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 0x1b9b82aa0ee9f0b3c90ac719f225213be192a17841f0dca21ddaf65da1db3ebe. 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/14ec29a4-f8bd-403a-8d41-b0f5a436fbc9.json and https://artists.proofprofile.net/proofs/artist/14ec29a4-f8bd-403a-8d41-b0f5a436fbc9.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
{"copyright_id":"0x278cf13c50aa19c833155117a904f256aebd8a5edc7df51c79acf7d9cee65565","isrc":"QZNJW2424776","name":"Maldita Garota de Franja (Speed Up)","registered_at":"2026-06-26T04:33:56Z","spotify_id":"0eNXmV2pjBwBgIuxBtA0C3","type":"track"}
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 0x278cf13c50aa19c833155117a904f256aebd8a5edc7df51c79acf7d9cee65565. 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/0eNXmV2pjBwBgIuxBtA0C3.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/0eNXmV2pjBwBgIuxBtA0C3.
{"copyright_id":"0x5ef1ed4290caf7d448b30fafa16571c5d32f61deaea26d9af27bacf0a73b13d8","isrc":"QZNJW2408796","name":"Maldita Garota de Franja","registered_at":"2026-06-05T10:13:21Z","spotify_id":"0rG1Y4UfXPvoJFj3NQX8zM","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ef1ed4290caf7d448b30fafa16571c5d32f61deaea26d9af27bacf0a73b13d8. 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/0rG1Y4UfXPvoJFj3NQX8zM.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/0rG1Y4UfXPvoJFj3NQX8zM.
{"copyright_id":"0xa8b0fb552c8e22a0abb62c0aa9f9a938a155a422801d7819e44e2e244d5c5d52","isrc":"QZNJV2410660","name":"Corrida dos Ratos","registered_at":"2026-06-25T00:41:33Z","spotify_id":"68jqQjTQ4ITUrcbPXqEoQU","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8b0fb552c8e22a0abb62c0aa9f9a938a155a422801d7819e44e2e244d5c5d52. 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/68jqQjTQ4ITUrcbPXqEoQU.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/68jqQjTQ4ITUrcbPXqEoQU.
{"copyright_id":"0x3aa9a27d39a560ec9b3fe4c0a56d73e73c1f3fb0ef6ccb838175d5f5dd19fd12","isrc":"QZTPX2387465","name":"Filho de Ares","registered_at":"2026-06-09T11:57:29Z","spotify_id":"7vEjrFgASiWTIKtYjyGI71","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3aa9a27d39a560ec9b3fe4c0a56d73e73c1f3fb0ef6ccb838175d5f5dd19fd12. 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/7vEjrFgASiWTIKtYjyGI71.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/7vEjrFgASiWTIKtYjyGI71.
{"copyright_id":"0xe6a203bd50f4416196db9eae2020785afff59a3e7c3d7c1bec4aa45ef8837c19","isrc":"QZTPX2387466","name":"Dante da Nova Geração","registered_at":"2026-06-26T04:34:10Z","spotify_id":"6Vd9ltsFeiGSGVNjdQoVYr","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6a203bd50f4416196db9eae2020785afff59a3e7c3d7c1bec4aa45ef8837c19. 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/6Vd9ltsFeiGSGVNjdQoVYr.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/6Vd9ltsFeiGSGVNjdQoVYr.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa08e2b37577e6ea81b9e60b58f52b2203ac910294658a0195f411694538bc0f7. 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/5cqpoHd901vKzgMCnhYTvf.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/5cqpoHd901vKzgMCnhYTvf.
herança (ou ''a importância que nós damos pras coisas talvez não deve ser tão grande assim'')
espelho (ou 'em meio a busca das respostas, finalmente me lembro de tudo')
Finalmente Acordado (ou ''líricas, Kanye West, instagram reels e recapitulação'')
{"copyright_id":"0xaa9fade9f4c2f14319e8fbfccc7234fa55cb69a75fa07dd4a460af68be832e7c","isrc":"QT3EX2454531","name":"Até o dia clariar","registered_at":"2026-06-21T18:45:04Z","spotify_id":"5R8Y6YBv387uEXKsX6x3RZ","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa9fade9f4c2f14319e8fbfccc7234fa55cb69a75fa07dd4a460af68be832e7c. 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/5R8Y6YBv387uEXKsX6x3RZ.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/5R8Y6YBv387uEXKsX6x3RZ.
