simplify the process of traditional evidence collection and issuance. That is to use the distributed blockchain storage technology to ensure that the contract evidence is not tampered