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 0xf82531716e523560254949283388591de9b9176b9dbd0285823e42031ee62679. 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/fab64368-460e-4bb0-9b20-39ebc2a96900.json and https://artists.proofprofile.net/proofs/artist/fab64368-460e-4bb0-9b20-39ebc2a96900.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 0xe7378ad459b06868425e41edd0059e57e410f35c7394785aae41749d70f95668. 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/53PpijFATt35Zxfl6LTxoK.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/53PpijFATt35Zxfl6LTxoK.
Yasmin Santos Ao Vivo em São Paulo - EP 2
{"copyright_id":"0xd3c099d33ce564b21d97391daa1dee3435f4b7190a861f37ea9e0566dfca900a","isrc":"BRSME1901647","name":"Para, Pensa e Volta - Ao Vivo","registered_at":"2026-06-04T03:14:07Z","spotify_id":"2KyXyTrp3kp1Fsg7B1osYD","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3c099d33ce564b21d97391daa1dee3435f4b7190a861f37ea9e0566dfca900a. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2KyXyTrp3kp1Fsg7B1osYD.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/2KyXyTrp3kp1Fsg7B1osYD.
Para, Pensa e Volta (feat. Marília Mendonça) - Ao Vivo
{"copyright_id":"0xd3c099d33ce564b21d97391daa1dee3435f4b7190a861f37ea9e0566dfca900a","isrc":"BRSME1901647","name":"Para, Pensa e Volta (feat. Marília Mendonça) - Ao Vivo","registered_at":"2026-06-04T03:14:07Z","spotify_id":"2rRA0VNb8RcaUMAmgWFoCL","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3c099d33ce564b21d97391daa1dee3435f4b7190a861f37ea9e0566dfca900a. 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/2rRA0VNb8RcaUMAmgWFoCL.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/2rRA0VNb8RcaUMAmgWFoCL.
{"copyright_id":"0x28a4cdbb152c251d53145d1e1be827c996e4b1e55bc9a79447af44241ebde95b","isrc":"BRUM71707006","name":"Evidências - Ao Vivo","registered_at":"2026-06-04T12:14:27Z","spotify_id":"1itPLdpgIEn1RoxrZKYLcO","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28a4cdbb152c251d53145d1e1be827c996e4b1e55bc9a79447af44241ebde95b. 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/1itPLdpgIEn1RoxrZKYLcO.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/1itPLdpgIEn1RoxrZKYLcO.
Agora É Que São Elas 2 - Mulheres do Sertanejo (Ao Vivo)
{"copyright_id":"0xda22e825a2bd512ae6f2ff5d6a8039d9a03ee4c13380abbeb464976ba1118496","isrc":"BRWNV1600230","name":"De Quem É a Culpa - Ao Vivo","registered_at":"2026-06-25T16:08:25Z","spotify_id":"7EwJsJn9HRr2w1WwVw6xCr","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda22e825a2bd512ae6f2ff5d6a8039d9a03ee4c13380abbeb464976ba1118496. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/7EwJsJn9HRr2w1WwVw6xCr.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/7EwJsJn9HRr2w1WwVw6xCr.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8b803afa0524127778b43878004351e310224eaa65dd12433dd5cb957ed16b4. 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/39YImr5fC9RchtOHAkwkeC.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/39YImr5fC9RchtOHAkwkeC.
{"copyright_id":"0x846396e2835d21924e2f74d7578ddb79f302b53ec5999fe592cbcf3868b89048","isrc":"BRUM71900076","name":"Vou Ter Que Superar - Ao Vivo","registered_at":"2026-06-01T05:28:27Z","spotify_id":"6sRLrSetyIwIKhW1eMlUNP","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x846396e2835d21924e2f74d7578ddb79f302b53ec5999fe592cbcf3868b89048. 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/6sRLrSetyIwIKhW1eMlUNP.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/6sRLrSetyIwIKhW1eMlUNP.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d90d908c55ecd1b460280e8182b48cf984946378c3523189e038908e37524f7. 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/0gpZ8zy9OAE98nNBVIxWvi.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/0gpZ8zy9OAE98nNBVIxWvi.
{"copyright_id":"0x2389d3f8a4b1081c5bdced1285318ee23ceeb9f652a6b54c697a2bca1b456d2f","isrc":"BRD1E1700015","name":"Não Me Testa (feat. Marília Mendonça)","registered_at":"2026-06-18T01:13:31Z","spotify_id":"1alED335AGsWsHJhr3UQOi","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2389d3f8a4b1081c5bdced1285318ee23ceeb9f652a6b54c697a2bca1b456d2f. 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/1alED335AGsWsHJhr3UQOi.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/1alED335AGsWsHJhr3UQOi.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86efb9f742c04ab3d1caf7004309b4051a0369fccb19827b7c12ea76475d052f. 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/5Nw3HvX6k8cB7NjEkqJkij.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/5Nw3HvX6k8cB7NjEkqJkij.
