1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0x7671661607f3eb3062ad63a6c08b324ebb391af2840379464c73a75cf23adb32. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/766c3e20-df70-4617-af15-081a499dac93.json and https://artists.proofprofile.net/proofs/artist/766c3e20-df70-4617-af15-081a499dac93.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Quem Vai Trazer de Volta o Amor - Remasterizado
O Que É Que Eu Sou Sem Você (Nada Nada Nada)
Pedaço de Minha Vida, 60 Dias Apaixonado (Pout-Pourri)
Tempo Ao Tempo / A Noite do Nosso Amor - Ao Vivo
Telefone Mudo / Ainda Ontem Chore de Saudade - Ao Vivo
Pedaço de Minha Vida / 60 Dias Apaixonado - Ao Vivo
Ilusão Perdida / Mulher Sempre Mulher - Ao Vivo
O Beijo do Adeus / Sublime Renúncia / Último Adeus - Ao Vivo
Eu Disse Não / Esta Noite Como Lembrança - Ao Vivo
Vivendo Longe Do Meu Bem / As Andorinhas
O Que Tem A Rosa / Cai Sereno / Tchau Amor
O Que E Que Eu Sou Sem Voce (Nada, Nada, Nada)
O Beijo do Adeus / Sublime Renuncia / O Último Adeus
{"copyright_id":"0x5af76fb3f9a9fa8b7b45e420b04fe1fcaa94f23d0d7b9a178258a77a1678c286","isrc":"BR5DP1200005","name":"Amor de Primavera - Ao Vivo","registered_at":"2026-06-29T05:08:35Z","spotify_id":"6FW553I1FP9ohTSk7V3Z4d","type":"track"}
1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5af76fb3f9a9fa8b7b45e420b04fe1fcaa94f23d0d7b9a178258a77a1678c286. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6FW553I1FP9ohTSk7V3Z4d.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/6FW553I1FP9ohTSk7V3Z4d.
Pot Pourri: o Que Que Eu Sou Sem Você (Nada, Nada) / Onde Anda Você - ao Vivo - Ao Vivo
Pot-Pourri: Asa Branca - Moreninha Linda - ao Vivo - Ao Vivo
Pot-Pourri: Não Põe a Mão no Meu Chapéu / Coração de Cowboy / Peão Apaixonado - ao Vivo - Ao Vivo
Pot-Pourri: o Que Tem a Rosa / Cai Sereno / Tchau Amor - Brincando Com a Viola - ao Vivo - Ao Vivo
Pot Pourri: O Que Que Eu Sou Sem Você (Nada, Nada) / Onde Anda Você - Ao Vivo
Pot Pourri: Asa Branca - Moreninha Linda - Ao Vivo
Pot Pourri: Não Põe A Mão No Meu Chapéu / Coração De Cowboy / Peão Apaixonado - Ao Vivo
Pot Pourri: O Que Tem A Rosa / Cai Sereno / Tchau Amor - Brincando Com A Viola - Ao Vivo
O Que É Que Eu Sou Sem Você - Nada Nada Nada
O Beijo de Adeus / Sublime Renúncia / O Último Adeus - Ao Vivo
O Beijo do Adeus / Sublime Renúncia / O Último Adeus
O Que É Que Eu Sou Sem Você - Nada, Nada, Nada, Ao Vivo
Pot-Pourri: É Segredo / Ô de Casa, Ô de Fora - Ao Vivo
Eu Me Sinto Bem - Estou Apaixonado Por Você, Ao Vivo
No Céu dos Braços Teus - El Condor Pasa, Ao Vivo
O Que É Que Eu Sou Sem Você (Nada, Nada, Nada)
Pot-Pourri: É Segredo / Ô de Casa, Ô de Fora
Eu Me Sinto Bem (Estou Apaixonado Por Você)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf25e56a599926a1702c9fc01271221e3907b750a1951921cfcf0a9265f9c8d8b. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6WjH1TQt2j2LhgJzWhEYuC.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/6WjH1TQt2j2LhgJzWhEYuC.
Canarinho do Peito Amarelo / Pombinha Branca
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x452f9f3e59fde69c7a74611ba9a214c82dad5d2da37d77cf6111d1c32e3dfa42. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/7zzYJbDaDnAuYCZXtDuP9n.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/7zzYJbDaDnAuYCZXtDuP9n.
{"copyright_id":"0x8865821e34fff73f2e7c5890b41f3fa088f52dc5b0dab7eb954ba5069dd386fe","isrc":"BR5DP2200011","name":"As Águas de São Francisco","registered_at":"2026-06-29T14:27:12Z","spotify_id":"73INqjOuB6wAAb44OUbSnu","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8865821e34fff73f2e7c5890b41f3fa088f52dc5b0dab7eb954ba5069dd386fe. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/73INqjOuB6wAAb44OUbSnu.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/73INqjOuB6wAAb44OUbSnu.
{"copyright_id":"0x213db141ab48505af0c260e46995c515ccaee504704d55e6b0f6b556fcddcc05","isrc":"BRAPI0702104","name":"Hora Certa","registered_at":"2026-06-05T05:13:14Z","spotify_id":"7L2gXhGoIuxEXJMBAGSGll","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x213db141ab48505af0c260e46995c515ccaee504704d55e6b0f6b556fcddcc05. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/7L2gXhGoIuxEXJMBAGSGll.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/7L2gXhGoIuxEXJMBAGSGll.
