Identity that survives the quantum break.
QuantumDNA issues verifiable credentials whose proof is hybrid post-quantum — signed at once with classical Ed25519, lattice ML-DSA-87, and optional hash-based SLH-DSA. A credential carries a did:trelyan identity, lets the holder disclose only the claims they choose, and proves the holder controls the subject — all independently checkable. Forging one would require breaking three independent cryptographic families at once — under the declared trust model and today's known algorithms.
Falsifiable, not trust-me.
- Authenticity — the credential was issued by the pinned issuer (whose
did:trelyanbinds its keys); the hybrid proof verifies under Ed25519 ∧ ML-DSA-87 ∧ (optional) SLH-DSA. - Selective disclosure — the holder reveals only the claims they choose; each disclosed claim is provably part of the signed credential, and the hidden ones leak nothing (salted commitments).
- Holder binding — a proof-of-possession shows the presenter actually controls the subject identity, not just a copied credential.
- Validity — unexpired and not on the revocation list, both bound into the signature.
- W3C interoperable — exports to the standard Verifiable Credentials shape for wallets and verifiers.
Issue → present → verify.
- An issuer signs a credential — the claims become a salted Merkle commitment, and the whole credential is dual/triple-signed across crypto families.
- A holder presents it, disclosing only the claims a verifier needs, optionally proving control of the subject DID with a fresh challenge.
- A verifier checks the hybrid signature under the issuer's pinned keys, the disclosed claims against the signed root, expiry, and revocation — offline, no phone-home.
QuantumDNA is an open, unaudited reference implementation of post-quantum verifiable credentials. It is "tamper-evident and downgrade-detecting under the declared trust model," not "unbreakable." did:trelyan is a self-anchored method, not (yet) a W3C-registered DID method. Falcon/FN-DSA (FIPS-206) and parts of the PQC standards are still finalizing; this is reference software for evaluation and pilots, not a certified product. Nothing here is an offer of any security, token, or financial instrument.