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 0x273a4c6cf8cab0b53e2cb1be66aebbc8c4a4606dd5f29179bd8db602242ea954. 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/0cb5cac8-82f0-4504-b429-7b431f7d4687.json and https://artists.proofprofile.net/proofs/artist/0cb5cac8-82f0-4504-b429-7b431f7d4687.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Samba-Enredo Para Uma Porta-Bandeira / Musica Incidental: Peguei Um Ita No Norte
Pout Pourri Latino Americano: Esta Tarde Vi Llover / El Dia Que Me Quieras / Cuando Tu Me Quieras / Perfidia / Una Aventura Más / Celito Lindo
{"copyright_id":"0xedca5e5ccb380fef67e816e58a3d0a1d9422f41e118da1357b0ebab7923b2ad4","isrc":"BRUM71802937","name":"Los Amantes","registered_at":"2026-06-29T08:25:26Z","spotify_id":"5XlollYQ5gWRGfySdqIlLQ","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 0xedca5e5ccb380fef67e816e58a3d0a1d9422f41e118da1357b0ebab7923b2ad4. 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/5XlollYQ5gWRGfySdqIlLQ.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/5XlollYQ5gWRGfySdqIlLQ.
Flamengo Maravilhoso / Música Instrumental: Cidade Maravilhosa
Quem Não Tem Esperança Não Tem Horizonte
Depois Das Palavras Só A Música (Canção Para Ninar Gente Triste) / Música Incidental: Nossa Canção / El Dia Que Me Quieras
{"copyright_id":"0xd1d16f062d243f4c38f8ed3ed54f7088fe9ce9867570ccc9256f961b14f844f0","isrc":"BXYOC1900003","name":"Um Samba Merece Respeito","registered_at":"2026-06-24T10:22:46Z","spotify_id":"5dvX3TaLdg1hn2n5MDDWZQ","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1d16f062d243f4c38f8ed3ed54f7088fe9ce9867570ccc9256f961b14f844f0. 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/5dvX3TaLdg1hn2n5MDDWZQ.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/5dvX3TaLdg1hn2n5MDDWZQ.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15e62753af727defe127eca5d7c506eb23ac39c1411aa6dcf36a4ef6746108ef. 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/458O35B7PZ3xTzxfR4J03y.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/458O35B7PZ3xTzxfR4J03y.
{"copyright_id":"0x52cac2f03137f7ad2e3e6dcea129e948a53ccae6c75dbbd2dcaaf87a69edda17","isrc":"FR96X1916679","name":"Porta Aberta","registered_at":"2026-06-24T17:17:43Z","spotify_id":"06kkgDVQRGiZ6URKwzTeqt","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52cac2f03137f7ad2e3e6dcea129e948a53ccae6c75dbbd2dcaaf87a69edda17. 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/06kkgDVQRGiZ6URKwzTeqt.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/06kkgDVQRGiZ6URKwzTeqt.