BLOCKCHAIN-BASED RECONCILIATION METHOD, APPARATUS, AND SYSTEM

    公开(公告)号:EP4451196A1

    公开(公告)日:2024-10-23

    申请号:EP22906586.7

    申请日:2022-12-14

    IPC分类号: G06Q40/04 G06Q40/12

    摘要: Disclosed in the disclosure are a reconciliation method, apparatus and system based on a blockchain, relating to the technical field of blockchains. A specific embodiment of the method includes: acquiring a batch hash value corresponding to a reconciliation batch transaction record fed onto the blockchain by an institution to be reconciled and a batch hash value corresponding to a reconciliation batch transaction record fed onto the blockchain by a transaction reconciliation platform respectively; performing first comparison on the batch hash values; notifying the institution and the transaction reconciliation platform to feed shard hash values corresponding to the reconciliation batch transaction record under the condition that a result of the first comparison shows inconsistence; acquiring an inconsistent shard by performing second comparison on the shard hash values; notifying the institution and the transaction reconciliation platform to feed record hash values onto the blockchain; acquiring an inconsistent transaction record by performing third comparison on the record hash values; and notifying the institution and the transaction reconciliation platform of the inconsistent transaction record. According to the embodiment, a storage space of a blockchain can be saved; reconciliation efficiency is greatly improved, and a reconciliation result cannot be tampered with; and the problem of data privacy on a chain is solved.

    FILE SHARING METHOD, APPARATUS, AND SYSTEM
    2.
    发明公开

    公开(公告)号:EP4180985A1

    公开(公告)日:2023-05-17

    申请号:EP21854512.7

    申请日:2021-08-04

    IPC分类号: G06F16/176

    摘要: A file sharing method, apparatus, and system, mainly relate to the technical field of computers. The method comprises: obtaining a file to be shared; concurrently transmitting the shared file compression packages onto a blockchain; forming data blocks according to a compressed package file name and a hash value thereof, wherein the data blocks comprise the hash value of a previous data block; using the hash value of a last data block as a root hash value; and according to the root hash value, obtaining a file comprised in the last data block, and then obtaining each file compression package in a blockchain indicated by the root hash value. By compressing a plurality of files into file packages, the present application partially overcomes the technical problem that the burden of a network resource is too high due to a large number of files; the file on-chain and sharing efficiency is improved by performing concurrent on-chain on each file compression package; and a one-way linked list data structure on the blockchain is used to save and share the file, thereby improving the security of the file.

    METHOD AND APPARATUS FOR GENERATING RANDOM NUMBERS IN BLOCKCHAIN

    公开(公告)号:EP4304131A1

    公开(公告)日:2024-01-10

    申请号:EP22762599.3

    申请日:2022-03-03

    IPC分类号: H04L9/08 H04L9/06 H04L9/32

    摘要: The present disclosure mainly relates to the technical field of computers, and in particular to a method and apparatus for generating a random number in a blockchain. In a specific embodiment, the method includes: a first random number and a first digest value of the first random number are locally generated by a first node in a blockchain; the first node submits the first digest value to a smart contract; the smart contract broadcasts a first service, so that at least one blockchain node submits participation information about the first service; the smart contract determins a second node from the at least one blockchain node based on the order of submitting the participation information; when the first service ends, the first node submits the first random number to the smart contract; when the smart contract verifies that the first random number corresponds to the first digest value, the smart contract generates a second random number based on a second digest value of the second node and the first random number; and a second service is started based on the second random number. The embodiment improves the reliability of the random number, thereby ensuring the fairness of service results.

    FILE SHARING METHOD, DEVICE, AND SYSTEM
    4.
    发明公开

    公开(公告)号:EP4180984A1

    公开(公告)日:2023-05-17

    申请号:EP21852328.0

    申请日:2021-08-04

    IPC分类号: G06F16/176

    摘要: The disclosure relates to a method, apparatus and system for sharing files, and mainly relates to the technical field of computers. One specific implementation mode of the method comprises: acquiring files to be shared, and uploading, on a blockchain, formed compressed file packages; generating by calculation a root hash value in accordance with file names of the compressed packages and hash values thereof; and acquiring respective compressed file packages in a blockchain in accordance with the root hash value. The technical problem of an excessive burden of network resources caused by a large number of files is partially overcome by compressing a plurality of files into compressed file packages, and the file uploading and sharing efficiencies are increased by uploading the respective compressed file packages on the blockchain concurrently; the files are stored or updated, and the root hash value is shared by using data structures such as a binary tree structure, a multi-way tree structure, and a dynamic tree structure to acquire, by the root hash value and respective node hash values, the shared files, which improves the security of the files.