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 0xbf5d5c049efbf0814ca44e761781df4851a39e866809b11c89fd02015bbb237d. 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/15ec50d4-8892-4f7f-a2ab-1f8416468b84.json and https://artists.proofprofile.net/proofs/artist/15ec50d4-8892-4f7f-a2ab-1f8416468b84.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 0x82bb2faa497c28400c7eb000386f3dbc8fc0a1b56923e88222ed23689c2f25f1. 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/56MLik3tQNcxfjLMCwFA11.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/56MLik3tQNcxfjLMCwFA11.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88fea6b853719234bf3437e9c82d6cf2b74a197d1612fd6ac3a9dd7c36b7dd31. 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/7t3D2ua2lPW0nWEHsPH6Ak.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/7t3D2ua2lPW0nWEHsPH6Ak.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf463a44f95bb3fab6a14681f9d48d7f591e64279eef4b8cf5084a2d279e98f30. 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/5vqRBdjMnl6zIEOJeEAIoL.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/5vqRBdjMnl6zIEOJeEAIoL.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7cf4b481f38173046263e53145c30c32b39e1738bf3500a266e6d2b47e6bf946. 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/5RYWVKw8RbSryZzxaJC2OD.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/5RYWVKw8RbSryZzxaJC2OD.
{"copyright_id":"0xe362de2343938ac9d0906cda0cb2a2262c4c6b50f555ae76db88b125ee3814cf","isrc":"BXKG22201235","name":"Pura Elegância","registered_at":"2026-06-24T09:07:24Z","spotify_id":"4sYl08b81zJPecMeHXNiff","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe362de2343938ac9d0906cda0cb2a2262c4c6b50f555ae76db88b125ee3814cf. 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/4sYl08b81zJPecMeHXNiff.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/4sYl08b81zJPecMeHXNiff.
{"copyright_id":"0x32b765b7bd2a5bbf43979bbff777b152f7e6f2efd76891286e3224a8a41c5c74","isrc":"QZW9L2397787","name":"Máquina Alemã","registered_at":"2026-06-08T09:51:05Z","spotify_id":"6Zjx3pXVwCCXSs6aFEWBVR","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32b765b7bd2a5bbf43979bbff777b152f7e6f2efd76891286e3224a8a41c5c74. 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/6Zjx3pXVwCCXSs6aFEWBVR.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/6Zjx3pXVwCCXSs6aFEWBVR.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x916044dfdf5df47061bf435712360fbdf846b8100685848692d0b8922fc08f2c. 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/3rlHmQ0Esl4d1utdUrBM8z.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/3rlHmQ0Esl4d1utdUrBM8z.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x397ce38570a34f58bb0b11d463f2d35587441fa10cd9c2f644cbc5280a21ca5c. 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/5WnUUUaoWXL1Bp31L1aRMI.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/5WnUUUaoWXL1Bp31L1aRMI.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d721428d5d83f041ac00ba005ed4567a5670759fdc366aa32b6c8d51315042d. 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/1TU1tnDNJabdID5H5k9kdN.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/1TU1tnDNJabdID5H5k9kdN.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd41b63968252840c1d1f251810aede6691ea62dbf71feda518cc3fc0533e1a7f. 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/353J7IoA3qA4G3a5z798DN.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/353J7IoA3qA4G3a5z798DN.
No Pique do Malokadão Piquizim dos Cria 1.0
{"copyright_id":"0x3d4446868be5e339220ba0011a7955ea9c5284feeff2045ebb4a463e723eb0e5","isrc":"BXKG22401195","name":"Automotivo Melódico 4","registered_at":"2026-06-07T18:58:21Z","spotify_id":"07cIIylKsaK6JmSpJabyub","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d4446868be5e339220ba0011a7955ea9c5284feeff2045ebb4a463e723eb0e5. 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/07cIIylKsaK6JmSpJabyub.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/07cIIylKsaK6JmSpJabyub.
{"copyright_id":"0x686c0bd196851dd05487d31f7f326f680d3fd7a84eccd48fac550ce62ac619b0","isrc":"BXKG22401696","name":"Dentro do Jato","registered_at":"2026-06-06T22:46:00Z","spotify_id":"1pp2UchDKSlXP56qgAAbES","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x686c0bd196851dd05487d31f7f326f680d3fd7a84eccd48fac550ce62ac619b0. 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/1pp2UchDKSlXP56qgAAbES.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/1pp2UchDKSlXP56qgAAbES.