{"copyright_id":"0xaf43788050cb8a4b5f6012291717647bbdaa4df7c8ace34061bd459b8e30bbcc","isrc":"USA371001957","name":"Amor de Primavera","registered_at":"2026-06-27T02:29:48Z","spotify_id":"3g81AzGlotLKdHlCOUgFCV","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf43788050cb8a4b5f6012291717647bbdaa4df7c8ace34061bd459b8e30bbcc. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/3g81AzGlotLKdHlCOUgFCV.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/3g81AzGlotLKdHlCOUgFCV.
Sertão Caipira Universitário, Vol. 1 (Ao Vivo)
{"copyright_id":"0x2b0c7c06cc16f2bbc3c8341d870b133ba0184f57b959e9d05f09b8c30ec78bed","isrc":"BRAPI0701440","name":"O Coração Chora - Ao Vivo","registered_at":"2026-06-09T08:32:43Z","spotify_id":"1eKBBRkQ4IFIdPICozDw22","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b0c7c06cc16f2bbc3c8341d870b133ba0184f57b959e9d05f09b8c30ec78bed. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1eKBBRkQ4IFIdPICozDw22.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/1eKBBRkQ4IFIdPICozDw22.
{"copyright_id":"0x8d493df29b408e593d8878970fd7b1dd15c7fd2dce38a56e353a39db9139fd97","isrc":"BRAPI0701441","name":"Nada Mudou - Ao Vivo","registered_at":"2026-06-07T00:39:07Z","spotify_id":"2j09swntsLfuNJKu9Srhv2","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d493df29b408e593d8878970fd7b1dd15c7fd2dce38a56e353a39db9139fd97. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2j09swntsLfuNJKu9Srhv2.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/2j09swntsLfuNJKu9Srhv2.
{"copyright_id":"0xe5d0982a7a01993f5eee8e2c04bc2de0c6ae50624fba186a98104234438f9fe6","isrc":"USA371001943","name":"Asa Branca /Moreninha Linda - Ao Vivo","registered_at":"2026-06-19T11:26:01Z","spotify_id":"574OC3wxinHdhhgN3jCZqT","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5d0982a7a01993f5eee8e2c04bc2de0c6ae50624fba186a98104234438f9fe6. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/574OC3wxinHdhhgN3jCZqT.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/574OC3wxinHdhhgN3jCZqT.
{"copyright_id":"0xb2ad2c2a1ad1c3e1e4faf66f23e6a360eb16d48a147848a810ce6e05d40375e7","isrc":"BRAPI1000058","name":"Amor de Primavera - Ao Vivo","registered_at":"2026-06-01T23:38:32Z","spotify_id":"14gsmTlZf3r1l5IYUzetWT","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2ad2c2a1ad1c3e1e4faf66f23e6a360eb16d48a147848a810ce6e05d40375e7. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/14gsmTlZf3r1l5IYUzetWT.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/14gsmTlZf3r1l5IYUzetWT.
Quando Deus Quer, Ninguém Segura - Ao Vivo
{"copyright_id":"0x4834575c1065a18f5cf29eb4d53d6e7702af6a202d2eccbe1eb84f7d967442d1","isrc":"BRRGE1505633","name":"Amor de Primavera - Ao Vivo","registered_at":"2026-06-19T11:24:40Z","spotify_id":"40mecs9hcLqZLT3Smcsbw9","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4834575c1065a18f5cf29eb4d53d6e7702af6a202d2eccbe1eb84f7d967442d1. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/40mecs9hcLqZLT3Smcsbw9.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/40mecs9hcLqZLT3Smcsbw9.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6484b55c366042a0e24190e7a135ea33dc340643b074a10fc0076d75996ed248. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/4jUbOJM5VQ4NvsdI1XLkJr.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/4jUbOJM5VQ4NvsdI1XLkJr.
{"copyright_id":"0x0a822e98b36bc6bd24893fcbf8b67231dae1fe42a4e16ec19392f93453e16f5e","isrc":"BRSME2004731","name":"Vale a Espera - Ao Vivo","registered_at":"2026-06-09T06:28:09Z","spotify_id":"2PicgIvUO0Ma0klPSHlNwA","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a822e98b36bc6bd24893fcbf8b67231dae1fe42a4e16ec19392f93453e16f5e. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2PicgIvUO0Ma0klPSHlNwA.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/2PicgIvUO0Ma0klPSHlNwA.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1dc5c5981ddad5abb219230742080c47ad16d387960d1c100ef2659e347d438f. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/3LY4Xz6BbyQ3pc7ChPpI9j.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/3LY4Xz6BbyQ3pc7ChPpI9j.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3f78e196a32f897d6dcd6330efc6c77f47a722c8977da018717c0b258d3f594. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/28sbFGz1XBnpBtxEUZIAIR.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/28sbFGz1XBnpBtxEUZIAIR.
Vou Tomá um Pingão / Rio de Lágrimas (Rio de Piracicaba) - Ao Vivo
Brasileiro Sim Senhor (Deluxe) [Ao Vivo]
{"copyright_id":"0xde95149eaa881ceb5d71921dd469e4e9c131731a99dcded4cae15f8dabd67cad","isrc":"BX1XL2300020","name":"Vou Tomá um Pingão / Rio de Lágrimas (Rio de Piracicaba) - Ao Vivo","registered_at":"2026-06-20T06:24:26Z","spotify_id":"4l67lMNFQCZl7ildBgkiTZ","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde95149eaa881ceb5d71921dd469e4e9c131731a99dcded4cae15f8dabd67cad. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/4l67lMNFQCZl7ildBgkiTZ.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/4l67lMNFQCZl7ildBgkiTZ.