"proof": {
"type": "DataIntegrityProof",
"cryptosuite": "eddsa-jcs-2022",
"verificationMethod": "did:key:z6Mk...#key-1",
"proofValue": "z58xkAtLcnvETu..."
}A log says something happened — your log, your word. A sealed, registry-anchored record says what happened in a form anyone can check without asking you. That's the difference between a note to self and a receipt.
W3C Data Integrity Proofs (eddsa-jcs-2022). Change one byte of a sealed record and verification fails — anywhere, for anyone, forever.
DeepaData-issued seals add a registry entry: discoverable and queryable by certificate ID. Re-appraisals are appended, never rewritten — never silent deletion.
Verification needs no DeepaData account and no access to the record's content. The proof is exposed; the payload is not.
Open tooling (ddna-tools, ddna-reader — MIT) verifies a sealed envelope with no network at all. Self-sealing with your own keys is free, forever.
Three conformance levels ladder up: Compliant (schema-valid) → Sealed (signed, self-service) → Certified (DeepaData-issued, registry-listed). Conformance levels · Public registry
const sealed = await fetch(
"https://deepadata.com/api/v1/issue",
{
method: "POST",
headers: { Authorization: "Bearer dda_live_..." },
body: JSON.stringify({
artifact, // the extracted EDM record
pathway: "delegated",
authority: "app:your-platform"
})
}
).then(r => r.json());
// sealed.certificate_id → hand to anyone; they can verify
// without your help and without seeing the content.Observability tools watch your system for you. A sealed record speaks for you — to people who have no reason to take your word. Keep your traces; add the record layer they were never designed to be.
The proof record does double duty: the trace your auditor reads is the one your engineers use to see what the model was actually computing over — and to make the product better.
Exactly what you want for fixing your product.
Exactly what you need when one interaction matters.
The same goes for memory systems: memory optimizes what a model recalls next — it compresses, rewrites, and forgets by design. A record preserves what happened, unmodified and provable. Both are natural consumers of sealed records, not substitutes for them.