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 0xd5a833a7fc86a7a1ed058904b4fa72e5d1764e02edb1f535ee5f34a5d1cfaca8. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e44f406f-b8c6-46ec-8b59-cf012ff16150.json and https://artists.proofprofile.net/proofs/artist/e44f406f-b8c6-46ec-8b59-cf012ff16150.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Panorama do Choro Paulistano Contemporâneo
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 0x1b769b13763ac8d28a089513ceab2033043dd4707049d3136e0718d0be161615. 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/4DM3ro3Cy6MR3Hwu95YFU9.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/4DM3ro3Cy6MR3Hwu95YFU9.
{"copyright_id":"0xb6ede888799abf0ba1779404ab22418d87f2e37a25b1166b0b0298c09b181f79","isrc":"BRGOZ2300017","name":"Samba no Quintal - Ao Vivo","registered_at":"2026-06-10T06:48:20Z","spotify_id":"2GHxdsdL1kXWzs0cLO7uHV","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6ede888799abf0ba1779404ab22418d87f2e37a25b1166b0b0298c09b181f79. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2GHxdsdL1kXWzs0cLO7uHV.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/2GHxdsdL1kXWzs0cLO7uHV.
{"copyright_id":"0x29143dd6fd83c8171a485292707013f2137b796b8003d260c8cd6ad23794e16e","isrc":"BRGOZ2300018","name":"Conselho - Insensato Destino - Ao Vivo","registered_at":"2026-06-07T02:57:32Z","spotify_id":"2PZhjGLm3WVn1wn9TvzVbl","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29143dd6fd83c8171a485292707013f2137b796b8003d260c8cd6ad23794e16e. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2PZhjGLm3WVn1wn9TvzVbl.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/2PZhjGLm3WVn1wn9TvzVbl.
Se Eu For Falar de Tristeza - Quintal do Céu - Ao Vivo
{"copyright_id":"0x93872aa4f400643728106ef67ead9731c726315a57fdaefd0acb1a9f3b2bfaae","isrc":"BRGOZ2300019","name":"Se Eu For Falar de Tristeza - Quintal do Céu - Ao Vivo","registered_at":"2026-06-18T20:04:32Z","spotify_id":"1TlCqW3g0osGXxspPBbfdC","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93872aa4f400643728106ef67ead9731c726315a57fdaefd0acb1a9f3b2bfaae. 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/1TlCqW3g0osGXxspPBbfdC.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/1TlCqW3g0osGXxspPBbfdC.
Parabéns Pra Você - Filososia de Quintal - Ao Vivo
{"copyright_id":"0xca9ce8ccc3113d8f9ea467aa311ac0525446de607813cf89525ee51fc8e9c0b8","isrc":"BRGOZ2300020","name":"Parabéns Pra Você - Filososia de Quintal - Ao Vivo","registered_at":"2026-06-08T14:04:28Z","spotify_id":"503uUgh27WX4MEWH1fLbM8","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca9ce8ccc3113d8f9ea467aa311ac0525446de607813cf89525ee51fc8e9c0b8. 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/503uUgh27WX4MEWH1fLbM8.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/503uUgh27WX4MEWH1fLbM8.
Papai Vadiou - Isso é Fundo de Quintal - Ao Vivo
{"copyright_id":"0x640dbd3c6ea6d5d200a76789a3c7210647d954209849cbbe782277ac9a3088d8","isrc":"BRGOZ2300021","name":"Papai Vadiou - Isso é Fundo de Quintal - Ao Vivo","registered_at":"2026-06-09T20:17:00Z","spotify_id":"6sbawc14Ocd42DsvISZ0qD","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x640dbd3c6ea6d5d200a76789a3c7210647d954209849cbbe782277ac9a3088d8. 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/6sbawc14Ocd42DsvISZ0qD.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/6sbawc14Ocd42DsvISZ0qD.
{"copyright_id":"0x60a39e144754d1d5ac5a5636bbce48a0ffd3f878730c8734c6676ada6e223fc6","isrc":"BRGOZ2300022","name":"O Show Tem Que Continuar - Ao Vivo","registered_at":"2026-06-18T12:05:19Z","spotify_id":"0Z35n59Z0iY7lFn9OqCYAo","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60a39e144754d1d5ac5a5636bbce48a0ffd3f878730c8734c6676ada6e223fc6. 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/0Z35n59Z0iY7lFn9OqCYAo.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/0Z35n59Z0iY7lFn9OqCYAo.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c024bd8581c53953d1ed36d06a4c364558f66dd9374edb8f8f2f4dc1ed47445. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1na2tMrW57TOE6v61nGyHi.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/1na2tMrW57TOE6v61nGyHi.
Mistérios do Peito - Retrato Cantado de Um Amor - Ao Vivo
{"copyright_id":"0xf7d7497cba1a8122d48f79b225ddf2e2bf2dcf3c13222ca3c513626b50ae04e6","isrc":"BRGOZ2300024","name":"Mistérios do Peito - Retrato Cantado de Um Amor - Ao Vivo","registered_at":"2026-06-08T14:13:27Z","spotify_id":"3KF9Xj0eyfIydZgjXoU8bc","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7d7497cba1a8122d48f79b225ddf2e2bf2dcf3c13222ca3c513626b50ae04e6. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/3KF9Xj0eyfIydZgjXoU8bc.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/3KF9Xj0eyfIydZgjXoU8bc.
