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 0x5666ae96aef121e4526711a3934fca3f239f1afd4b66eb545bf848072d141513. 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/3b9159f6-502b-4af6-8a16-ab7bce43403a.json and https://artists.proofprofile.net/proofs/artist/3b9159f6-502b-4af6-8a16-ab7bce43403a.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
Melhor Eu Ir/Trovão/Seja Bem Vinda/Nada Vai Separar/Ligando os Fatos/Não Tem Perdão/Eternamente no Meu Coração/Luz na Escuridão - Cover
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 0xb2e4edcc80a4d446298fe469cf0d0b02377cf8e64d6bb15d37985a67593079c5. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNJZ2390683 — a six-check JSON result.
Manda Audio/Estrela/Deixa Acontecer/Tchau e Bença/ Eternamente Feliz/Nossa Escola/Seu Balancê - Cover
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x627ecbea4d28da76fac58bbd89d98c7a8c7da8d7b69d84d1394b9786db267142. Chain 2 (Bitcoin): anchored in block 958567 (2026-07-18T15:22:40Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNJZ2390684 — a six-check JSON result.
Ideias do Amor/Pede Dentro/Máquina do Tempo - Cover
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f02cd9161f5011ceb9a2585d519e6e0e9c723e206eb4b245b5ee23c0e773905. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNJZ2390685 — a six-check JSON result.
Que Saudade/E Agora?/Agora Viu Que Me Perdeu e Chora/Deixa Alagar/Valeu pra Aprender - Cover
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58318507228d85dfdccf83ae376800df02901df535256a383a3c235e8fee06a8. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNJZ2390686 — a six-check JSON result.
Toda Vida Procurei/Falta/Proposta Indecente/Cenário de Novela - Cover
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fd63ddb064577d7ede4e2787f3fac7f5fe8de314e45b744b57f0a16bba75560. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNJZ2390687 — a six-check JSON result.
Modo Avião/A Tua Voz/700 por Hora - Cover
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9058bbbb9b99ec4d2272a7ad2f5408e2b990fd3705f7b49814a278a7be69dcb2. Chain 2 (Bitcoin): anchored in block 958907 (2026-07-20T16:17:58Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNJZ2390688 — a six-check JSON result.
Por Amar Você/User/Quer Saber de uma Coisa - Cover
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bbe8fb82bfe95d9aab8992d3c962a21aa121bb787aebf533440a8b51620effa. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNJZ2390689 — a six-check JSON result.
Deixa Tudo Como Tá/Depois do Prazer/Azul Sem Fim/Fulminante/Engano/12 de Junho/Sinais - Cover
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20e8c139894a23ceb6a6a4cc37585aa92ec6b884de7fa4072a1a4d75a267a96e. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNJZ2390690 — a six-check JSON result.
Zé Tamborzeiro/Alguém Me Avisou/Quando Eu Contar/A Macumba da Nega/Vou Botar Teu Nome na Macumba/Brincadeira Tem Hora/Bagaço da Laranja/Camarão Que Dorme a Onda Leva/É Preciso Muito Amor/O Irene/ Vai La Vai La
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bd5a2f22295765951724ec8e0cae68460713292b6e0f6371b9b5d7aec4073de. Chain 2 (Bitcoin): anchored in block 959013 (2026-07-21T13:39:11Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNJZ2390691 — a six-check JSON result.
Papo Furado (Eu Quero é Pagode) [Ao Vivo]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a4b5ac72f0d3e64eb578cdd96255b63aa652df8f4f39136e3699ff7ebda7099. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTPX2443607 — a six-check JSON result.
Castelo de um quarto só / Moço da balinha (Ao Vivo)
Saudade de nós / Beijo doce / Frenesi (ao vivo)
Saudade de nós / Beijo doce / Frenesi - ao vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf662370591b37b669509f5e62f09a70d1b67e16c946fc391d72fa8b6f9fb9577. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T12:33:25Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BRF5V2500012 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe53ac17ae04e06d4a1dac05ae4451041a41c9ec45a3abbc14b72998fcf45909c. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BRF5V2500018 — a six-check JSON result.
Melhor amiga da minha namorada / Que situação / Efeito do amor / Quem de nós (ao vivo)
Estonteante / Casa azul / Questão familiar (ao vivo)
BLOCO #05 OS CLASSICOS QUE MACHUCAM (Ao Vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e62051e980cb414ae5e9f1c5ee5b755e8b536f3a74020914809ee73d1790b41. Chain 2 (Bitcoin): anchored in block 959163 (2026-07-22T18:47:29Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BRF5V2500038 — a six-check JSON result.