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 0x584523582fbbcaa0ba8bbbf201763f9b980d5ad8b191328f5f22ccb6152afa66. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/4bde0c9d-90ab-4377-ab27-c8b25ae2c537.json and https://artists.proofprofile.net/proofs/artist/4bde0c9d-90ab-4377-ab27-c8b25ae2c537.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 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 0xbd2285e3ac34b8c08671cdb2522eb0a34682c49619e78b3254ee0bfa89e60b7e. 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/BRROE1500006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaaa37a34ec010b3f0eef098bf45b50fe19b63bdd67c7e0b9cda6b49b935b23a4. 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/BRMUD2400005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24aec53db5e5222dee8008adbe849f3e3d3a85285d01d139be67405a0f0bb820. 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/BRMUD2400006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58e214c567a7a76bd9b38e781a4f274ebe60e15d7a8c06d9faf862a51343a984. 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/BRMUD2300004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5e55dc73586dbd9c32a7a2494bbafdc23be540bf8c4567216e5aa90a2dbb9d5. 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/BRMUD2400007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07692728a0ac2a745ce1782c2c1ec90fdf82773bf6e3f29a8a06c28e63ba888a. 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/BRMUD2400008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7869fd5204ee935c825b67478e2d726fdccb39845c78ec484605c2e268174be2. Chain 2 (Bitcoin): anchored in block 959155 (2026-07-22T16:43:41Z), 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/BRMUD2400009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x111a71807a60142de828b92097b64bbe15f1f1816888f097d8409a90ee1bab19. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/BRMUD2400011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12bb7f9e9299f0513ff4711aa671901fe8da7e794ebc313fa8241684b8620ccd. 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/BXKBP2300019.
A Música do Músico - Moacyr Luz e Convidados
Multishow Ao Vivo: 30 Anos - Vida Que Segue
Atire A Primeira Pedra / Volta Por Cima - Ao Vivo No Rio De Janeiro / 2012 / Medley
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedb7e2d8f83b3432ae0467a1c3436fda4c13c70c315974261063ddefefb42473. 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/BRUM71300166.
Aquarela Brasileira - Ao Vivo No Rio De Janeiro / 2012
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x699074430585b546447302d8d3533a2dcc40885db449f1c00deefc5b6ecb2f18. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/BRUM71300167.
Abre A Janela - Ao Vivo No Rio De Janeiro / 2012
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21247cbe876171b1e45b508004717c44b3cb487232da789350349283096cb243. 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/BRUM71300169.
Opinião - Ao Vivo No Rio De Janeiro / 2012
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4b91dbe1d5c3db35d7c9c7b3bd1ab72ce0e56833d15bed9f23f759ca3d40992. 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/BRUM71300170.
Gosto Que Me Enrosco - Ao Vivo No Rio De Janeiro / 2012
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57f3b096d1032afac614e07fc620043e4353c3c951495f381e8f20e1e813c4f5. 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/BRUM71300171.
Preciso Me Encontar / Citação: Melodia Sentimental - Ao Vivo No Rio De Janeiro / 2012
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a51259d2b76bbcd7160dec0756e7a3aafe7f81e40b478da37c235d9ee7e7cde. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/BRUM71300174.
Mascarada - Ao Vivo No Rio De Janeiro / 2012
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36fecb696c935c915c685fb96e2ad45b2c80800997119de52699a4a286ca0872. 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/BRUM71300175.
Se Eu Errei / Eu Agora Sou Feliz - Ao Vivo No Rio De Janeiro / 2012 / Medley
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ef8b90d8e11849c788dc2b2cf4705ca6b5935f9849b7d8a0bc4d70a3cb29a08. 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/BRUM71300177.
Diz Que Fui Por Aí - Ao Vivo No Rio De Janeiro / 2012
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d04748591fcb71550b6e976b8df973e3fe0160d8722a79f8b9fb7128150cca9. 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/BRUM71300178.
Escurinha / Escurinho - Ao Vivo No Rio De Janeiro / 2012 / Medley
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78aa914f917db41bba506d702bfcabcb4efc681fc3bbd3534d865b24625a3040. 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/BRUM71300179.
Madame - Ao Vivo No Rio De Janeiro / 2012
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81553666c0c245134afe2d1677b014c53aced331d6dbc932b94e2f5be1c28437. 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/BRUM71300180.
Foi Um Rio Que Passou Em Minha Vida - Ao Vivo No Rio De Janeiro / 2012
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccba471c8a6b3abc450be5661cdb7216761a1776eaad760ec228652bcf1921b9. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/BRUM71300181.
Só O Ôme - Ao Vivo No Rio De Janeiro / 2012
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2f4267b6d3ad24a02a00538728048e1ace89399a42d853c1634a6d8e6474f2b. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/BRUM71300183.
Barracão / Lata D'Água - Ao Vivo No Rio De Janeiro / 2012 / Medley
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4ebd8a0c022d583ba8f8ae6dbc2411fd624d4aff40807f1c47debe0c267fa2f. 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/BRUM71300184.
Batuque Na Cozinha - Ao Vivo No Rio De Janeiro / 2012
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c9f1e219fa620814e079413eeff18be01edefd96966b847a8ee5137e4ae5184. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/BRUM71300185.
Pimenta No Vatapá - Ao Vivo No Rio De Janeiro / 2012
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f85ae87385f2996c1d0ca59e129d45c845e8ad9091efb53d647631897b2c6c9. 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/BRUM71300186.
Vem Chegando A Madrugada / Está Chegando A Hora - Ao Vivo No Rio De Janeiro / 2012
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7347521c5222a41e13c5bc2b930e33da823a597c0407fc8f6f8e901edff9b180. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/BRUM71300187.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc833ebcf94576f556451fed8ecf4da70d1c482306093b6c68888313ba4587931. 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/BRUM71300188.
Eterna Melodia - Waldir Azevedo 100 Anos (Ao Vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd60ae1c7bdc2284ba04c8ebf0e400239d1724f00f8a57e434e2fbb44f94505a4. 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/BRPUI2000100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x534b97023774b25345c90fd983a43886e2935e004fc57f15d7d97d2e61b78867. 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/BRR0E0700002.
Nelson Faria Convida Rogério Caetano: Um Café Lá em Casa
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22d107d0a255ced2c3ea045a848ceb935e0acb2838bd6f45de29fa111978362a. 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/BRUM71201094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64f751795de5098c7b56787fe9400e20e8b21a447bf1f224400160c2e6f08800. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/BRESM0200281.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x942a4b36d1446deb2635e6e849e93382ec572e5cba521245b7753055e31737aa. 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/BREMI0700932.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e9f079bfdd6932c104dad26ef1ccda04dfc1855c210ac060e1d90e118951662. 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/BRESM0200280.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3aa3dceef29304b6656a4a2912b37bc15b88ab7120edc297f04ed493b1588af7. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/BRESM0200109.