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 0x15964ba41ffe5df89c6f7c437698f4c375adee2456a8b6adda80b90f8effb670. 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/ae87cc40-292c-4e42-be33-d68ac39002fa.json and https://artists.proofprofile.net/proofs/artist/ae87cc40-292c-4e42-be33-d68ac39002fa.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
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 0x002f251dcd77653dd3dcd40102fab838718fe78b33724c550b7a90256a9f7ad2. 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/54o7PVw2hSzs0oUYnJWfnu.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/54o7PVw2hSzs0oUYnJWfnu.
Dia dos Namorados / Rock and Roll Lullaby / Luar de Verão - Ao Vivo
A Dança Da Tartaruga/Pra Lá De Bragada - Ao Vivo
{"copyright_id":"0x1c461dc77551b64e6d57f90dabd8667061591cbca1190574c6ad597fdf07173d","isrc":"BRSME9800806","name":"Baila Que Eu Vou - Ao Vivo","registered_at":"2026-06-29T14:36:25Z","spotify_id":"1YvQ5iHJTWhMiYnrqgsr66","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c461dc77551b64e6d57f90dabd8667061591cbca1190574c6ad597fdf07173d. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1YvQ5iHJTWhMiYnrqgsr66.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/1YvQ5iHJTWhMiYnrqgsr66.
Dia Dos Namorados/Rock And Roll Lullaby - Live Version
{"copyright_id":"0x6b79a3a3ca55ce3dc6b19d35a3235fcd650540cfca232f482f9b50131952c809","isrc":"BRSME9800802","name":"Dia dos Namorados / Rock and Roll Lullaby / Luar de Verão - Ao Vivo","registered_at":"2026-06-28T19:13:05Z","spotify_id":"4iO9VZNAMRFgpqPk7VZXgN","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b79a3a3ca55ce3dc6b19d35a3235fcd650540cfca232f482f9b50131952c809. 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/4iO9VZNAMRFgpqPk7VZXgN.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/4iO9VZNAMRFgpqPk7VZXgN.
{"copyright_id":"0x1c461dc77551b64e6d57f90dabd8667061591cbca1190574c6ad597fdf07173d","isrc":"BRSME9800806","name":"Baila Que Eu Vou - Ao Vivo","registered_at":"2026-06-29T14:36:25Z","spotify_id":"6EBPbW8NbDgpxRjXObZ6JV","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c461dc77551b64e6d57f90dabd8667061591cbca1190574c6ad597fdf07173d. 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/6EBPbW8NbDgpxRjXObZ6JV.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/6EBPbW8NbDgpxRjXObZ6JV.
{"copyright_id":"0xcb339fe9153b5ece028820a461da842b57801e2e80fed662f59e500d8ed91c0d","isrc":"BRSME9800808","name":"Amor Tropical/Eu Quero É Mais - Ao Vivo","registered_at":"2026-06-29T14:34:07Z","spotify_id":"5NEhFocSf2Urpu2b9WKAB5","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb339fe9153b5ece028820a461da842b57801e2e80fed662f59e500d8ed91c0d. 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/5NEhFocSf2Urpu2b9WKAB5.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/5NEhFocSf2Urpu2b9WKAB5.
Caia na Folia - Mús. incid.: Pirata da Perna de Pau
Casamento Não - Mús. Incid.: Marcha Nupicial
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d133951a6914451faa317da8ae5917f142c2c67c23fb82f920bc15ed52b965a. 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/0N47Xb785l1NubcXFvQxmi.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/0N47Xb785l1NubcXFvQxmi.
Baila Que Eu Vou / Fly And Fly / Escócia
{"copyright_id":"0x8aad01b81fa76127b211e1358d6c72ac60d5a092eddcde0fd297c41fcabd02e5","isrc":"BRDOM1200064","name":"Baila Que Eu Vou / Fly And Fly / Escócia","registered_at":"2026-06-29T04:50:04Z","spotify_id":"3il8GvXAgNLjRY3MxZyvsW","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8aad01b81fa76127b211e1358d6c72ac60d5a092eddcde0fd297c41fcabd02e5. 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/3il8GvXAgNLjRY3MxZyvsW.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/3il8GvXAgNLjRY3MxZyvsW.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b9d5e1c30769e02f28357d9a5b0a703410a46a5aaf9272695ac47011f0b48a3. 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/6BmNLekLH6cpIRaO7TYVQ9.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/6BmNLekLH6cpIRaO7TYVQ9.