{"copyright_id":"0xc557201c4e965302412d80c7096346c5a1c988815dde018ca224d9671bbebb5d","isrc":"BRGOZ2300025","name":"Sempre Acesa - Novo Viver - Ao Vivo","registered_at":"2026-06-08T05:28:37Z","spotify_id":"5GxC91hNGz23YrJI4RnNOZ","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc557201c4e965302412d80c7096346c5a1c988815dde018ca224d9671bbebb5d. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/5GxC91hNGz23YrJI4RnNOZ.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/5GxC91hNGz23YrJI4RnNOZ.
Acendeu a Vela - A Comunidade Chora - Ao Vivo
{"copyright_id":"0x0afb80cef51b25f80109870752c942201ca2194522f9d296675ed251472d39ed","isrc":"BRGOZ2300026","name":"Acendeu a Vela - A Comunidade Chora - Ao Vivo","registered_at":"2026-06-23T14:11:26Z","spotify_id":"4ZQUVSjXLbmXqsGuAi3HbW","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0afb80cef51b25f80109870752c942201ca2194522f9d296675ed251472d39ed. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/4ZQUVSjXLbmXqsGuAi3HbW.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/4ZQUVSjXLbmXqsGuAi3HbW.
Mel na Boca - Meiguice Descarada - Ao Vivo
{"copyright_id":"0x05fd0722fdab4ee4a3b4b8e6ae68dc10d43a5681c36db1c1e626ec08e966199e","isrc":"BRGOZ2300027","name":"Mel na Boca - Meiguice Descarada - Ao Vivo","registered_at":"2026-06-23T14:13:27Z","spotify_id":"04Ay4u1NhoyQMfdogMFnSB","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05fd0722fdab4ee4a3b4b8e6ae68dc10d43a5681c36db1c1e626ec08e966199e. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/04Ay4u1NhoyQMfdogMFnSB.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/04Ay4u1NhoyQMfdogMFnSB.
{"copyright_id":"0x4bfcaaa29276713595aa10d85bb9b0cbfccd0c5963b40fba8351b14e5c51e7e3","isrc":"BRGOZ2300028","name":"Andança - Ao Vivo","registered_at":"2026-06-22T07:43:07Z","spotify_id":"5JqoDVQLsHbZ08oMWAETvE","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bfcaaa29276713595aa10d85bb9b0cbfccd0c5963b40fba8351b14e5c51e7e3. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/5JqoDVQLsHbZ08oMWAETvE.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/5JqoDVQLsHbZ08oMWAETvE.
Pra Que Viver Assim? - Fogo de Saudade - Ao Vivo
{"copyright_id":"0xa784ade5cd26c928a5e646c2db512cc09c791148b1fbfc1e5595038d6a3d24b2","isrc":"BRGOZ2300029","name":"Pra Que Viver Assim? - Fogo de Saudade - Ao Vivo","registered_at":"2026-06-22T07:39:57Z","spotify_id":"061gSc0emQjabjJwORyden","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa784ade5cd26c928a5e646c2db512cc09c791148b1fbfc1e5595038d6a3d24b2. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/061gSc0emQjabjJwORyden.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/061gSc0emQjabjJwORyden.
Nos Pagodes da Vida - Água de Chuva no Mar - Ao Vivo
{"copyright_id":"0xb999b9f30ad698c91236115e3b8bb9cba7ff016b9b5cef93381c5404934434ea","isrc":"BRGOZ2300030","name":"Nos Pagodes da Vida - Água de Chuva no Mar - Ao Vivo","registered_at":"2026-06-07T15:13:19Z","spotify_id":"4zdtAjc0CXAU88EgVnlBq4","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb999b9f30ad698c91236115e3b8bb9cba7ff016b9b5cef93381c5404934434ea. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/4zdtAjc0CXAU88EgVnlBq4.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/4zdtAjc0CXAU88EgVnlBq4.
Oyá (Canto de oração) - Sorriso Negro - Ao Vivo
{"copyright_id":"0x66e6fc4226741b367ae8622ba6a69d613f7c3073cc81731896018f56af391cbb","isrc":"BRGOZ2300031","name":"Oyá (Canto de oração) - Sorriso Negro - Ao Vivo","registered_at":"2026-06-23T14:09:49Z","spotify_id":"411bMyE84qfMAyEvxMS2yX","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66e6fc4226741b367ae8622ba6a69d613f7c3073cc81731896018f56af391cbb. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/411bMyE84qfMAyEvxMS2yX.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/411bMyE84qfMAyEvxMS2yX.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25299bae2adc66ddc58af0f22632b446823f378a803826c8980cac9f423d32b3. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/3ItYb5QGB0ZNVqnHwbiCb8.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/3ItYb5QGB0ZNVqnHwbiCb8.
{"copyright_id":"0x91dfcd2df72c464da738a748df8cf52c74940f6fb936775d8acd93d8e0f324bc","isrc":"BRGOZ2300033","name":"Prettos em Ritmo Puro - Ao Vivo","registered_at":"2026-06-27T16:11:09Z","spotify_id":"3dSwJ4BcjF1SKfB1x67GLD","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91dfcd2df72c464da738a748df8cf52c74940f6fb936775d8acd93d8e0f324bc. 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/3dSwJ4BcjF1SKfB1x67GLD.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/3dSwJ4BcjF1SKfB1x67GLD.