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 0x2cca5e5892137699ea941c2ed00f56b43f6dd870fbdd3f7749a4e54fe1f1268d. Chain 2 (Bitcoin): anchored in block 953777 (2026-06-15T11:52:51Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c9c3e263-dd65-4695-829c-9fcec48400b6.json and https://artists.proofprofile.net/proofs/artist/c9c3e263-dd65-4695-829c-9fcec48400b6.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 0x1fecfda757e55617bb8ba2fa743683d275729bb6287696de8949bb1dc07edabd. 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/BC7SJ2100004.
Gradativol (ao vivo no Palácio das Artes)
AzulAmarelo (ao vivo no Palácio das Artes)
Dolores 602 ao Vivo no Palácio das Artes
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a1539dd9e363de952d0bacfdc55afdb5075eb81849874dcd1a7cf6aa8983611. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/BC7F22400052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cb8a34ce4e0279e44e9be5f9ebe57733faffca5311194a208757fcc3c27fd21. 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/BRLKQ2400018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30823e53265a2ca1c671d6c2b3a7a8b2895409249bcd3f8b281a535bf47cfa76. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/BRLKQ2400005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc31924e9236ef47e9fa8d5b979289140f679e49038087ec5f4c885f0273e0dbc. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/BRLKQ2400006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd3f3b046872d1dc7dc383fae88fdf20c0eb9ad6e22ccf99db6b4437ce24b244. 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/BRLKQ2400002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b64645f28d05effa758d796d55e846c1f1b1aaf36e604fe63862678263724e2. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/BRLKQ2400007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cfd1744ae5a31748438d8631aa8000b10c315c2085307b9514f71683d34acce. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/BRLKQ2400009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3c2af77c5fa6bfa2d47f6d644474d3f0e531182dc4932eff8a04c0d40754f73. 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/BRLKQ2400003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08dbe06d9c08680a7825230325e142c756bb91ddb04b01d81915e6d9ef9a88ca. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/BRLKQ2400010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe91fd026c3266b746cf209ac3379bb93ed556813d410301267828751e313a1d7. 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/BRLKQ2400011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27e3e63af1c3583e86a0141458b2087e101994e9e713e21a5e1e0f65f80dd72f. 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/BRLKQ2400004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3eadeb18ac9e6f834eb4d87c87bafdac54421fe148294c948fdad50755369c61. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/BRLKQ2400017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5868e24b49a8d13b6e5cef1322e33f1fd3540127db372828b213a6e5e1b8d24. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/BRLKQ2400001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe047463aa07be7723f7c668cd6b64b4240c9bfcf34e9a4f76dff3a95fa3d923c. 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/BRLKQ2400012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x403e0e631f5483889d6d04ac24aa43c02bb7e25b7465e6d6a882a07f26eb537b. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/BRLKQ2400013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6d56d4c4b822b19a285aedde99c3b1ae68f1358cbb6f19e7ece0c81ca747d42. 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/BRLKQ2400014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57f4ec1097f9aeb2a06b6b3f5de41c9c4742ac93d58e9c5c56c14cce5acf012c. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/BRLKQ2400015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x725e2ac7032668fac532ad1800286fcc55025f1208cb9db10dc815162a91c2d8. 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/BRLKQ2400016.
2º Festival Xetruá Lavizala - Kuxonga Kua Menha (O Ciclo das Águas)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b99ed1ece85dd91aa9f93db6d34091735f8c0bbe0e6575e08437489c77ab16e. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/QZNJX2348297.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a4c5cbe27395147ad04a5a26f396ee0da934f9a01fa495563e97638103df3b8. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-22T01:21:05Z), 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/QZNJX2348304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0fa7e62182d6e3a6ca02ee4c010b97713d5948b3c00791893eb8cfb6a82afa8. Chain 2 (Bitcoin): anchored in block 960106 (2026-07-29T12:41:21Z), 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/QZNJX2348300.
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 0x6454e6abc793a24f9ac73a2dcac933312bb95e3fe2b5c3d4c8ef8536308e12ab. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/BCRS02200002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa9aa6609b0231e5a90e19b56c50fcc7a3d438f8ed09c4b129b64c85a67ee5d4. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/BXX0T2200002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad502ac7c3c9166a8f33fa1e52fd4b81f529d8334127fbcb3bbfbd5d8164e2a1. 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/BXX0T2200003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc02172219097bb2e0283460108e5a7ae3f6bea4d2b11a6fabc992ea5929d87b9. 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/BXX0T2200004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x857ac51831cf4366224e00e48398b85a2a0d1aeeb98f559d7fbae3ec4a26da20. 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/BXX0T2200006.