Cross-Chain Service Verification Contracts for Secure Data Relay

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Solution Overview

Problem

Existing blockchain systems face inefficiencies and security risks in cross-chain service processing due to manual intervention and lack of automated verification, leading to data leakage and high processing costs.

Innovation Solution

Implementing a cross-chain transaction protocol with on-chain and off-chain contracts for automated verification and execution of cross-chain services, ensuring legality and validity through on-chain service verification and off-chain data verification, and utilizing cross-chain relay devices for decentralized data transmission.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If manual participation is used for cross-chain service processing, then security can be maintained, but processing efficiency is low and data leakage is prone to occur

Engineering Contradiction:
Improvecross-chain service processing efficiencyVSAvoiddata leakage risk
Core Design Contradiction:
ProductivityVSReliability

Solution Approach 1:

The patent implements automated verification through smart contracts that self-execute verification logic. The verification contract automatically checks service legality and the relay device automatically forwards data, eliminating manual intervention while maintaining security through cryptographic verification mechanisms.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The patent replaces manual verification processes with automated smart contract execution. The verification contract uses cryptographic mechanisms and automated logic to replace manual security checks, enabling efficient automated cross-chain processing without compromising security.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

2Ease of operation

If centralized relay devices are used for cross-chain data transmission, then processing can be coordinated, but system complexity increases and single point of failure risk occurs

Engineering Contradiction:
Improvecross-chain coordinationVSAvoidsystem structure complexity
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The patent divides the relay function into multiple independent relay devices instead of a single centralized coordinator. Each relay device independently verifies and forwards data, segmenting the system to eliminate single point of failure while maintaining coordinated operation through shared verification contracts.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent introduces verification contracts as intermediary mechanisms between blockchains. These contracts mediate the verification process automatically, allowing multiple relay devices to coordinate without direct complex communication, simplifying the overall system structure while enabling distributed operation.

Inventive Principle:
Principle #24Intermediary (Mediator)

3Productivity

If automated verification contracts are implemented, then processing efficiency improves, but verification complexity and computational requirements increase

Engineering Contradiction:
Improveverification processing speedVSAvoidverification mechanism complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The patent implements verification logic in advance through smart contract deployment. The verification contract is pre-programmed with the necessary verification logic, so when data needs verification, the contract automatically executes the pre-defined checks, enabling fast automated verification without complex real-time computation.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The patent changes the verification approach from complex real-time computation to parameter-based verification. The verification contract uses cryptographic parameters and predefined conditions to quickly determine validity, reducing computational complexity while maintaining high verification speed through efficient parameter comparison.

Inventive Principle:
Principle #35Parameter changes

Data Source

PatentUS20250356423A1Data processing method and apparatus based on blockchain, device, and storage medium
Publication Date: 2025.11.20 TENCENT TECHNOLOGY (SHENZHEN) CO LTD
  • US20250356423A1 patent drawing
  • US20250356423A1 patent drawing
  • US20250356423A1 patent drawing

AI summary

A data processing method based on a blockchain includes: receiving, by a first node device associated with a first blockchain, a cross-chain transaction request sent by a service terminal, invoking an on-chain service verification contract in the cross-chain transaction protocol, to verify whether the target cross-chain service is legal according to the service description information, to obtain a service verification result; invoking, in response to the service verification result indicating that the target cross-chain service is legal, an on-chain service execution contract in the cross-chain transaction protocol to execute the target cross-chain service, to obtain cross-chain transaction data; and sending the cross-chain transaction data to N cross-chain relay devices associated with the cross-chain transaction protocol.