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 0x06e535ece68779eb5f2c1a1a66e71e9cd591c982c88933fa64df1526836130fe. Chain 2 (Bitcoin): anchored in block 953765 (2026-06-15T08:55:24Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/bcc407a5-5b1e-410b-93d5-32c28e84260b.json and https://artists.proofprofile.net/proofs/artist/bcc407a5-5b1e-410b-93d5-32c28e84260b.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
Churrasco do Cristiano e Maldonado (Ao Vivo)
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 0x30070d8eebc18bad2353eaeaa266abc2846df9218027921527dea6d5c7e5e675. Chain 2 (Bitcoin): anchored in block 958901 (2026-07-20T15:07:00Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZEQU2068936 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x682ec58b68bc95ddd739e720f312cad29e7467e0ee021647c8b85950cd278376. Chain 2 (Bitcoin): anchored in block 959076 (2026-07-21T23:41:40Z), 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/QZEQU2068937 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x389da013062721e26e27cf4b4073d84f9f0f187726ac8b4d22f9b076670d979e. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZEQU2068938 — a six-check JSON result.
Por um Gole a Mais / Pagina de Amigo / Agenda Rabiscada
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d4920e999b0981c97f73a9910e9041f8b85d3570d7e5b3d87e40adf26d3421d. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), 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/QZEQU2068939 — a six-check JSON result.
Seu Amor Ainda É Tudo / Dama de Vermelho
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80fd9568711ce09c51d675fb77dfb8f1fdd433a08f909268244849761aff8cba. Chain 2 (Bitcoin): anchored in block 958517 (2026-07-18T07:54:29Z), 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/QZEQU2068940 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf19e3d581c284584d32e86297a1c2170b5afade3044bb560bc359bdbbdeb620b. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T09:45:25Z), 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/QZEQU2068941 — a six-check JSON result.
Só Pensando em Você / Bijuteria / Acorrentado
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58cb1bce95b8198ba40e47577bb2f912a9ceeafd6fd590f93a8a5fb41bdecb05. Chain 2 (Bitcoin): anchored in block 958903 (2026-07-20T15:22:45Z), 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/QZEQU2068943 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e9f3ce808efbd181bb36724b1c2015ade5463ce410440ed4f5578342f6656cb. Chain 2 (Bitcoin): anchored in block 958526 (2026-07-18T09:09:53Z), 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/QZEQU2068944 — a six-check JSON result.
Sapato 36 / Amor a Três / Estrada da Vida
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe50d6266e4ba475d11d04d1ba46274d673d0877111b7e1348f4dce144279db74. Chain 2 (Bitcoin): anchored in block 958828 (2026-07-20T05:21:06Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZEQU2068946 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d4b1a548f3d0b7b71731b4b0b949e1953c4d740f23dc7fbcf9784a9269bd0aa. Chain 2 (Bitcoin): anchored in block 959065 (2026-07-21T22:00:50Z), 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/QZEQU2068947 — a six-check JSON result.
Beijo Problema (feat. Humberto & Ronaldo)
Pout Pourri: Coração de Pedra / Por Te Amar de Mais / Apenas um Sorriso
Pout Pourri: Garçom / Seresteiro da Noite / Princesa
Pout Pourri: Meu Jeito de Sentir / Meu Disfarce / Ausência
Meu Jeito de Sentir / Meu Disfarce / Ausência
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb806f19c6964eae156a284be0d12ea3dd33299fc9c463be9504cdb8e5c321e21. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZEQU2223543 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33772296edec8faa0ac1dd91ab1aec92721e6b8d31199311c27fce15fcedb400. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/QZEQU2223544 — a six-check JSON result.
Coração de Pedra / Por Te Amar de Mais / Apenas um Sorriso
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4761dfcd0460d69d23557c82d420dccc92654b80bffe555be0095890caea47fd. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/QZEQU2223545 — a six-check JSON result.
Paixão Proibida / Colcha de Retalhos / Último Adeus
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfe874bae9003edbb3b0198dbd6f7cbf1bb4a580e510e0b93a8aaeb0f442e912. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/QZEQU2223546 — a six-check JSON result.
Corpo e Alma / Na Hora do Adeus / No Mesmo Lugar
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55f14d6175fa416fde1d0484daf4bdd0389ddba45b751a6c39b5ed46144e7504. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZEQU2223547 — a six-check JSON result.
Borbulhas de Amor / Um Degrau na Escada / Alô
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff5b475ae2f6ee00b72753c09e89636a69ea0310274838cb1187ac3af1bdf9e1. Chain 2 (Bitcoin): anchored in block 958506 (2026-07-18T06:14:51Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZEQU2223550 — a six-check JSON result.