Nah Traoré - Mbaou Tounkara - Pamela Badjogo Mapaha - Oumou Sangare - Fatoumata Diawara - Pookie - Daniel Bilong - Idrisaa Soumaoro
{"copyright_id":"0xa608757a90f692b3914bf61c70fcf35b225aa5b8df5aa81734c8ecdd8f6c5a09","name":"Nah Traoré - Mbaou Tounkara - Pamela Badjogo Mapaha - Oumou Sangare - Fatoumata Diawara - Pookie - Daniel Bilong - Idrisaa Soumaoro","registered_at":"2026-06-16T23:38:27Z","symbol":"NIM1211919","token_address":"0xd825191bb94e1ed0616195ca5912026b19796ede","type":"artist","uuid":"6095bfe1-51c5-4f80-b188-ae125f915a44"}
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 0xa608757a90f692b3914bf61c70fcf35b225aa5b8df5aa81734c8ecdd8f6c5a09. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/6095bfe1-51c5-4f80-b188-ae125f915a44.json and https://artists.proofprofile.net/proofs/artist/6095bfe1-51c5-4f80-b188-ae125f915a44.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).