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 0x52a80730c80d11715aa51b262f62de78aaff48a234839dde3e439ac350791868. 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/c2ae9de9-257e-4168-917b-baeaacabc45c.json and https://artists.proofprofile.net/proofs/artist/c2ae9de9-257e-4168-917b-baeaacabc45c.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 0xd4d3fafd5d90ddea9f233668813202277bd73b6eb49d9b7710c3c17ce597f191. 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/0ssg490YRBaRB3M9q5HEd8.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/0ssg490YRBaRB3M9q5HEd8.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68265f4b15f50e5c1f69e590707973c248b5adaf87254e6a68ab29f9030620a2. 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/7HfsgADYwy8TGDbyeBu3UA.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/7HfsgADYwy8TGDbyeBu3UA.
{"copyright_id":"0x1a5a64e94fa1e5fd65e35716d55c7e2f48fc34950a4e0f0a2bf47d8edfb8c874","isrc":"BRMVP0300205","name":"Moda de Mula Preta","registered_at":"2026-06-07T04:19:34Z","spotify_id":"7vBZEqCB3tB8bl0ilsDfJw","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a5a64e94fa1e5fd65e35716d55c7e2f48fc34950a4e0f0a2bf47d8edfb8c874. 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/7vBZEqCB3tB8bl0ilsDfJw.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/7vBZEqCB3tB8bl0ilsDfJw.
{"copyright_id":"0x40ec12c8587fd3611d76e3943a3408bd02250507d0ad58e2a85fb3fd1d046fbf","isrc":"BRMVP0300194","name":"Brasil Cabloco","registered_at":"2026-06-06T20:21:49Z","spotify_id":"6RBRox3cCZWwvojqyGmXII","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40ec12c8587fd3611d76e3943a3408bd02250507d0ad58e2a85fb3fd1d046fbf. 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/6RBRox3cCZWwvojqyGmXII.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/6RBRox3cCZWwvojqyGmXII.
{"copyright_id":"0xd4d3fafd5d90ddea9f233668813202277bd73b6eb49d9b7710c3c17ce597f191","isrc":"BRMVP0300201","name":"Feijão Queimado","registered_at":"2026-06-09T22:04:28Z","spotify_id":"5i0b2Er4ZGQhFeW2sRnUUa","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4d3fafd5d90ddea9f233668813202277bd73b6eb49d9b7710c3c17ce597f191. 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/5i0b2Er4ZGQhFeW2sRnUUa.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/5i0b2Er4ZGQhFeW2sRnUUa.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68265f4b15f50e5c1f69e590707973c248b5adaf87254e6a68ab29f9030620a2. 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/5dwNXaZ9M0oLXF1Tx5rfXC.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/5dwNXaZ9M0oLXF1Tx5rfXC.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a3f65713206c71251393d25617d5ccebb5574c4049246cbcea02d726c203b29. 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/3iGWlEfz5O1rKfgBsru1pw.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/3iGWlEfz5O1rKfgBsru1pw.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36e880137d9afbda70320278561fcee4f281d4352b927a010016b7de528d089b. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/7IHEjrayKwpXeQeX6UHCzc.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/7IHEjrayKwpXeQeX6UHCzc.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99f72139cd57ba4fddf0978aa4c7b170fbf1c96a74b49e98f602be02c60f9c23. 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/2PpGwfSZaH1lmAqwFsts4P.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/2PpGwfSZaH1lmAqwFsts4P.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08772a0bd7cf92a50485809166f203fb4a338c368f512ff08f052eaf45bcca84. 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/747FsUrKmERl8At2jmUSyP.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/747FsUrKmERl8At2jmUSyP.
Tinoco Canta Os Sucessos De Tonico e Tinoco
{"copyright_id":"0x8bab97bab29b55cf5408a20ec1d6f8f41750167ef0696df804cdeba6f8d5c969","isrc":"BRMVP0300197","name":"Moreninha Linda","registered_at":"2026-06-04T04:07:18Z","spotify_id":"5mbdcejDXUfRL3VregJ5ut","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bab97bab29b55cf5408a20ec1d6f8f41750167ef0696df804cdeba6f8d5c969. 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/5mbdcejDXUfRL3VregJ5ut.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/5mbdcejDXUfRL3VregJ5ut.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0a40020785a3786a932ba98a325096ecb4932f185fbb07774772e326e1f37b7. 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/1ztotm6XTbJhW8GmwrhBlj.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/1ztotm6XTbJhW8GmwrhBlj.
{"copyright_id":"0x235af7bfc4e61a1b999d1de6f45257992eec2b7195ffd26fd6738498cdfdc5d5","isrc":"BRMVP0300198","name":"Cana Verde","registered_at":"2026-06-12T00:06:10Z","spotify_id":"0yZ0tn3RwdVg6AK1wwPzrR","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x235af7bfc4e61a1b999d1de6f45257992eec2b7195ffd26fd6738498cdfdc5d5. 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/0yZ0tn3RwdVg6AK1wwPzrR.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/0yZ0tn3RwdVg6AK1wwPzrR.
