{"copyright_id":"0x14fda32463f7910cdef60224f862bbdacafc7cbeaacb50d5e2ce44cd77bacae9","name":"Orquestra Petrobrás Sinfônica","registered_at":"2026-06-17T18:35:44Z","symbol":"NIM1483165","token_address":"0x28bd16cc88ff6f2156221f5c6814f93b5e525205","type":"artist","uuid":"985708cd-fcfd-409e-ba99-7d2ca60e49ac"}
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 0x14fda32463f7910cdef60224f862bbdacafc7cbeaacb50d5e2ce44cd77bacae9. 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/985708cd-fcfd-409e-ba99-7d2ca60e49ac.json and https://artists.proofprofile.net/proofs/artist/985708cd-fcfd-409e-ba99-7d2ca60e49ac.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Abertura do Concerto Negro / Kizomba Festa da Raça / Pra Tudo Se Acabar na Quarta-Feira / Onde o Brasil Aprendeu a Liberdade / Ya Ya do Cais Dourado / Sonho de um Sonho / Zumbi dos Palmares,
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 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. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp 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 0xf7d7fb5c9a7433a1b0373692c2c5e084a93bbc7f7d0ff057242fa0bb9b6c6e87. Chain 2 (Bitcoin): anchored in block 960157 (2026-07-29T22:12:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BRUKM1300026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x978de6260c1080981d2cd5d422a4c5d8332563ae6839b6bb206434f618b7cb6f. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BRUKM1300013.