{"copyright_id":"0xe0ca9ed0c787b2d920fa4e851fda762505454a620fe926b3fedf977ecdb6d325","name":"Shreya Ghoshal, Ranjith, Naveen Madhav","registered_at":"2026-06-17T18:40:48Z","symbol":"NIM1484373","token_address":"0x3fc4f002b97c056e1bced9dbe9dc3fa96c937fd0","type":"artist","uuid":"97d6a0fb-a130-4dea-81e4-6c925fc7668a"}
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 0xe0ca9ed0c787b2d920fa4e851fda762505454a620fe926b3fedf977ecdb6d325. 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/97d6a0fb-a130-4dea-81e4-6c925fc7668a.json and https://artists.proofprofile.net/proofs/artist/97d6a0fb-a130-4dea-81e4-6c925fc7668a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).