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 0x2f69e58c0e925f1289610cb0155e258ad4ce342739e48cc31eaa30b8d4c24550. 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/fc5741a0-0478-40cc-834f-b33d9cc08c56.json and https://artists.proofprofile.net/proofs/artist/fc5741a0-0478-40cc-834f-b33d9cc08c56.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 0xf0798e5fc8a9ad8a80e04eff930413e9b7851db626c88ec90694817c2b537d3c. 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/7vCtJ5u7dFM4tAWtgFf4l8.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/7vCtJ5u7dFM4tAWtgFf4l8.
{"copyright_id":"0x7159164acb8217f537a55eac6305c8e62fe360933bb130f5efef966c6b9b0c27","isrc":"BC9T42200032","name":"Duas Certezas - Ao Vivo","registered_at":"2026-06-04T11:19:43Z","spotify_id":"0Vl4UaNP4xJiOKOrLSynMz","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7159164acb8217f537a55eac6305c8e62fe360933bb130f5efef966c6b9b0c27. 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/0Vl4UaNP4xJiOKOrLSynMz.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/0Vl4UaNP4xJiOKOrLSynMz.
{"copyright_id":"0x7159164acb8217f537a55eac6305c8e62fe360933bb130f5efef966c6b9b0c27","isrc":"BC9T42200032","name":"Duas Certezas - Ao Vivo","registered_at":"2026-06-04T11:19:43Z","spotify_id":"4fqbDK5AbT7OCqRWEdyyVn","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7159164acb8217f537a55eac6305c8e62fe360933bb130f5efef966c6b9b0c27. 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/4fqbDK5AbT7OCqRWEdyyVn.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/4fqbDK5AbT7OCqRWEdyyVn.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x597143b7493b43a6995d753d2c46f140a54888f57069c879e4d78e210754b619. 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/6hZcWCx8BbqmgOR0kyCuNJ.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/6hZcWCx8BbqmgOR0kyCuNJ.
{"copyright_id":"0xe1ed09c632bf25c30ba3bb7af8497c1c2be4ceecffc2143c20e986e62314f2e8","isrc":"BXBAL2500007","name":"Dizer Não - Ao Vivo","registered_at":"2026-06-01T21:04:53Z","spotify_id":"5XJ4ztc8lfbTis8ERguBrs","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1ed09c632bf25c30ba3bb7af8497c1c2be4ceecffc2143c20e986e62314f2e8. 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/5XJ4ztc8lfbTis8ERguBrs.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/5XJ4ztc8lfbTis8ERguBrs.
{"copyright_id":"0x9d2ad1f39101a8a7ecd1955f2ffc19dedcac7ea67fac79d486561c6f38ea01d7","isrc":"BCARN2200011","name":"Fulano - Ao Vivo","registered_at":"2026-06-04T08:32:43Z","spotify_id":"2slHCHYP7ogpGSsCumJT1a","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d2ad1f39101a8a7ecd1955f2ffc19dedcac7ea67fac79d486561c6f38ea01d7. 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/2slHCHYP7ogpGSsCumJT1a.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/2slHCHYP7ogpGSsCumJT1a.
{"copyright_id":"0xee609c2fb0140f88b95c27b88f74dff63adf89450d0f061d66030befcc2f61b3","isrc":"BCARN2300001","name":"Quem tá Pegando","registered_at":"2026-06-04T06:51:13Z","spotify_id":"6L2ule7uWSdh1qjcMO3vUD","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee609c2fb0140f88b95c27b88f74dff63adf89450d0f061d66030befcc2f61b3. 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/6L2ule7uWSdh1qjcMO3vUD.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/6L2ule7uWSdh1qjcMO3vUD.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3653c27097b277a7559be15e779f3af65c805a357aea6790f71cadff74cc2e45. 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/1wjN9da74BZYTbFl8WBysp.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/1wjN9da74BZYTbFl8WBysp.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f94d256c37f32840f1ace55f75ced22696778627a606916a42e56483fcaf70d. 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/3dSuA4LCa2QeSf3WGRPwYH.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/3dSuA4LCa2QeSf3WGRPwYH.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f94d256c37f32840f1ace55f75ced22696778627a606916a42e56483fcaf70d. 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/4yotowaTj5dQzQi1CwBNCM.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/4yotowaTj5dQzQi1CwBNCM.
{"copyright_id":"0xa065073b16d97d92bc863ab5b32ddb86a47cecc3eecfa45d037c493c929980e5","isrc":"BCJGE2200032","name":"Carreta de Álcool - Ao Vivo","registered_at":"2026-06-11T10:32:37Z","spotify_id":"5ErqSBiJU4nQQuGHG1oJaE","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa065073b16d97d92bc863ab5b32ddb86a47cecc3eecfa45d037c493c929980e5. 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/5ErqSBiJU4nQQuGHG1oJaE.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/5ErqSBiJU4nQQuGHG1oJaE.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9963709151fb677ebb2b68135955d0c3234acb4cec52a8643302b139b9245eb. 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/150BzFUlcw5NKX7Qnq5xYD.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/150BzFUlcw5NKX7Qnq5xYD.
Se Não Tivesse Ido / Fruto Especial - Ao Vivo
{"copyright_id":"0x1fc756419c285e546b32263db8a2cb88cde71b780e06766d3906792732eb8b9d","isrc":"BRUM72200359","name":"Se Não Tivesse Ido / Fruto Especial - Ao Vivo","registered_at":"2026-06-08T10:54:47Z","spotify_id":"727iUu8xpafbLKxvbnl7mG","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fc756419c285e546b32263db8a2cb88cde71b780e06766d3906792732eb8b9d. 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/727iUu8xpafbLKxvbnl7mG.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/727iUu8xpafbLKxvbnl7mG.
Gado Demais / Citação: Jogado Na Rua - Ao Vivo
Gado Demais / Citação: Jogado Na Rua (Ao Vivo)
{"copyright_id":"0xa4d46610e0ee3b1d9a1afedfba33fa08b41dab9e5a0b87d9cd0387bf80857473","isrc":"BRUM72200351","name":"Gado Demais / Citação: Jogado Na Rua - Ao Vivo","registered_at":"2026-06-21T02:51:51Z","spotify_id":"2Vbh14Za8srORosrJl3d3l","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4d46610e0ee3b1d9a1afedfba33fa08b41dab9e5a0b87d9cd0387bf80857473. 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/2Vbh14Za8srORosrJl3d3l.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/2Vbh14Za8srORosrJl3d3l.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x597143b7493b43a6995d753d2c46f140a54888f57069c879e4d78e210754b619. 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/4OOoK6nkSn6OSVWBdrEKB0.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/4OOoK6nkSn6OSVWBdrEKB0.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x495ec44bf5b1b7afb031c64057d3a260982050f7940269989c335f8ca189b1b6. 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/6hNREzgHbVM5AkGwP4SPmU.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/6hNREzgHbVM5AkGwP4SPmU.
Com Amor Kevi Jonny (Ao Vivo, Em Goiânia)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x341f94a5d45bda2a3b7cd9c8e2186bb1924c540bcf82f1d5aaafcd7010421c56. 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/3A1FeKp8uccV6inE74P6S5.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/3A1FeKp8uccV6inE74P6S5.