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 0x15c1b19f5e804371e02e43f4e10690c1c957cd02b05863f262b7612df67660b2. 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/e940c25d-ec55-4c10-baba-0ecfe8ccebb1.json and https://artists.proofprofile.net/proofs/artist/e940c25d-ec55-4c10-baba-0ecfe8ccebb1.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 0x156e6b6a8cca62938fb764cbb2584af9e90fd73022a1d6c1a9bf136696ea8d1c. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T15:38:35Z), 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/BRD1E1900137.
Referências Vol. 1 - É Por Isso que Eu Canto Assim
Nunca Vi Você Tão Triste / Meu Modo de Ser / Meu Poeta
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1506bc75d6bd972e4a2e81133ed7aec1914fadf7ade2ee1fd5fd76cf30e194bc. 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/BCEN22000027.
Ponto de Ogum (Introdução) / Alma de Guerreiro (feat. Serjão Loroza)
Escasseia / Corda no Pescoço (feat. Dudu Nobre)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1a9becfeac845aac06b214f2a99cb38afaa908b28a486ac8ecc13fb7a53d308. 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/BCEN22000012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x067d9e8b40b349af24bc6763851bc56e65af869c0d657b6cd81d5bdd99b2989f. 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/BCEN22000014.
Na Linha do Mar / Você Passa e Eu Acho Graça / Minha Festa
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6204665989412acffa1b52a79a592402974a7edd6c09fa68a8e66a3d363e42df. 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/BCEN22000013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x192aa741aeaf735e04326b14aef812ffd806a9b7cb5a0c5b35f6436a6b5bee83. Chain 2 (Bitcoin): anchored in block 960160 (2026-07-29T22:48:59Z), 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/BCEN22000020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80f277bbacdd951e3cd0e31ab0d6814e9a3f7ee270baeba71da76a06e8f042f3. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/BCEN22000022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1506bc75d6bd972e4a2e81133ed7aec1914fadf7ade2ee1fd5fd76cf30e194bc. 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/BCEN22000027.
A Flor e o Samba / Malandro Sou Eu / Não Quero Saber Mais Dela
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1566b1ef171853e27f0da78988feeef2c54859e381989a0d06df2f4cb4a7c64. 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/BCEN22000028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x578910be1da75a4c0bde8f42b42bb855b91d7eb70e3e54783c33c4009005c6e5. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/BCEN22000032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03e5d93d40d85f462e53caf69eee76532808fe63656785c8dd3decb9f8f0ba6d. 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/BCEN22000033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05015a3c133611c46de365ad590efcaa2d4c2637303aad3c1da650d8e979816e. 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/BCEN22000036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc02fcc540e0680b0ff61f2d3d9badc33cadb9a25730f14a75c80d4aabaca91b1. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/BCEN22000040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1566b1ef171853e27f0da78988feeef2c54859e381989a0d06df2f4cb4a7c64. 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/BCEN22000028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05015a3c133611c46de365ad590efcaa2d4c2637303aad3c1da650d8e979816e. 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/BCEN22000036.
Andar com Fé / Alegria, Alegria / Vai Passar
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1c29482b997b83347205948426cb6f8c33ce590aff725c2e258798e066ad313. Chain 2 (Bitcoin): anchored in block 960099 (2026-07-29T11:30:20Z), 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/BCEN22000044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb049e3b214a3322bee766e312de26787695b1fafa24b11ad30774db8b9fd821b. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/BRC832300146.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b5317e857b15175d20233947235f001ff099952220c75695665f944eb77bd4e. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/BRC832300260.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bae4f3cb4d5a67496c439fa68491a4803d7895f5d91ca27352175d9f8ceadc1. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/BRC832300261.
Meu Axé (Cantigas De Terreiro, Ao Vivo No Cacique De Ramos)
Oxalá - (Oxalá O Criador / A Força Do Divino) - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca23c6a055545efcaf7f8cd7b91b317fa16501693fb3e639e703eed3fee57194. Chain 2 (Bitcoin): anchored in block 957888 (2026-07-13T17:43:59Z), 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/BRC832400368.
Ogum - (O Filho De Ogum / Bandeira Linda De Ogum / Ogum Beira Mar) - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f1adaf340ac773910ce97f78f5c6b4452aca5b5991eceab002cee919252fab3. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/BRC832400369.
Oxóssi | Caboclo | Boiadeiro - (Oxóssi É Nosso Protetor / Festa De Umbanda / Chapéu De Couro) - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1073e09e26c30d9af49e7a29262d7c5f59975c0827b8380d6dfa3a1e3a0f4d78. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/BRC832400370.
Oxum - (Nuvem De Poeira D'Água / Brilhou A Estrela Matutina) - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe293f1a9a9fe744fcfa19c2c9a8ed27c87584e6eb51f3c6dfc3f2c787f8c21dc. Chain 2 (Bitcoin): anchored in block 957888 (2026-07-13T17:43:59Z), 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/BRC832400371.
Iansã - (Dona Dos Ventos / Força De Oyá) - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x997cf1e35367985e8740bfbf5f58cd4383adedb7cf9d2e1edb7287e397766cf6. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/BRC832400372.
Iemanjá | Marinheiro | Baiano - (Sonhei Que Estava Na Beira Da Praia / Marinheiro Da Barca De Ouro / A Flor Da Laranjeira) - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf835b7068463d00a9e05ce5bee7054afde0272d8b066f3fc5cd0ee3549245e90. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/BRC832400373.
Nanã | Preta-Velha - (Orixá Da Chuva / Na Barra Da Sua Saia / Casca De Côco) - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9ed6d624aa48b6233e39a57f832af6a2812fcc9ae05a8d1fb97ee364eac2b98. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/BRC832400375.
Obaluaê | Preto-Velho - (Atoto Obaluaê / Ele É Curador / Fui Pedir As Santas Almas) - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ccac9943c76f240dd93d8ffa14e2d9ad414cf2d1f51e022ccb21be5bfaa8ffe. Chain 2 (Bitcoin): anchored in block 958368 (2026-07-17T05:03:25Z), 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/BRC832400376.
Ibeijada - (Antes Do Sol Nascer / Na Bahia Tem Um Côco / Na Cabeça De Vocês) - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b1bddf3deb721f2215a4bc7c09b293a6fbeea2eba3904858677f50a14ecf6ae. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/BRC832400377.
Cigano - (Numa Noite Linda / Cigana De Fé) - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28f8e0af4658a4236d72ec9fd9097936502615a002a90755f04c7cb83fac544d. Chain 2 (Bitcoin): anchored in block 956620 (2026-07-04T07:11:13Z), 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/BRC832400378.
Maria Navalha - (Toma Cuidado Nego / Virou Notícia Na Favela) - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9aa6d421461ef206b2ed46dd9f6540e8d77afc82a660178342319f770b76e5ec. Chain 2 (Bitcoin): anchored in block 957882 (2026-07-13T16:48:10Z), 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/BRC832400380.
Pombagira - (Pombagira Menina / Deu Meia Noite) - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfb1092b820fa94635e5f5b8361116943a309186997d19aeb31a8e6a86434d2d. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/BRC832400381.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79ea60028db3377799cbdca3795879f184dff4c480bd7ffa8e92ab3391313343. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/BRC832400383.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefe8de3d4d8278a5e3bc05628acb08f96444a044f40464c8853e852b55e601e9. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/US7VG2141383.