## PCR Plastic Supply Chain Blockchain Traceability: Implementation Guide
### Introduction
Blockchain technology enables transparent, immutable tracking of recycled plastics from collection to final product. This guide outlines implementation strategies for PCR plastic traceability systems.
### Blockchain Fundamentals
**Key Features**:
– Decentralized ledger (no single point of failure)
– Immutable records (tamper-proof history)
– Smart contracts (automated compliance)
– Tokenization (carbon credit tracking)
**Platform Options**:
– Ethereum (public, high security)
– Hyperledger Fabric (private, enterprise)
– Polygon (low cost, fast transactions)
– VeChain (supply chain specialized)
### Implementation Architecture
**Data Points Tracked**:
1. Collection location and date
2. Sorting facility and method
3. Reprocessing batch and parameters
4. Quality test results
5. Transportation records
6. Final product integration
**Stakeholder Integration**:
– Waste collectors (mobile app data entry)
– Sorting facilities (IoT sensor integration)
– Reprocessors (ERP system connection)
– Manufacturers (QR code scanning)
– Consumers (product passport access)
### Smart Contract Applications
**Automated Compliance**:
– Recycled content verification
– Certification validation
– Payment release upon delivery
– Penalty enforcement for non-compliance
**Carbon Credit Management**:
– Emission reduction calculation
– Credit issuance and transfer
– Retirement and verification
### Case Study: Circularise
– Platform: Ethereum-based
– Partners: Marubeni, Neste, QCP
– Features: Mass balance tracking
– Results: 30% reduction in audit costs
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**Keywords**: PCR plastic blockchain, supply chain traceability, digital product passport, blockchain implementation