Smart Contracts · 2024 
ProofPass
Blockchain-based credential verification platform.
Challenge
ProofPass issuers needed tamper-evident credentials — certificates, licenses, completions — that any verifier could check in seconds without calling the issuer.
Solution
We built non-transferable credential tokens with an on-chain revocation registry and a hosted verifier API, plus an issuance console non-technical staff can run.
Architecture
Soulbound-style credential contracts, an issuer console with bulk issuance, and a verifier API performing revocation checks in a single call.
Features
- Issuance console
- Revocation registry
- One-click verification
- Verifier API
Technology Stack
Solidity · Hardhat · IPFS · Node.js · React
Blockchain Network
Polygon, Base
Results
25,000 credentials issued in pilot; median verification time under 3 seconds.
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Issuing credentials that must verify?
We build issuance systems verifiers trust.