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 0xad66d4691544980a664349f69b29fdfa030bd74bc481cb71e7d8ca8178e62faf. Chain 2 (Bitcoin): anchored in block 954346 (2026-06-19T03:51:26Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/989e79a2-cd69-47ce-9400-62140e4e6955.json and https://artists.proofprofile.net/proofs/artist/989e79a2-cd69-47ce-9400-62140e4e6955.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Ode to Mum / Mummy Just Went Away (Remastered 2024)
I Can Feel Love Slippin' Away 1978 (Remastered 2024)
Merry Christmas from me to You (Acoustic)
The Man who Stole the World (Remastered 2025)