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 0x0e6645a18a08f6f4b13766f48376fb5fc9933e0c101c10d5a17b98d801a1591f. 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/94758392-f698-45d4-8e7d-e6998c247654.json and https://artists.proofprofile.net/proofs/artist/94758392-f698-45d4-8e7d-e6998c247654.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 0x481b11fde1782aa6c995edd982bc31081881ea15107382c26399a2db90dc5666. 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/0USzHi8iIRZMAOMxzlnYje.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/0USzHi8iIRZMAOMxzlnYje.
{"copyright_id":"0x1fe0903e8419a13a3c05dc4119f2b6b24aa04b6f381dcd997dae4bbfa82853fe","isrc":"QZZEB2384929","name":"Mtg É Madeirada Até O Amanhecer","registered_at":"2026-06-05T08:41:29Z","spotify_id":"5GRyffSVolIgTIijQyAcfo","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fe0903e8419a13a3c05dc4119f2b6b24aa04b6f381dcd997dae4bbfa82853fe. 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/5GRyffSVolIgTIijQyAcfo.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/5GRyffSVolIgTIijQyAcfo.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0b79dc1d0f1ee26b08557b6f6b7f27150ef8095cbd3733877e4d577c535ff02. 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/5xda5uXR2v3s8xG6zCdO27.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/5xda5uXR2v3s8xG6zCdO27.
{"copyright_id":"0x11e23de022002c4989d99527075c2cc7e42e4aecaf707fac2f347a9282ccbf81","isrc":"QZWV32443573","name":"Mega Pro Baile da Igrejinha","registered_at":"2026-06-23T06:46:35Z","spotify_id":"5J0KQjGrn2rGN8pJDEhTEq","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11e23de022002c4989d99527075c2cc7e42e4aecaf707fac2f347a9282ccbf81. 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/5J0KQjGrn2rGN8pJDEhTEq.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/5J0KQjGrn2rGN8pJDEhTEq.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03557de172805807d03d07749fcb80656f8f43be8d3a0c3bf1e6c8e4a8734418. 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/65b1dGVH8D5r7nTbZiOC68.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/65b1dGVH8D5r7nTbZiOC68.
{"copyright_id":"0x38d6151b7da28d6f52d7df7c8b6aad9fc8f469fef72ee50472a139bfef2204f0","isrc":"USLZJ2596521","name":"Vou Catucar","registered_at":"2026-06-17T21:19:38Z","spotify_id":"5hSHWCqJNO5PO8SYZvi83p","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38d6151b7da28d6f52d7df7c8b6aad9fc8f469fef72ee50472a139bfef2204f0. 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/5hSHWCqJNO5PO8SYZvi83p.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/5hSHWCqJNO5PO8SYZvi83p.
{"copyright_id":"0x84a25e18c32a27c2e2409e304c05a4be2f427d6c653e550a90f8bb38927cdb1e","isrc":"QZWV32420637","name":"Senta na Moral Vs Para no Chão","registered_at":"2026-06-09T17:42:11Z","spotify_id":"6GT6JIHxJf0DYbTxsIhBhb","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84a25e18c32a27c2e2409e304c05a4be2f427d6c653e550a90f8bb38927cdb1e. 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/6GT6JIHxJf0DYbTxsIhBhb.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/6GT6JIHxJf0DYbTxsIhBhb.
{"copyright_id":"0x39d2de54b55caf1fa9d305e1097ef8946f47d93ecfedeb3a8b65dda07dda9340","isrc":"QZ5FN2471984","name":"Mtg Quando O DJ Mandar","registered_at":"2026-06-17T04:13:02Z","spotify_id":"4kPqSjutDiHC2TYJJshqtH","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39d2de54b55caf1fa9d305e1097ef8946f47d93ecfedeb3a8b65dda07dda9340. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T20:30:34Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/4kPqSjutDiHC2TYJJshqtH.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/4kPqSjutDiHC2TYJJshqtH.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x362c5b55d8ff9443945f85e3be9b33ea96d618197aec6580d8f8104b555af826. 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/02810DqlJ8gpmovCBfR8KZ.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/02810DqlJ8gpmovCBfR8KZ.
{"copyright_id":"0x02ecd82aca20780700a761ad994224912a4b6a39146d832e5d9e1f3fc97c71f1","isrc":"QZZEB2468751","name":"Gestão Inteligente","registered_at":"2026-06-10T04:03:00Z","spotify_id":"6eAJmOHzKyA8TcG5IwFq2K","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02ecd82aca20780700a761ad994224912a4b6a39146d832e5d9e1f3fc97c71f1. 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/6eAJmOHzKyA8TcG5IwFq2K.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/6eAJmOHzKyA8TcG5IwFq2K.
{"copyright_id":"0x1b98a8d88a47d36c839815bf86dda9dcb89737de8f5f5f5bcc63a94120c857bb","isrc":"QZZ8B2468393","name":"Paraiso da Igrejinha","registered_at":"2026-06-19T09:41:43Z","spotify_id":"4vu0pOrvmQaj28WKxZWcvX","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b98a8d88a47d36c839815bf86dda9dcb89737de8f5f5f5bcc63a94120c857bb. 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/4vu0pOrvmQaj28WKxZWcvX.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/4vu0pOrvmQaj28WKxZWcvX.
{"copyright_id":"0xbdf141aae60e9201aa6609f0165c4b951f04e63540ffbd220a0e30e08aac230a","isrc":"QZWDE2442285","name":"Mega Pros Baile de Bh 001","registered_at":"2026-06-19T11:27:56Z","spotify_id":"3rpBhhtsALP0eCXa67hllT","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdf141aae60e9201aa6609f0165c4b951f04e63540ffbd220a0e30e08aac230a. 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/3rpBhhtsALP0eCXa67hllT.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/3rpBhhtsALP0eCXa67hllT.