{"copyright_id":"0x9c3aa443f09ec4f8726326e4fae99364b5af239fece72ee1f9a0d6cc7b046013","isrc":"BRMVP0300190","name":"Beijinho Doce","registered_at":"2026-06-06T07:05:18Z","spotify_id":"08HKsBNVVMhMevceXObfuj","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c3aa443f09ec4f8726326e4fae99364b5af239fece72ee1f9a0d6cc7b046013. 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/08HKsBNVVMhMevceXObfuj.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/08HKsBNVVMhMevceXObfuj.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4565ab50c1fa7f081d77891e500df46cf9e82f67f2d9d096cb1d7880666b4988. 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/0kI4LLoFtHXcOGQINdaa1b.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/0kI4LLoFtHXcOGQINdaa1b.
{"copyright_id":"0x9a400a223100d01b59ceaaa8df301c0fe4a72d7ff05583691c385c1a16f77adf","isrc":"BRMVP0300191","name":"Chico Mineiro","registered_at":"2026-06-05T10:20:25Z","spotify_id":"0xwKWrlWSCxyZosc7BAVgN","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a400a223100d01b59ceaaa8df301c0fe4a72d7ff05583691c385c1a16f77adf. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/0xwKWrlWSCxyZosc7BAVgN.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/0xwKWrlWSCxyZosc7BAVgN.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e9aef374b03d34a1535a38f8e057c8671ca1a44311446c8a0c8474a6fa3c124. 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/0UQfoXT6p5DrqmR44Qvt2I.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/0UQfoXT6p5DrqmR44Qvt2I.
{"copyright_id":"0x2a00a875e18c9f43d212352b1cb9befa880790dddbf07bfade15d61c2635c645","isrc":"BRMVP0300200","name":"Chuá Chuá","registered_at":"2026-06-18T12:20:00Z","spotify_id":"6FqY0fAQEtjHzUzB5w9NtX","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a00a875e18c9f43d212352b1cb9befa880790dddbf07bfade15d61c2635c645. 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/6FqY0fAQEtjHzUzB5w9NtX.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/6FqY0fAQEtjHzUzB5w9NtX.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3832f60a96587876fe388d6783842b753e88247ee4dd9c75cc2eb5bbc8918821. 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/6Uyg5PmAPsKbSOEigOija9.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/6Uyg5PmAPsKbSOEigOija9.
{"copyright_id":"0xad5aff1ad14ee339d449a88e9c7d5170e4cdea5bed91fd8d5150f727205fb50a","isrc":"BRMVP0300189","name":"Tristeza Do Jeca","registered_at":"2026-06-04T12:06:34Z","spotify_id":"3T34sj5dfLkhlwMp27LOTp","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad5aff1ad14ee339d449a88e9c7d5170e4cdea5bed91fd8d5150f727205fb50a. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/3T34sj5dfLkhlwMp27LOTp.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/3T34sj5dfLkhlwMp27LOTp.
{"copyright_id":"0xfd2bee4cc445a61c2bcd447bda4cceb7222914c62c2506099fea3d0909a5ad53","isrc":"BRMVP0500749","name":"Bailão Gaúcho","registered_at":"2026-06-20T16:52:05Z","spotify_id":"4T34mU6vDepRzTSxlcBGK6","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd2bee4cc445a61c2bcd447bda4cceb7222914c62c2506099fea3d0909a5ad53. 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/4T34mU6vDepRzTSxlcBGK6.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/4T34mU6vDepRzTSxlcBGK6.
{"copyright_id":"0x8335d072474e9b09c5dee461c6ac835554083eeea9f05c000d983e1c28de6bec","isrc":"BRMVP0300195","name":"Luar do Sertão","registered_at":"2026-06-07T04:18:36Z","spotify_id":"44w2ywWW8zcTzlZwksbdVG","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8335d072474e9b09c5dee461c6ac835554083eeea9f05c000d983e1c28de6bec. 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/44w2ywWW8zcTzlZwksbdVG.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/44w2ywWW8zcTzlZwksbdVG.
{"copyright_id":"0x3900f2e4c4da211699b87b83c2fb8dc921733a6e9d50f36001aef336dee19ea9","isrc":"BRMVP0300203","name":"Festa na Roça","registered_at":"2026-06-18T23:22:27Z","spotify_id":"4iWyDzXYpFERIHbEnLIxnR","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3900f2e4c4da211699b87b83c2fb8dc921733a6e9d50f36001aef336dee19ea9. 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/4iWyDzXYpFERIHbEnLIxnR.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/4iWyDzXYpFERIHbEnLIxnR.
{"copyright_id":"0x3c2ebd6f6e9b34ccd2b4da6cecb58aaa370ed2698b5d88017057c6023098ffbf","isrc":"BRMVP0500750","name":"Vira pra Cá, Vira pra Lá","registered_at":"2026-06-27T21:17:20Z","spotify_id":"2VBnewflhJrl4lsIKVNGia","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c2ebd6f6e9b34ccd2b4da6cecb58aaa370ed2698b5d88017057c6023098ffbf. 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/2VBnewflhJrl4lsIKVNGia.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/2VBnewflhJrl4lsIKVNGia.