YD/T 4387-2023
Blockchain traceability application technical requirements and testing methods (English Version)

Standard No.

YD/T 4387-2023

Language

Chinese, Available in English version

Release Date

2023

Published By

Professional Standard - Post and Telecommunication  CN  /  YD

Latest

YD/T 4387-2023

Introduction

Analysis of the Standard Core Framework

Architecture Level	Core Functions	Key Technologies
Basic Layer	Blockchain Bottom Support	Consensus Mechanism/Smart Contract/Cryptography Algorithm
Management Layer	System Operation and Maintenance Management	Node Management/User Rights/Contract Management
Service Layer	General Service Components	Data Access/Traceability Query/On-Chain and Off-Chain Collaboration
Application Layer	Scenario-based solutions	Food and drug traceability/luxury product traceability/equipment traceability

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Detailed explanation of key technical requirements

Dual mechanisms for data tamper prevention

The standard requires support for tamper prevention of both structured data (such as database records) and unstructured data (such as pictures/videos). In practical applications, agricultural product traceability requires recording growth environment sensor data (structured) and scanned copies of inspection reports (unstructured).

Two-way traceability capability matrix

Traceability direction	Technical requirements	Application examples
Forward traceability	Trace raw materials from finished products	Query milk source ranches for milk powder batches
Reverse traceability	Locate related products from links	Query affected batches through packaging links
Directional traceability	Tracking between specific links	Tracking temperature control records in cold chain transportation

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Key points for implementing test methods

Traceability code full life cycle test

The standard stipulates that the generation, allocation, use and cancellation of the traceability code must be verified in four stages:

1. Generation test: Verify the compliance with the GS1 coding specification
2. Security test: Simulate forgery attacks to detect randomness
3. Failure test: Verify the query interception mechanism of expired codes

Performance benchmark test indicators

Test items	Mandatory requirements	Recommended indicators
Query response time	≤10 seconds	≤3 seconds (90% requests)
System availability	24/7	99.9% availability
Concurrent processing capability	1000TPS	5000TPS

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Industry implementation recommendations

Multi-data source access solution

Recommended access method combinations for different business scenarios:

• Agricultural product traceability: IoT devices + manual spot checks (sensors collect environmental data + quality inspectors upload via APP)
• Cross-border goods: API docking with customs system + blockchain evidence storage
• Drug circulation: GS1 traceability code + direct connection to temperature control equipment

Privacy protection implementation path

The standard requires the use of technologies such as encrypted storage, authority grading, and zero-knowledge proof to achieve the following:

1. Manufacturers: see complete supply chain data
2. Regulatory agencies: obtain audit permissions
3. Consumers: only view anonymized information

YD/T 4387-2023 Referenced Document

• GB/T 22239-2019 Information security technology — Baseline for classified protection of cybersecurity
• GB/T 36061-2018 General specification for traceability of E-commerce transaction products
• GB/T 38155-2019 Important product traceability—Traceability terminology

YD/T 4387-2023 history

• 2023 YD/T 4387-2023 Blockchain traceability application technical requirements and testing methods

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