Vou Bater na Sua Bunda Pique Lutador de Boxe
Mega Bruxaria do Mago, Dj Leo da Pancada
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa50ac84a4c65c12ae66aee08c2317303a2893a9661a6b162e53304dacec09efe. 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/6wMzgqcoIAKMrXGJMbKYMv.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/6wMzgqcoIAKMrXGJMbKYMv.
{"copyright_id":"0x68719fd1b6ebcd97827bd0c8c6a59a2ca5438a00fddc015b4cf17ee70eec6fc9","isrc":"BXKG22302486","name":"Ritmista 1.0","registered_at":"2026-06-01T08:56:23Z","spotify_id":"3ZNjlT5zR0jkEVzSSZCQeJ","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68719fd1b6ebcd97827bd0c8c6a59a2ca5438a00fddc015b4cf17ee70eec6fc9. 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/3ZNjlT5zR0jkEVzSSZCQeJ.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/3ZNjlT5zR0jkEVzSSZCQeJ.
{"copyright_id":"0xb2a886ad6bff11a3f07e658e8344ebe83c891ba23ac76de9241f60010259a707","isrc":"BXKG22301291","name":"Lacoste África 2","registered_at":"2026-06-04T15:04:49Z","spotify_id":"3ZLygAwKumgQDDS8XDaFMz","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2a886ad6bff11a3f07e658e8344ebe83c891ba23ac76de9241f60010259a707. 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/3ZLygAwKumgQDDS8XDaFMz.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/3ZLygAwKumgQDDS8XDaFMz.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4756e697053682ecc61149d31c6893327bb1fbb0a8aa99e52b9b3a7885ce48ec. 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/0VZvQPEQVzBpcSSnGObNXD.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/0VZvQPEQVzBpcSSnGObNXD.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x837dca47821946a6abc3f4c384f2472c5ec76fadb9ccae84e2dc164f998d08fe. 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/4FYafjcXipMZacHYKF4XbY.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/4FYafjcXipMZacHYKF4XbY.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52e56cd6b0e9c875866fe9c6acfde9827a4ccc512e9c74a79594db00b0f40627. 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/7mWFOyYS2XkqDbgNb4NchE.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/7mWFOyYS2XkqDbgNb4NchE.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccfa8a03e7405b5ae5778869b783ff4a7fce7d422cb2249a5f79e7043d8d92b6. 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/5uwL51Hv73pPesYfoDlyDB.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/5uwL51Hv73pPesYfoDlyDB.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6618edf0bab2148a2601de045674331081217dababb7433ede0a6218714a420. 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/1GuoZOgu1V3TFH6hpjeRUc.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/1GuoZOgu1V3TFH6hpjeRUc.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d5c881652bdd5aab7509d72c728c92164f5b7cc811660f2b5d83e28f787232c. 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/6k5HIlqAdBZp7C1ahN84AJ.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/6k5HIlqAdBZp7C1ahN84AJ.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72701a9f0e773a5b52f735d84d799966e11316a5a0f2cab26309ebac6735d60a. 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/0u8jG359cqlK7rXMlWigbm.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/0u8jG359cqlK7rXMlWigbm.
{"copyright_id":"0xf5d584d98b118afe64aae63070212a5eca00c2b9c7855bffad3508a29e8c28bc","isrc":"BCLXC2300001","name":"Brota Bebê - Remix","registered_at":"2026-06-18T00:53:46Z","spotify_id":"6duZUc0iBXuajh6LCw9Occ","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5d584d98b118afe64aae63070212a5eca00c2b9c7855bffad3508a29e8c28bc. 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/6duZUc0iBXuajh6LCw9Occ.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/6duZUc0iBXuajh6LCw9Occ.
{"copyright_id":"0xfc620ca4da721c4d6286682dcb6b35a8340c38b9c4155c11003fb1fa75759543","isrc":"QZNJW2444835","name":"Modo Artilheiro","registered_at":"2026-06-24T08:59:31Z","spotify_id":"5RWIZHpImusIIntObupOcQ","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc620ca4da721c4d6286682dcb6b35a8340c38b9c4155c11003fb1fa75759543. 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/5RWIZHpImusIIntObupOcQ.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/5RWIZHpImusIIntObupOcQ.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f6a2874a186971c311bc427221b7a41b1a564d4e170f2d4aabd3afe98642556. 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/3qsvvx0Y5uMTqXSa7jnjAg.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/3qsvvx0Y5uMTqXSa7jnjAg.