Жіночий Вокальний Квартет Та Інструментальний Ансамбль П/К М. Скорика
{"copyright_id":"0x0c0f0082f491050e08185e879c60fcf94fa306fb610f00bff5eaa8b4ea8b45c3","name":"Жіночий Вокальний Квартет Та Інструментальний Ансамбль П/К М. Скорика","registered_at":"2026-06-20T12:18:19Z","symbol":"NIM1611746","token_address":"0xa9cd7f7dab1cd45515c958f84c255cad58ac171c","type":"artist","uuid":"b1431607-fe52-4781-b1ec-ea5486f10d8d"}
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 0x0c0f0082f491050e08185e879c60fcf94fa306fb610f00bff5eaa8b4ea8b45c3. Chain 2 (Bitcoin): anchored in block 954569 (2026-06-20T14:36:29Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b1431607-fe52-4781-b1ec-ea5486f10d8d.json and https://artists.proofprofile.net/proofs/artist/b1431607-fe52-4781-b1ec-ea5486f10d8d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).