Anna may refer to: People Surname and given name Anna (name) Mononym Anna (goddess), the main deity in Old Assyrian Kanesh Anna the Prophetess, in the Gospel of Luke Anna of East Anglia, King (d
1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe34b1033e2b3518e18b94453deb635720f1fe9858f2b046cddcb428db804cfa1. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/6f009072-8727-47eb-a21c-bea3f81032ee.json and https://artists.proofprofile.net/proofs/artist/6f009072-8727-47eb-a21c-bea3f81032ee.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).