Transaction mode-based electronic contract forensics method and system

A transaction-based electronic contract forensics system, comprising an electronic contract platform configured to initiate a forensics request, and a blockchain digital deposit platform that receives the forensics request, and stores and retrieves an electronic contract based on a transaction, wherein

• the electronic contract platform is configured with:
• a request initiation step:
• initiating a forensics request for the electronic contract;
• the blockchain digital deposit platform is configured with:
• a digest obtaining step:
• obtaining a digest of a corresponding deposit transaction based on the forensics request for the electronic contract;
• a storage index table generation step:
• decrypting the digest to generate a storage index table;
• a transaction data generation step:
• downloading corresponding distributed storage data according to the storage index table and splicing the data to obtain transaction data;
• a transaction data decryption step:
• decrypting the transaction data;
• and
• a verification step:
• verifying validity, legitimacy, and integrity of the decrypted transaction data, to generate a forensics report;
• and
• the electronic contract platform is further configured with:
• a forensics report generation step:
• receiving the verification result sent by the blockchain digital deposit platform to generate the forensics report.

A transaction-based electronic contract forensics system, comprising an electronic contract platform configured to initiate a forensics request, and a blockchain digital deposit platform that receives the forensics request, and stores and retrieves an electronic contract based on a transaction, wherein

• the electronic contract platform is configured with:
• a request initiation step:
• initiating a forensics request for the electronic contract;
• the blockchain digital deposit platform is configured with:
• a digest obtaining step:
• obtaining a digest of a corresponding deposit transaction based on the forensics request for the electronic contract;
• a storage index table generation step:
• decrypting the digest to generate a storage index table;
• a transaction data generation step:
• downloading corresponding distributed storage data according to the storage index table and splicing the data to obtain transaction data;
• and
• a transaction data decryption step:
• decrypting the transaction data;
• the electronic contract platform is further configured with:
• a verification step:
• verifying validity, legitimacy, and integrity of the decrypted transaction data, and transmitting a verification result to the blockchain digital deposit platform;
• and
• the blockchain digital deposit platform is further configured with:
• a forensics report generation step:
• receiving the verification result, of the decrypted transaction data, that is transmitted by the electronic contract platform, to generate a forensics report.