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 0x32480d743e2b8a665c3771618b8f37a18c202c1e56dd82fb05e8138edaec989f. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f9ec17b4-5c8b-4645-a667-22a100f5c367.json and https://artists.proofprofile.net/proofs/artist/f9ec17b4-5c8b-4645-a667-22a100f5c367.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
My Name Is Alan and I Paint Pictures (Original Score)
Country Stabbed in the Heart (Original Score)
Vox Humana (As Featured By Digic Pictures)
The Man Who Was Thursday (Original Score)
Tony, Shelly and the Magic Light (Original Score)