Orquestra Sinfónica do Teatro Nacional de Sõo Carlos de Lisboa
{"copyright_id":"0x10880cb8f12a23d83493e607718337db118e283012d490b3adcdd0ebd8022aeb","name":"Orquestra Sinfónica do Teatro Nacional de Sõo Carlos de Lisboa","registered_at":"2026-06-14T21:55:35Z","symbol":"NIM0588273","token_address":"0x94ebf6d2e2c1e66e9d634c98b7707adc3a7beec5","type":"artist","uuid":"a5a34d94-8612-425d-ab16-4cd44dd388cc"}
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10880cb8f12a23d83493e607718337db118e283012d490b3adcdd0ebd8022aeb. Chain 2 (Bitcoin): anchored in block 953746 (2026-06-15T05:25:34Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a5a34d94-8612-425d-ab16-4cd44dd388cc.json and https://artists.proofprofile.net/proofs/artist/a5a34d94-8612-425d-ab16-4cd44dd388cc.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Verdi: La traviata, Act 1 Scene 5: "Ah, fors'è lui lui che I'anima" (Violetta)
Orquesta Sinfonica del Teatro Nacional de Santa Carlos, Lisboa
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f2506b6fdf61f146a1056c0eee6eeedd8467ed20d0f00d88aa05ffc741d55d2. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/GBAYC9702903.
Maria Callas - Popular Music from TV, Films and Opera
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f2506b6fdf61f146a1056c0eee6eeedd8467ed20d0f00d88aa05ffc741d55d2. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/GBAYC9702903.