This is the append-only transparency log behind DF Notary. Each entry chains to the one before it — entry_hash = sha256(prev_hash + canonical entry) — so altering any record breaks every hash after it. The chain head is anchored to Bitcoin daily. Expand a row and your browser recomputes the hashes itself.
What an entry attests: that Dynamic Feed witnessed these exact bytes (or this hash) at this moment — never that the content is accurate. Subjects are self-declared by the submitting key holder. The log stores hashes only, never payloads.
entry_hash = sha256(prev_hash + canonical_json(entry minus entry_hash)) — JSON sorted keys, compact separators, ASCII-escaped. Genesis prev_hash = 64 zeros. JSON API: GET /v1/notary/log
Don’t trust this page: the same data is at GET /v1/notary/log (Ed25519-signed), every entry at /v1/notary/log/{idx}, every inclusion proof at /v1/notary/log/{idx}/proof — and the recompute runs in any language. Spec: dynamicfeed.ai/standard