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 0xece1cc6b4f8f5f7df94c1d4ccfcce7364fb3835a7a210763da3c429251fd634d. Chain 2 (Bitcoin): anchored in block 954784 (2026-06-22T02:53:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f03ef5d1-5c33-4212-8308-9a6126493605.json and https://artists.proofprofile.net/proofs/artist/f03ef5d1-5c33-4212-8308-9a6126493605.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
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 0x253295c6b25db78827a68e2b17a7645c70fa73a051356c3bee4da13a988b6606. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/BX1XA2100128.
Se o Mágico Faz Mágica, Feiticeira Faz Feitiço
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55e57be9b986ff52e847d848a0cc4a5da77168ba55c800166a5e9e544609071b. Chain 2 (Bitcoin): anchored in block 957867 (2026-07-13T14:55:20Z), 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/BR90B2301909.
Tá Chegando a Hora: Tiquinho Soares É Foda
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb038f539f5f1da199a8814084e77521eb2ba42cc6b1078707551afdffffc9291. Chain 2 (Bitcoin): anchored in block 959031 (2026-07-21T18:53:34Z), 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/BR90B2302478.
Tropa do Urso, Jacaré, Paraíbas e do Maluco
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc4f6188ef5666f7e95423858e03345ea5cf2bafeb0a9e13db0638bfb56c1a09. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/BR90B2402474.
E Dale Dale Meu Fogão (Ao Vivo na Argentina)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x360b95d73e50d6e6e804edd6a5bc57a158de5a30cb4eda256c4efd3adfce28d6. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/AEA3A2268966.