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 0x3dda96c10f7e4b49618c9d07cadfa539cd72975ebb039099d91752e9fd000e86. Chain 2 (Bitcoin): anchored in block 953641 (2026-06-14T13:54:28Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3bf94dc5-c3ab-4a0b-bf4d-a580bb3ff607.json and https://artists.proofprofile.net/proofs/artist/3bf94dc5-c3ab-4a0b-bf4d-a580bb3ff607.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Maria Breteira / Bomba Relogio / Ela Se Derrete De Paixao
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 0xdb2c43a88338b096b5fe4d4133524b29429d5dcf886d2fafc23ffc90e362e09c. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/BRAPI0600085.
O Mundo E A Minha Cama / Nois Enverga Mais Nao Quebra / Da Colmeia Eu Tiro O Mel
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70dd3b89fdf19301467180c25e334de35d7c8be522586539a208f3405aa47171. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T02:21:57Z), 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/BRAPI0600086.
Abertura Barretos 2024 / Com Destino À Barretos
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa568bf94b709050b32a3b0c8d3cdb3283d0a8a2f111f6fbd95830db44469ac6c. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/BRBGK0500321.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddc192d525522b7eb53b2c8fa01516cb2b1eabceb5f37d80c31b97c142e730f5. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/BCP2X2400080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb4cbfef0ccd3cc3f9e7a23a68d869f18f1aeb7bc05e80a400652ace9606e60e. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/BRAPI0500561.