Sohail Sen, Mohit Chauhan, Taraannum Mallik, Kausar Munir
{"copyright_id":"0x94cc430cad1618d131f5bd5ff5b12dfe681e9c5e34d24510287305785e76dde0","name":"Sohail Sen, Mohit Chauhan, Taraannum Mallik, Kausar Munir","registered_at":"2026-06-20T06:09:20Z","symbol":"NIM1539268","token_address":"0x072ed139c1bbb0cc1203e5986803e6cdfe38b262","type":"artist","uuid":"a31dafd4-9d98-4e7d-a7ea-d6c4c479a5e9"}
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 0x94cc430cad1618d131f5bd5ff5b12dfe681e9c5e34d24510287305785e76dde0. Chain 2 (Bitcoin): anchored in block 954516 (2026-06-20T07:04:44Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a31dafd4-9d98-4e7d-a7ea-d6c4c479a5e9.json and https://artists.proofprofile.net/proofs/artist/a31dafd4-9d98-4e7d-a7ea-d6c4c479a5e9.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).