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 0x5773a0709aa6b03a51aa57f1bb07d6cabae0236397ef98a9082609b67e03e5e5. 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/00b6a07a-4ffa-436a-9bd4-539009529b40.json and https://artists.proofprofile.net/proofs/artist/00b6a07a-4ffa-436a-9bd4-539009529b40.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
O Pão, O Vinho E A Estrela (Le Pain, Le Vin E L'etoile)
Na Selva De Pedra (A Taste Of Excitement)
Para Ter O Mundo A Meus Pés (It Takes The Best)
Amigo Altemar: O Trovador / Somos Iguais / Sentimental Demais / Brigas / E A Vida Continua / Ninguém Chora Por Mim
História De Um Amor (Historia De Un Amor)
Jesus No Horto Das Oliveiras (I Only Want To Say - Gethesemane)
Tormento D'Amore - Dueto com Charlotte Church
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 0xd81aa1ac8c992e77126559de63872714c8dace637f786b3978d847c7513f53ee. Chain 2 (Bitcoin): anchored in block 956383 (2026-07-02T18:11:59Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/3qWdIU1A30Xq5Q4tKSSGYA.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/3qWdIU1A30Xq5Q4tKSSGYA.
Pot-Pourri: Coimbra / Só Nós Dois / Nem Às Paredes Confesso
Pot-Pourri: Historia de un Amor / La Barca / Sinceridad
Pot-Pourri: História De Un Amor / La Barca / Sinceridad
Eu Sei Que Vou Te Amar / Soneto da Fidelidade
Agnaldo Rayol e Amigos Ao Vivo em Alto Mar
As Grandes Décadas Da Música Popular Brasileira
Minha gioconda - Participação especial de Agnaldo Rayol
{"copyright_id":"0xdc0704fc53a1128277e7bf8c278b3c919963e9abb35dbf99dac9e1d2c4e98300","isrc":"BRWMB9600454","name":"Minha gioconda - Participação especial de Agnaldo Rayol","registered_at":"2026-06-08T04:56:48Z","spotify_id":"6izDeRvhXuUA5BfDje0dl9","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc0704fc53a1128277e7bf8c278b3c919963e9abb35dbf99dac9e1d2c4e98300. 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/6izDeRvhXuUA5BfDje0dl9.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/6izDeRvhXuUA5BfDje0dl9.
{"copyright_id":"0xdc0704fc53a1128277e7bf8c278b3c919963e9abb35dbf99dac9e1d2c4e98300","isrc":"BRWMB9600454","name":"Minha gioconda - Participação especial de Agnaldo Rayol","registered_at":"2026-06-08T04:56:48Z","spotify_id":"6ojp6njXtWAffgAK7peYJa","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc0704fc53a1128277e7bf8c278b3c919963e9abb35dbf99dac9e1d2c4e98300. 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/6ojp6njXtWAffgAK7peYJa.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/6ojp6njXtWAffgAK7peYJa.
{"copyright_id":"0xdc0704fc53a1128277e7bf8c278b3c919963e9abb35dbf99dac9e1d2c4e98300","isrc":"BRWMB9600454","name":"Minha gioconda - Participação especial de Agnaldo Rayol","registered_at":"2026-06-08T04:56:48Z","spotify_id":"0Vcyg7WASjLGQyK1l52CCj","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc0704fc53a1128277e7bf8c278b3c919963e9abb35dbf99dac9e1d2c4e98300. 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/0Vcyg7WASjLGQyK1l52CCj.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/0Vcyg7WASjLGQyK1l52CCj.
Ave Maria (Ao Vivo) (feat. Agnaldo Rayol & João Carlos Martins)
Paz Sim, Violência Não (Volume 2) [Ao Vivo]
{"copyright_id":"0xa3b414b539194c93a66a4ff24b43b72df12b21cd7aafa492cca4ce382033bfaa","isrc":"BRECI1100132","name":"Serenata do Adeus - Ao Vivo","registered_at":"2026-06-21T06:36:47Z","spotify_id":"5hx6i73625gmj0vH6hP1f3","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3b414b539194c93a66a4ff24b43b72df12b21cd7aafa492cca4ce382033bfaa. 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/5hx6i73625gmj0vH6hP1f3.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/5hx6i73625gmj0vH6hP1f3.
{"copyright_id":"0x998fec3b7ab72329dab161866681b1ecc6e55cadcdbfbc9eceb2a624bd8f97e5","isrc":"BRSKS0800456","name":"La Barca","registered_at":"2026-06-09T16:14:34Z","spotify_id":"7cyHbgM4zyspmdmhTdb97s","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x998fec3b7ab72329dab161866681b1ecc6e55cadcdbfbc9eceb2a624bd8f97e5. 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/7cyHbgM4zyspmdmhTdb97s.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/7cyHbgM4zyspmdmhTdb97s.