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 0xe576b7214c556752b37001edbc1cafea9a92f29692e58025775f637c8b48147d. Chain 2 (Bitcoin): anchored in block 953841 (2026-06-15T22:20:26Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0022f5cb-04b0-4279-a1b7-25f45d8f508a.json and https://artists.proofprofile.net/proofs/artist/0022f5cb-04b0-4279-a1b7-25f45d8f508a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
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Mother Moana (Inspired by ‘The Outlaw Ocean’ a book by Ian Urbina)
On The Outlaw Ocean (Inspired by ‘The Outlaw Ocean’ a book by Ian Urbina)