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 0x91df5a6c777dde8eaf9f620291123d9deb91d3c7da885218292ff0561f8176a5. 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/56bc27a8-f590-4006-bb5d-ac7d4a61dce9.json and https://artists.proofprofile.net/proofs/artist/56bc27a8-f590-4006-bb5d-ac7d4a61dce9.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
{"copyright_id":"0xd5b5bacb3a4d66f8c839ed29532f0f9db66be8a329c2c542350ca840762b57d1","isrc":"ES23F2500214","name":"Atabacada Envolvente","registered_at":"2026-06-07T13:46:43Z","spotify_id":"17jNFoJMxdaWcp0npmV5qd","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 0xd5b5bacb3a4d66f8c839ed29532f0f9db66be8a329c2c542350ca840762b57d1. 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/17jNFoJMxdaWcp0npmV5qd.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/17jNFoJMxdaWcp0npmV5qd.
No Passageiro do Hyundai (feat. DJ Kauan NK)
{"copyright_id":"0xdbdc68d32cec5259d168b2326e4c7813b49cccc2ab61447f40d6c3226e7541ed","isrc":"BKF442400235","name":"Quando Soco o Piru Todo","registered_at":"2026-06-08T17:30:26Z","spotify_id":"6JAsK3f9HyVwJgm1wdqup1","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbdc68d32cec5259d168b2326e4c7813b49cccc2ab61447f40d6c3226e7541ed. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6JAsK3f9HyVwJgm1wdqup1.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/6JAsK3f9HyVwJgm1wdqup1.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93c6beee82288a5077f0d149911b095fe45e482bbf873aa0167e21785efaae6f. 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/79o2ThDsxOvLUZ6ZWDnUUj.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/79o2ThDsxOvLUZ6ZWDnUUj.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x391f4d92b5267c844afdb932251e783f39e8c8b01646402e1baf6ec266b8f787. 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/4iPeEEkgHPZg0BQY9I3N1y.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/4iPeEEkgHPZg0BQY9I3N1y.
{"copyright_id":"0x148a9aa516a0c5f7d7634975bc9ba5a78144aeb573b2dde750a7cf97a120857d","isrc":"BX4IU2421600","name":"FOGUETÃO ROUBADO","registered_at":"2026-06-09T17:41:26Z","spotify_id":"0FIsK5eVacPElGLRX0XFw8","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x148a9aa516a0c5f7d7634975bc9ba5a78144aeb573b2dde750a7cf97a120857d. 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/0FIsK5eVacPElGLRX0XFw8.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/0FIsK5eVacPElGLRX0XFw8.
Quer Me Dar Cê Fala, Vou Negar Peru pra Tu Não
Aglomeração de Puta no Barraco (Slowed + Reverb)
{"copyright_id":"0x92abd692553367cd8f220e58beddc1d73984d84c661fbcb2b10e0def1efa41d8","isrc":"QZW9K2400086","name":"Berimbau Entorta Xota","registered_at":"2026-06-21T02:58:53Z","spotify_id":"4phL6S7hiQzRxNhPsn2te7","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92abd692553367cd8f220e58beddc1d73984d84c661fbcb2b10e0def1efa41d8. 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/4phL6S7hiQzRxNhPsn2te7.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/4phL6S7hiQzRxNhPsn2te7.
{"copyright_id":"0x18fc939c4001da685ee1008e3373edad21d34c2f324ad7d7bf65aef6a8247852","isrc":"QZTPX2479158","name":"Berimbau Conexão Zs","registered_at":"2026-06-23T14:27:38Z","spotify_id":"2y7G1uTCk8OZcIgSqTRXYm","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18fc939c4001da685ee1008e3373edad21d34c2f324ad7d7bf65aef6a8247852. 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/2y7G1uTCk8OZcIgSqTRXYm.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/2y7G1uTCk8OZcIgSqTRXYm.
Mato da Fusion Fest - Homenagem ao Casarão
{"copyright_id":"0xccf5c39d930ac5b297a15929e8e4510536ec45a0ded36c64c698029581ed41d2","isrc":"QZTPX2454562","name":"Mato da Fusion Fest - Homenagem ao Casarão","registered_at":"2026-06-18T00:37:37Z","spotify_id":"4Y8ZtMKRGfqlUzcrmvXPyO","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccf5c39d930ac5b297a15929e8e4510536ec45a0ded36c64c698029581ed41d2. 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/4Y8ZtMKRGfqlUzcrmvXPyO.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/4Y8ZtMKRGfqlUzcrmvXPyO.
{"copyright_id":"0xdbdc68d32cec5259d168b2326e4c7813b49cccc2ab61447f40d6c3226e7541ed","isrc":"BKF442400235","name":"Quando Soco o Piru Todo","registered_at":"2026-06-08T17:30:26Z","spotify_id":"1pdTKTszIVAaYBwpY2eoda","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbdc68d32cec5259d168b2326e4c7813b49cccc2ab61447f40d6c3226e7541ed. 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/1pdTKTszIVAaYBwpY2eoda.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/1pdTKTszIVAaYBwpY2eoda.
Automotivo é só uma Botada vs Na Travessa la do Bega
{"copyright_id":"0x94953f2cff3893ec634f08e6f1885a04a28677837adebb3a3853a764effda4ec","isrc":"BC3PG2400516","name":"Bem Vindo ao Baile do Casarão","registered_at":"2026-06-09T08:36:52Z","spotify_id":"6pN85gksUNbOYPUu9rM9z8","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94953f2cff3893ec634f08e6f1885a04a28677837adebb3a3853a764effda4ec. 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/6pN85gksUNbOYPUu9rM9z8.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/6pN85gksUNbOYPUu9rM9z8.
Com o Dedo Cheirando a Xot4 - Automotivo
O Clima Tá Ensolarado X Sou um Cachorro de Raça Mesmo
{"copyright_id":"0xf8e1ae7039e0daca997e7ad038ff9177d76df77dab2a78b50c8327ecfab33306","isrc":"US7VG2469838","name":"Ponta do Oitão","registered_at":"2026-06-18T00:58:32Z","spotify_id":"5N0dDmEpMft81Mn4DvQvMv","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8e1ae7039e0daca997e7ad038ff9177d76df77dab2a78b50c8327ecfab33306. 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/5N0dDmEpMft81Mn4DvQvMv.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/5N0dDmEpMft81Mn4DvQvMv.