Learner-owned academic credentials, built on open standards — issue, hold, verify.
A working prototype aligned with the open-standards approach championed by the Digital Credentials Consortium (MIT-led): credentials are learner-owned, cryptographically verifiable, privacy-respecting, and interoperable — not locked to any single vendor. Every signature and hash on this page is computed live in your browser with the Web Crypto API.
Acting as a credentialing institution. The credential is assembled as an Open Badges 3.0 achievement inside a W3C Verifiable Credential, then signed with the issuer's private key.
A decentralized identifier (DID) derived from the issuer's public key. Verifiers resolve this DID to the key that checks the signature — no central authority required.
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The learner holds and controls their own credentials. From here they can inspect the raw signed credential, present it to a verifier, or copy it to share.
No credentials yet — issue one from the Issuer tab.
Paste a signed credential (or click “Present” on a wallet card). Verification is fully independent: it checks the cryptographic signature, the blockchain anchor, and the revocation status.
A credential is only trustworthy if all of these hold.
Each issued credential's SHA-256 hash is anchored to an append-only, hash-linked ledger. Publishing only the hash keeps private data off-chain (privacy) while making tampering evident: change any credential and its hash no longer matches its block, and every later block breaks too.