{"copyright_id":"0xbe28e9b8521d64e98d9df4f77284c5d203296345bc14a7f0800a343b3a20bf66","isrc":"QT3EX2454532","name":"Me desculpa pequeno","registered_at":"2026-06-18T21:06:21Z","spotify_id":"4HFEcXYLUcGo3GDptDpWNo","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe28e9b8521d64e98d9df4f77284c5d203296345bc14a7f0800a343b3a20bf66. 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/4HFEcXYLUcGo3GDptDpWNo.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/4HFEcXYLUcGo3GDptDpWNo.
{"copyright_id":"0x016cfc776d30f1ec0f1958bea2451dcaf62d06535d27b0f0c23dfc64bcaf0a4a","isrc":"QT3EX2454533","name":"Garoto Fantasma","registered_at":"2026-06-18T21:06:51Z","spotify_id":"1VNjXDqYRZjpmzmbTtp6uD","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x016cfc776d30f1ec0f1958bea2451dcaf62d06535d27b0f0c23dfc64bcaf0a4a. 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/1VNjXDqYRZjpmzmbTtp6uD.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/1VNjXDqYRZjpmzmbTtp6uD.
{"copyright_id":"0xb39e5944d1128216dcea61556c901b5cfc8a63abc44d46c0560ff1b7f2230636","isrc":"QT3EX2454534","name":"Hoje te sinto tão distante","registered_at":"2026-06-24T20:53:21Z","spotify_id":"04nh2RfAZ6R0N1DCRfZdbM","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb39e5944d1128216dcea61556c901b5cfc8a63abc44d46c0560ff1b7f2230636. 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/04nh2RfAZ6R0N1DCRfZdbM.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/04nh2RfAZ6R0N1DCRfZdbM.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95e8d4355b4529b6cde8e2cf456f85a42c3017aae2c0612c206a945c80b0a896. 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/6jvv7YvJDKFLPzXGWBzXr7.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/6jvv7YvJDKFLPzXGWBzXr7.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9e8a8405204955692ce57361e9326e4a0e4e49a2317e5576a011601e32660a5. 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/3OmOQjDTHdYBTYvLjnV9mk.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/3OmOQjDTHdYBTYvLjnV9mk.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12e1d2fe2a9628bf4a09f347e613c62d52dd3b090f45e9d7a1b0f44403f76ec7. 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/64WgyoAQqh8uK2NrEN62HS.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/64WgyoAQqh8uK2NrEN62HS.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5eadd1b6156776aa03d2ac269bb12ba97b3f461ae4505bc45bfd5a6150d60c6c. 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/6vCUnGsN5M1C8Y0ZGvhNdo.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/6vCUnGsN5M1C8Y0ZGvhNdo.
{"copyright_id":"0x3fe9e8c7a26ecafd4e4b292c69fd399126e163105998cd75717fdc4d818102b5","isrc":"QZTB52455612","name":"Tiro a máscara da cara","registered_at":"2026-06-10T22:55:43Z","spotify_id":"7HWk12tKwCrFFmHiInPLRN","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fe9e8c7a26ecafd4e4b292c69fd399126e163105998cd75717fdc4d818102b5. 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/7HWk12tKwCrFFmHiInPLRN.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/7HWk12tKwCrFFmHiInPLRN.
{"copyright_id":"0x9d52a8e170835f5fc3d9eb495d72e9117df3665ae8e57713ac74394d6ee4dfe8","isrc":"QZTB52455613","name":"Ela sabe, eu tentei","registered_at":"2026-06-21T12:30:43Z","spotify_id":"0Qv9kAYtRTuiVhVXX2xYTw","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d52a8e170835f5fc3d9eb495d72e9117df3665ae8e57713ac74394d6ee4dfe8. 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/0Qv9kAYtRTuiVhVXX2xYTw.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/0Qv9kAYtRTuiVhVXX2xYTw.
{"copyright_id":"0xac0e8fded115961b9c5d33ede1a0a9fc812de6aef2673fbb60ba1083993ee9ad","isrc":"QZTB52455614","name":"E se eu te dissesse tudo?","registered_at":"2026-06-04T14:13:08Z","spotify_id":"5Hc6WQ7DMIckA04spcjfFQ","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac0e8fded115961b9c5d33ede1a0a9fc812de6aef2673fbb60ba1083993ee9ad. 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/5Hc6WQ7DMIckA04spcjfFQ.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/5Hc6WQ7DMIckA04spcjfFQ.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68ef2f78f5d7793f413ef59c827391c0bc34e739b72a48ec720f09185974263a. 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/4TdfsIy20ibCcCwKVBz8Ss.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/4TdfsIy20ibCcCwKVBz8Ss.