{"copyright_id":"0xe108cb121e8232bcf791995c10afe7dcc9cb1866957c12b2ee1bb8827272f89f","isrc":"BRWNV2100081","name":"A Mais Disputada","registered_at":"2026-06-08T03:14:36Z","spotify_id":"0otWcZ8iJmQSH4CxhaNCvd","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe108cb121e8232bcf791995c10afe7dcc9cb1866957c12b2ee1bb8827272f89f. 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/0otWcZ8iJmQSH4CxhaNCvd.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/0otWcZ8iJmQSH4CxhaNCvd.
{"copyright_id":"0xebeac3604eb34fa79bc5dcde1cafd93c9a7895a542dc6df98c4b8c2eb856788b","isrc":"BCK5V2100002","name":"Amigos con derechos","registered_at":"2026-06-06T10:41:33Z","spotify_id":"6dvgsCOYotWtttzkQneZ4O","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebeac3604eb34fa79bc5dcde1cafd93c9a7895a542dc6df98c4b8c2eb856788b. 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/6dvgsCOYotWtttzkQneZ4O.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/6dvgsCOYotWtttzkQneZ4O.
Eu Quero Ser Seu Anjo (Ao Vivo em Goiânia)
{"copyright_id":"0xbe56d7d136b8e194c8e0d34993d8da3adc41e9693be1039c6c3684f46bbeaceb","isrc":"BR1841600107","name":"Vou Levando a Minha - Ao Vivo","registered_at":"2026-06-04T16:30:59Z","spotify_id":"5kJ62zt0NaLuCoAzvQpQFh","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe56d7d136b8e194c8e0d34993d8da3adc41e9693be1039c6c3684f46bbeaceb. 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/5kJ62zt0NaLuCoAzvQpQFh.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/5kJ62zt0NaLuCoAzvQpQFh.
{"copyright_id":"0xbe56d7d136b8e194c8e0d34993d8da3adc41e9693be1039c6c3684f46bbeaceb","isrc":"BR1841600107","name":"Vou Levando a Minha - Ao Vivo","registered_at":"2026-06-04T16:30:59Z","spotify_id":"6Cks8oYjygAvah4TAoZhzT","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe56d7d136b8e194c8e0d34993d8da3adc41e9693be1039c6c3684f46bbeaceb. 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/6Cks8oYjygAvah4TAoZhzT.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/6Cks8oYjygAvah4TAoZhzT.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8fa968ec82603465f36f6a8c154cb22fb16c41f0d804441e19414ec2d2a13df. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1ZF3DcPzFg37gmRmA754u0.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/1ZF3DcPzFg37gmRmA754u0.
{"copyright_id":"0xd0529e2e11e0bd9afd2acbc18cfe4eacbeb42233772fad4e56d75e641e44dbf4","isrc":"BRYRN1700063","name":"Só Falta Você Aceitar - Ao Vivo","registered_at":"2026-06-04T11:47:38Z","spotify_id":"0YLZvNKxyQrVoBEOJE6mSH","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0529e2e11e0bd9afd2acbc18cfe4eacbeb42233772fad4e56d75e641e44dbf4. 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/0YLZvNKxyQrVoBEOJE6mSH.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/0YLZvNKxyQrVoBEOJE6mSH.
{"copyright_id":"0xd647b21104dee98fbd2d1e44663790fad044ceab019a38bf8323149b9ad30176","isrc":"US7VG1523163","name":"Até Que Eu Me Acostume","registered_at":"2026-06-18T16:12:36Z","spotify_id":"1ovvG0dNwiYIfqTBQvM3xN","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd647b21104dee98fbd2d1e44663790fad044ceab019a38bf8323149b9ad30176. 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/1ovvG0dNwiYIfqTBQvM3xN.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/1ovvG0dNwiYIfqTBQvM3xN.
{"copyright_id":"0x6439d8a2cbe12d79465d627fc9a300a8e47adfe17b3f40ca0a3e083e068a1fae","isrc":"BRZGF1500013","name":"Até Que Eu Me Acostume - Ao Vivo","registered_at":"2026-06-06T17:22:49Z","spotify_id":"3nOT5G61eRau79dKtuwUQp","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6439d8a2cbe12d79465d627fc9a300a8e47adfe17b3f40ca0a3e083e068a1fae. 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/3nOT5G61eRau79dKtuwUQp.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/3nOT5G61eRau79dKtuwUQp.