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 0x4ad7992928c331e3ec8ae087fc31f714e2233948fc4dbd7b58c16b0c0b91d13e. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/fc771311-9398-4051-bd18-6779dcea5c3a.json and https://artists.proofprofile.net/proofs/artist/fc771311-9398-4051-bd18-6779dcea5c3a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Dong Dong/ No Toque da Guitarra (Solo de Guitarra) - Ao Vivo
Dança Serrana/ Vem Serranear/ Serranamania
Uma Neguinha Me Esperando/ É Sábado O Dia/ Bica Que Bica
{"copyright_id":"0x62c39ed345a248e61aef7020bda4f24235c2dba54dc09d4f52d3b8cc60acfad0","isrc":"BRIMT0400286","name":"O Índio E O Bugio","registered_at":"2026-06-29T14:26:07Z","spotify_id":"47UvBZwPwXQUPhGj9a0zVU","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 0x62c39ed345a248e61aef7020bda4f24235c2dba54dc09d4f52d3b8cc60acfad0. 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/47UvBZwPwXQUPhGj9a0zVU.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/47UvBZwPwXQUPhGj9a0zVU.
Camperiada De Gaiteiro/ Bate Coxa No Totonho
{"copyright_id":"0x3e7fad12ef7739a12bab56c5e22759bdbda0a9f6f58fb33ed8a1b3894797637a","isrc":"BRIMT0400296","name":"Saudade De Minha Terra","registered_at":"2026-06-29T14:18:12Z","spotify_id":"2IYEKnlMx2IcS5G5hzvZ5g","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e7fad12ef7739a12bab56c5e22759bdbda0a9f6f58fb33ed8a1b3894797637a. 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/2IYEKnlMx2IcS5G5hzvZ5g.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/2IYEKnlMx2IcS5G5hzvZ5g.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5822619dd824a00dc1c4683609353bb44750ac1b882bcbd68c44a0447942027a. 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/297W2eX6r3nYvnrWsn60wO.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/297W2eX6r3nYvnrWsn60wO.
{"copyright_id":"0x84cf26757220995fdb20bf6ba56ec696c78c66c714f8effad4e45c1090f5d274","isrc":"BRIMT0400301","name":"Balangando As Tetas","registered_at":"2026-06-29T14:23:41Z","spotify_id":"4tw6vZW3Yb3k4ZT0tDpaSD","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84cf26757220995fdb20bf6ba56ec696c78c66c714f8effad4e45c1090f5d274. 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/4tw6vZW3Yb3k4ZT0tDpaSD.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/4tw6vZW3Yb3k4ZT0tDpaSD.
Pot Pourri: Roda Morena / Nossa Vaneira - Ao Vivo
Pot Pourri: Amargurado / Telefone Mudo - Ao Vivo
Pot Pourri: Puerto Tirol / El Kangui - Ao Vivo
Pot Pourri: Um Bagual Corcoveador / Bailanta Da Neca Maria - Ao Vivo
Pot Pourri: Pagode Em Brasilia / O Campeão / Pagode - Ao Vivo
Pot-Pourri: Roda Morena / Nossa Vaneira - Ao Vivo
Pot-Pourri: Amargurado / Telefone Mudo - Ao Vivo
Pot-Pourri: Puerto Tirol / El Kangui - Ao Vivo
Pot-Pourri: Um Bagual Corcoveador / Bailanta da Neca Maria - Ao Vivo
Pot-Pourri: Pagode Em Brasilia / O Campeão / Pagode - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47a53d4dce922f5b564e14752bc27b033ed5300353e41352917cd76f3a0f2520. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1VRswqFJBGW29763oBUyuV.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/1VRswqFJBGW29763oBUyuV.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47a53d4dce922f5b564e14752bc27b033ed5300353e41352917cd76f3a0f2520. 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/7bMaHDZjOdsG63PEsZ6Tcq.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/7bMaHDZjOdsG63PEsZ6Tcq.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47a53d4dce922f5b564e14752bc27b033ed5300353e41352917cd76f3a0f2520. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1e6B2RsyNJTmJSPHBT42ZK.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/1e6B2RsyNJTmJSPHBT42ZK.
Campeãs Sertanejas: As Melhores Ao Vivo, Vol.2
Pot Pourri: Pagode em Brasília/ O Campeão /Pagode - Ao Vivo
{"copyright_id":"0x21121a0cd915c206c39aa2b0a812efcaaeb7ca21ec7d1338488b4cd6e7574913","isrc":"BRAPI0600834","name":"Saudade de Minha Terra - Ao Vivo","registered_at":"2026-06-09T08:27:09Z","spotify_id":"14TIM89sWxsA7TpkYhnWWe","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21121a0cd915c206c39aa2b0a812efcaaeb7ca21ec7d1338488b4cd6e7574913. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/14TIM89sWxsA7TpkYhnWWe.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/14TIM89sWxsA7TpkYhnWWe.
Rumo a Balada Sertaneja - Pra Incendiar O Bailão
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47a53d4dce922f5b564e14752bc27b033ed5300353e41352917cd76f3a0f2520. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/7nWo5APi6gQpnD8iPGi1OX.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/7nWo5APi6gQpnD8iPGi1OX.
{"copyright_id":"0x21121a0cd915c206c39aa2b0a812efcaaeb7ca21ec7d1338488b4cd6e7574913","isrc":"BRAPI0600834","name":"Saudades de Minha Terra - Ao Vivo","registered_at":"2026-06-09T08:27:09Z","spotify_id":"6LHNHbJK8kLjyUBdD4NSn6","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21121a0cd915c206c39aa2b0a812efcaaeb7ca21ec7d1338488b4cd6e7574913. 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/6LHNHbJK8kLjyUBdD4NSn6.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/6LHNHbJK8kLjyUBdD4NSn6.