Tamper-evident cold chain verification for pharmaceutical cargo — powered by Solana.
Cold chain disputes cost the pharmaceutical industry $35 billion annually. Centralized logs can be altered, backdated, and challenged in court. April Gate replaces thousands of mutable temperature records with a single zero-knowledge proof — recorded permanently on blockchain. Nobody can alter it. Not us, not the shipper, not anyone.
→ aprilgatehq.com · irina@aprilgatehq.com
| Repo | Description |
|---|---|
| coldchain-core | ZK consensus proof engine · Rust/Bellman · sensor simulation · Actix REST API |
| coldchain-programs | Solana on-chain programs · device registry · proof submission |
| coldchain-web | Public website · operator dashboard · shipment verification portal |
- Hardware-signed sensors — ATECC608 secure element signs every reading. Private key never leaves the chip.
- Multi-sensor consensus — sensors form a local mesh and agree on readings, even during connectivity dead zones.
- Zero-knowledge proof — a single mathematical certificate proves conditions were valid without revealing operational details.
- On-chain record — proof submitted to Solana. Immutable, verifiable by anyone, forever.