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Pharmaceutical Traceability: Verifiable Cold Chain with Blockchain

Proovik · Jan 8, 2026 · 8 min read

Pharmaceutical Traceability: Verifiable Cold Chain with Blockchain

The Cold Chain Challenge

Biological medicines, vaccines, and certain drugs require controlled temperature conditions throughout transportation and storage. A break in the cold chain can:

  • Reduce the effectiveness of the medication.
  • Pose health risks to the patient.
  • Result in millions in economic losses.

Regulations such as the Directive 2011/62/EU (FMD) and the DSCSA from the FDA demand complete traceability and serialization.

Problems with Current Systems

  • Siloed data: Each player in the chain uses their own system.
  • Alterable records: Temperature logs can be manipulated.
  • Slow verification: Identifying a break can take hours or days.

Blockchain + IoT: The Solution

By combining IoT sensors with blockchain logging, an immutable chain of custody is created:

  1. Sensors record temperature, humidity, and location.
  2. Data is transmitted in real-time to the blockchain.
  3. Each reading is timestamped.
  4. Any anomaly triggers an instant alert.

Benefits

  • ✅ Irrefutable proof: In case of dispute, the blockchain record is the truth.
  • ✅ Regulatory compliance: Data ready for inspections.
  • ✅ Loss reduction: Detects problems before it’s too late.
  • ✅ Patient trust: Demonstrates the integrity of the medication.

Integration with Your Infrastructure

Our API integrates with leading IoT sensor providers and LIMS/ERP systems. It logs each temperature event as a point in the Hash Chaining.

Request a Demo

Want to see how it works in your operation? Contact our sales team.

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Reference guides

From reading to proof

The three guides that explain where proof of existence and prior date comes from, and the two actions to check it yourself.

How to prove a document existed on a date

The methods that fix a document’s date, compared side by side, and how far each one goes.

Blockchain time stamping

What a non-qualified electronic time stamp is (Art. 3(16) EU Reg. 910/2014) and how anyone can check it without us.

Traceability with EPCIS 2.0

Supply-chain events stamped one by one, with GS1 Digital Link and public verification.