Healthcare & Pharmaceuticals

Supply Chain Tracking System

Blockchain-based pharmaceutical supply chain with real-time monitoring

October 18, 2025
6 months
PharmaSecure Ltd.
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Project Overview

Patients who receive drugs at the pharmacy can be assured that they are buying original and safe drugs. We have created a blockchain solution which allows us to bring this trust into the realm of visibility and verification. Our platform is carefully surveilling every point of a drug halfway through the factory floor to the shelves of the drugstores, providing a chain of custody that can not be broken and can protect patients and offer reassurance to healthcare professionals.

Our Solution

The system's design was built around a permissioned blockchain network utilizing Hyperledger Fabric to create a record of cold chain custody and condition data. This setup managed to strike a balance between the need for transparency essential for meeting requirements and the need for confidentiality crucial in the competitive world of pharmaceutical supply chain logistics.

Sensor Layer

The key to keeping track of conditions in time was tying in sensors from the Internet of Things:

  • Temperature and humidity sensors attached to each pallet and tote
  • Careful calibration protocols for data accuracy
  • Encrypted gateways for data protection
  • Bluetooth Low Energy and Narrowband Internet of Things connectivity
  • Special transmission protocols to stretch battery life over weeks
  • Tamper-evident packaging with built-in breach detection systems

Gateway Infrastructure

Edge computing nodes serve as checkpoints for data:

  • Local data validation and buffering
  • Device authentication through certificates
  • Data encryption for secure transmission
  • Offline data retention capabilities
  • Real-time excursion detection with immediate local alerts

Event Streaming Platform

Apache Kafka clusters set up with partitions for types of products and shipping routes:

  • Schema validation to ensure correct data formatting
  • Data quality checks for accuracy
  • Dead letter queue for unreadable sensor readings
  • Delivery mechanism ensuring each transaction is processed once

Blockchain Network

Hyperledger Fabric implementation with enterprise blockchain peer nodes belonging to organizations:

  • Private data collections for confidential shipment information
  • Chaincode for automated smart contract development execution
  • Certificate Authority infrastructure with Hardware Security Module backed root keys

Off-chain Storage

  • PostgreSQL for telemetry history storage with query and analysis capabilities
  • Amazon S3 for raw sensor data long-term storage
  • Merkle tree commitment connecting off-chain data to on-chain proofs

API Integration Layer

Enterprise systems integration through REST and GraphQL endpoints:

  • ERP, warehouse management, and transportation management systems
  • EPCIS event formatting for supply chain visibility standards
  • Advanced Shipment Notice (ASN) and Proof of Delivery (POD) documents
  • Rate limiting and authentication for external system connections

Observability Infrastructure

  • Distributed tracing across all system components
  • Prometheus metrics collection with Grafana visualization dashboards
  • Anomaly detection algorithms for excursion risk assessment
  • PagerDuty integration for alert escalation

Technology Stack

Blockchain and Distributed Ledger

  • Hyperledger Fabric for permissioned blockchain network
  • Hardware Security Module (HSM) backed certificate authority
  • Chaincode smart contracts for automated business logic

IoT Integration

  • High-precision temperature and humidity sensors
  • Bluetooth Low Energy and NB-IoT connectivity
  • Edge gateway nodes for data validation and buffering
  • Cryptographic data authenticity validation

Event Streaming and Real-time Processing

  • Apache Kafka for high-volume event handling
  • Schema validation and data quality enforcement
  • Dead letter queues for error handling

Data Storage and Analytics

  • PostgreSQL for telemetry history and querying
  • Amazon S3 for long-term raw data storage
  • Merkle tree implementations for data integrity proofs

Container Orchestration and Deployment

  • Kubernetes for container management
  • Blue/green deployment strategies for zero-downtime updates
  • Multi-region deployment for high availability

API and Integration Layer

  • REST and GraphQL API endpoints
  • EPCIS event formatting for supply chain tracking
  • Rate limiting and authentication controls

Observability and Monitoring

  • Distributed tracing across system components
  • Prometheus metrics collection
  • Grafana visualization dashboards
  • PagerDuty for alert management
  • Anomaly detection algorithms for excursion risk assessment
  • Comprehensive security audits for system validation

Project Results

  • 100% product traceability achieved
  • 40% reduction in counterfeit goods detected
  • Full regulatory compliance maintained
  • 25% improvement in supply chain efficiency
  • 99.95% data accuracy rate

Key Performance Metrics

40%

Counterfeit Reduction

Detected counterfeit goods

100%

Traceability

Product traceability

25%

Efficiency Gain

Supply chain efficiency

99.95%

Data Accuracy

System accuracy rate

Service Level Objectives Achievement

Service Level ObjectiveTargetAchieved
Data Ingestion Latency (P99)<500ms387ms
Telemetry Signal Loss<0.1%0.08%
Chain Commit Time<2 sec1.6 sec
Alert Fan-out Time<5 sec3 sec
System Availability (30-day)≥99.95%99.97%
Data Integrity Validation100%100%
Sensor Battery Life≥8 weeks9.2 weeks

Technologies Used

Hyperledger Fabric
IoT Sensors
Python
MongoDB
React Native
Docker

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