Smart Contract-Based Electronic Contract Forensics Method and System

A smart contract-based electronic contract forensic system, comprising an electronic contract platform configured to initiate a forensic request, and a blockchain digital deposit platform that receives the forensic request, and accesses an electronic contract based on a smart contract, wherein

• the electronic contract platform is configured to perform:
• a request initiating step:
• initiating a forensic transaction to a blockchain digital deposit platform based on the forensic request for the electronic contract;
• the blockchain digital deposit platform is configured to perform:
• a forensic token generating step:
• verifying the forensic transaction, and executing the smart contract, to generate a forensic token;
• an execution result generating step:
• generating an execution result based on the forensic token;
• a digest obtaining step:
• obtaining a digest of a deposit transaction based on the execution result;
• a storage index table generating step:
• decrypting the digest, to generate a storage index table;
• a transaction data generating step:
• downloading corresponding pieces of distributed stored data according to the storage index table, and splicing the pieces of data to obtain transaction data;
• a transaction data decrypting step:
• decrypting the transaction data;
• and
• a verifying step:
• verifying validity, legitimacy, and integrity of the decrypted transaction data, and after the verification is completed, sending a verification result to the electronic contract platform;
• and
• the electronic contract platform is further configured to perform:
• a forensic report generating step:
• generating a forensic report after the verification result sent by the blockchain digital deposit platform is received.

A smart contract-based electronic contract forensic system, comprising an electronic contract platform configured to initiate a forensic request, and a blockchain digital deposit platform that receives the forensic request, and accesses an electronic contract based on a smart contract, wherein

• the electronic contract platform is configured to perform:
• a request initiating step:
• initiating a forensic transaction to a blockchain digital deposit platform based on the forensic request for the electronic contract;
• the blockchain digital deposit platform is configured to perform:
• a forensic token generating step:
• verifying the forensic transaction, and executing the smart contract, to generate a forensic token;
• an execution result generating step:
• generating an execution result based on the forensic token;
• a digest obtaining step:
• obtaining a digest of a deposit transaction based on the execution result;
• a storage index table generating step:
• decrypting the digest, to generate a storage index table;
• a transaction data generating step:
• downloading corresponding pieces of distributed stored data according to the storage index table, and splicing the pieces of data to obtain transaction data;
• and
• a transaction data decrypting step:
• decrypting the transaction data;
• and
• the electronic contract platform is further configured to perform:
• a verifying 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 to perform:
• a forensic report generating step:
• generating a forensic report after the verification result of the decrypted transaction data which is transmitted by the electronic contract platform is received.