{"copyright_id":"0xf4a0210f59076d44c6cf7d2427defcc9f4c67adcce35e37774a4fb2a82f46dff","isrc":"QZWDD2456939","name":"Assombração de BH 001","registered_at":"2026-06-04T10:46:02Z","spotify_id":"62F6o3X0fanEssFaxGGlRg","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4a0210f59076d44c6cf7d2427defcc9f4c67adcce35e37774a4fb2a82f46dff. 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/62F6o3X0fanEssFaxGGlRg.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/62F6o3X0fanEssFaxGGlRg.
{"copyright_id":"0x29200426782a337d9e36b9867dd9b47bf733a291ac342035ca6689f34fcf4a4b","isrc":"QZWDD2447421","name":"Mega do Dia Dos Namorados","registered_at":"2026-06-24T13:32:56Z","spotify_id":"6gWiSmfSNiONFXtZN1Dws2","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29200426782a337d9e36b9867dd9b47bf733a291ac342035ca6689f34fcf4a4b. 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/6gWiSmfSNiONFXtZN1Dws2.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/6gWiSmfSNiONFXtZN1Dws2.
{"copyright_id":"0x89faab4ed8815c59c77acbdba598beb8d4d8ad9f8cb73d236fbe6ed0208a3141","isrc":"QZWDD2420901","name":"Viva o Job","registered_at":"2026-06-27T03:06:26Z","spotify_id":"1FCjAhKbwffPHU5CyojLFH","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89faab4ed8815c59c77acbdba598beb8d4d8ad9f8cb73d236fbe6ed0208a3141. 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/1FCjAhKbwffPHU5CyojLFH.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/1FCjAhKbwffPHU5CyojLFH.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe861ef70d5b47f6d8321d29656255b799145e846aa93b0114734877efa0a28f5. 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/6QsZB4EIYwkssyVGunZz1L.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/6QsZB4EIYwkssyVGunZz1L.
{"copyright_id":"0x84eec56a70175fa479106d9a3faa63d081b91947714d9a388fc9d8c0cc8b2269","isrc":"USLZJ2475861","name":"Mtg Treinamento do BumBum","registered_at":"2026-06-08T03:14:20Z","spotify_id":"6l71msBElBrdVm0ztlGMgo","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84eec56a70175fa479106d9a3faa63d081b91947714d9a388fc9d8c0cc8b2269. 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/6l71msBElBrdVm0ztlGMgo.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/6l71msBElBrdVm0ztlGMgo.
{"copyright_id":"0x9b0794b1c4c4417489c81ff5804c8032b701601c8de1b078fbdcc4398ecd3a1c","isrc":"QZZEB2303481","name":"Pânico na Igrejinha","registered_at":"2026-06-22T01:12:16Z","spotify_id":"3Bfv2NtS43PjDSguGLS1xU","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b0794b1c4c4417489c81ff5804c8032b701601c8de1b078fbdcc4398ecd3a1c. 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/3Bfv2NtS43PjDSguGLS1xU.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/3Bfv2NtS43PjDSguGLS1xU.
{"copyright_id":"0x5ecb79351fba33cffd455f5e9e622559f140742ce2038ac6423fc9bb896af013","isrc":"QZZ8B2348746","name":"Mtg Ela Só Quer Curtir","registered_at":"2026-06-10T04:09:02Z","spotify_id":"5YMHSb7Z6FgniQu3p7IiX8","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ecb79351fba33cffd455f5e9e622559f140742ce2038ac6423fc9bb896af013. 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/5YMHSb7Z6FgniQu3p7IiX8.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/5YMHSb7Z6FgniQu3p7IiX8.
{"copyright_id":"0xe7153781d4673781a342e2518f363e7dfbfbae26f58b9651e0ab991b5ee1e87f","isrc":"QZZ8A2338176","name":"Vai no Cavalinho","registered_at":"2026-06-07T13:39:52Z","spotify_id":"4bmuVieGgkSSse1rQcrZQT","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7153781d4673781a342e2518f363e7dfbfbae26f58b9651e0ab991b5ee1e87f. 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/4bmuVieGgkSSse1rQcrZQT.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/4bmuVieGgkSSse1rQcrZQT.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f6cbd7d74a7aef4b20285b82803dc02751019dc17952bab57752a65779ab77b. 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/4WcS01bX1bg7PYbEaCExJz.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/4WcS01bX1bg7PYbEaCExJz.
{"copyright_id":"0xe96e4693dfabe2eb61219a3eaa86f61a56182958e70e4cd10d058242586dbfcd","isrc":"QZNWW2253018","name":"Sem Perder a Postura","registered_at":"2026-06-05T12:35:08Z","spotify_id":"7zKQfE0PngvD16VTYQxeh2","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe96e4693dfabe2eb61219a3eaa86f61a56182958e70e4cd10d058242586dbfcd. 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/7zKQfE0PngvD16VTYQxeh2.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/7zKQfE0PngvD16VTYQxeh2.
{"copyright_id":"0x824bc903723d43caa0d28ff0683dc2796d9a9d6b0008bda815c2656c8a3c15c8","isrc":"QZMEP2381460","name":"Mtg Pra ouvir no almoço de família","registered_at":"2026-06-05T21:38:05Z","spotify_id":"3n7717Zx9BUfJs6OTDHNZZ","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x824bc903723d43caa0d28ff0683dc2796d9a9d6b0008bda815c2656c8a3c15c8. 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/3n7717Zx9BUfJs6OTDHNZZ.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/3n7717Zx9BUfJs6OTDHNZZ.