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 0x337e8ede74a853ea3db06a689407ba0e7251719372c081d52e0555908d4bdd8d. 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/5acce4cb-86d1-4506-9dee-64bd4fde9d61.json and https://artists.proofprofile.net/proofs/artist/5acce4cb-86d1-4506-9dee-64bd4fde9d61.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
{"copyright_id":"0x88b673c078e0b9f4bb64b495419266d53aa0f1bf925dd660ca22c686cfd3fa50","isrc":"BRMVP0400537","name":"Licor De Amor","registered_at":"2026-06-22T07:11:36Z","spotify_id":"5xrtqbxbyKUkxXxgVIWNAK","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 0x88b673c078e0b9f4bb64b495419266d53aa0f1bf925dd660ca22c686cfd3fa50. 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/5xrtqbxbyKUkxXxgVIWNAK.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/5xrtqbxbyKUkxXxgVIWNAK.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b78ff11e3a8eb826bdafb3cd6069015181c6d4bbfd63958bf53f6d23001a6f8. 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/2rUxn5p9n7hvm2H4U8pP8d.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/2rUxn5p9n7hvm2H4U8pP8d.
{"copyright_id":"0x86b82f04bc964932f46fbface2eca3b3c4b72384abedc3bc06d5e992c15ca242","isrc":"BRMVP0400541","name":"Franguinho Na Panela","registered_at":"2026-06-21T03:02:16Z","spotify_id":"6p3BU7CJF9mVtlS55okgJC","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86b82f04bc964932f46fbface2eca3b3c4b72384abedc3bc06d5e992c15ca242. 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/6p3BU7CJF9mVtlS55okgJC.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/6p3BU7CJF9mVtlS55okgJC.
{"copyright_id":"0x3538df39dd22c05735dc8db0fd7de782fde29e2adf8dbcff50dfc8e9837bc367","isrc":"BRMVP0400543","name":"O Grande Milagre","registered_at":"2026-06-23T06:52:27Z","spotify_id":"3dgLvkYqqgzkjVOelr8qLg","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3538df39dd22c05735dc8db0fd7de782fde29e2adf8dbcff50dfc8e9837bc367. 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/3dgLvkYqqgzkjVOelr8qLg.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/3dgLvkYqqgzkjVOelr8qLg.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef5a3f0cc07dc07f675bf11d333370e533128eb06569f1ce189fb36f8c55b327. 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/3c87VRvFrm26YNmUWIEZHn.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/3c87VRvFrm26YNmUWIEZHn.
{"copyright_id":"0x17d0db42874a5ab5c4f5e86ba30fe6ec1b4b6d522fc9fdd6e66eb3f059e4beaa","isrc":"BRMVP0400550","name":"Caboclo Na Cidade","registered_at":"2026-06-19T11:33:01Z","spotify_id":"1XCCj8KRFv41gsbwdgNs7w","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17d0db42874a5ab5c4f5e86ba30fe6ec1b4b6d522fc9fdd6e66eb3f059e4beaa. 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/1XCCj8KRFv41gsbwdgNs7w.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/1XCCj8KRFv41gsbwdgNs7w.
A Noiva do Meu Bairro / O Abajur / Copo de Cerveja
Hoje Eu Não Posso Ir / Rio de Lágrimas / Arapô
Esquina do Adeus / Um Abraço e um Adeus / Meigas Lembranças
Golpe de Mestre / Raízes do Amor / Saudade
O Grande Milagre / Filho Pobre / Casa de Pedra
Estrela de Ouro / Velho Amor / Amargurado
Duas Camisas / Arrependimento / Escultura Divina
Viola Divina / Pagode em Brasilia / Chora Viola
Comitiva Barretos Rodeio - o Chão Vai Tremer!
60 Anos do Pagode de Viola Caipira no Brasil
{"copyright_id":"0x0d4971121aa4af30fe94ea58d7298d602f9ba68782e0f6adb2fafe86b258c4b9","isrc":"BRAPI0501203","name":"Coração De Pedra - Rancheira","registered_at":"2026-06-22T08:01:17Z","spotify_id":"6N9nfPjTWYiFt84EzWThJl","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d4971121aa4af30fe94ea58d7298d602f9ba68782e0f6adb2fafe86b258c4b9. 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/6N9nfPjTWYiFt84EzWThJl.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/6N9nfPjTWYiFt84EzWThJl.
A Arte De José Fortuna - 20 Anos de Saudade
{"copyright_id":"0xbd6aaea58dbd1a1be2a65baf86a69a2b4f61a6db14de56c1466a48ccafe4cb44","isrc":"BRAPI0301800","name":"Último Adeus","registered_at":"2026-06-20T11:33:20Z","spotify_id":"4DNQ4eCQeAkV3YBEgfv9Qo","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd6aaea58dbd1a1be2a65baf86a69a2b4f61a6db14de56c1466a48ccafe4cb44. 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/4DNQ4eCQeAkV3YBEgfv9Qo.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/4DNQ4eCQeAkV3YBEgfv9Qo.
Pot Pourri: Casarão / O Vai e Vem do Carreiro / Carreador / A Porteira / Saudadona / Fala de Antonio Carvalho
{"copyright_id":"0x0eb81b66d6e29063ecce5fa75556382367275ce988b4a43816633ce2b18d0c26","isrc":"BRAPI0301805","name":"Pot Pourri: Casarão / O Vai e Vem do Carreiro / Carreador / A Porteira / Saudadona / Fala de Antonio Carvalho","registered_at":"2026-06-25T14:32:27Z","spotify_id":"3eJ8xcK1TMWhF5kunKi8hx","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0eb81b66d6e29063ecce5fa75556382367275ce988b4a43816633ce2b18d0c26. 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/3eJ8xcK1TMWhF5kunKi8hx.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/3eJ8xcK1TMWhF5kunKi8hx.
{"copyright_id":"0x62371626ee1959c3e9dd3d3a85f7da834c431bce31652f17d6a2bf330c51a96b","isrc":"BR03D1401237","name":"Colcha de Retalhos - Ao Vivo","registered_at":"2026-06-11T10:22:32Z","spotify_id":"6aY3vHm8If9jdZAcdrPva1","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62371626ee1959c3e9dd3d3a85f7da834c431bce31652f17d6a2bf330c51a96b. 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/6aY3vHm8If9jdZAcdrPva1.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/6aY3vHm8If9jdZAcdrPva1.
Casarão / O Vai e Vem do Carreiro/ Carreador / A Porteira / Saudadona
{"copyright_id":"0x4b7af0d7c8dc066badbf311abd81771f064077e38a5fd1301dc1582ef93b5e87","isrc":"BRJLS1600106","name":"Mocinhas da Cidade","registered_at":"2026-06-23T06:49:52Z","spotify_id":"5cUQYjDCjvJNnmwuMjvEkf","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b7af0d7c8dc066badbf311abd81771f064077e38a5fd1301dc1582ef93b5e87. 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/5cUQYjDCjvJNnmwuMjvEkf.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/5cUQYjDCjvJNnmwuMjvEkf.