{"copyright_id":"0x82b9d0a4bd0f24141c38fa2a7bc57ef840f49ebbaceacc44f2f2d4cba1ee04ab","name":"Three Chord Society","registered_at":"2026-06-17T12:44:02Z","symbol":"NIM1399289","token_address":"0x922caac9f6de7b77d225aa5f2fdeff42a153bf69","type":"artist","uuid":"86ff2540-5860-453c-b538-a9a5ee63e3fa"}
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 0x82b9d0a4bd0f24141c38fa2a7bc57ef840f49ebbaceacc44f2f2d4cba1ee04ab. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/86ff2540-5860-453c-b538-a9a5ee63e3fa.json and https://artists.proofprofile.net/proofs/artist/86ff2540-5860-453c-b538-a9a5ee63e3fa.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Digital Fan Edition (3 LPs, 2 EPs, 1 Special Bonus EP) [All Songs from 2003 to 2011]