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 0x31a56c08c8211c7bfd97037afef192691799fbcb61bb3f7eae1ebee1200028ff. 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/3d4f2849-b60c-481d-b499-cbc3c6803ab6.json and https://artists.proofprofile.net/proofs/artist/3d4f2849-b60c-481d-b499-cbc3c6803ab6.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
{"copyright_id":"0x0a81b94d6f21ae225cf1745a35f661e0b9abc5fb2851acbc27c39ead7b098378","isrc":"QZDQH2392986","name":"La Nota Del Comandante (En Vivo)","registered_at":"2026-06-07T06:49:17Z","spotify_id":"6f2I3Ey604Tuu7wvh2c4aB","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 0x0a81b94d6f21ae225cf1745a35f661e0b9abc5fb2851acbc27c39ead7b098378. 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/6f2I3Ey604Tuu7wvh2c4aB.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/6f2I3Ey604Tuu7wvh2c4aB.
{"copyright_id":"0xcb50990e66853a5ad577b75fadad112b2e1a9958814bc2e5b7b8de346c5e91a4","isrc":"QZDQH2392987","name":"Y Como La Ven (En Vivo)","registered_at":"2026-06-05T16:17:48Z","spotify_id":"3bsCnt00t5AwKe6aMlNJRZ","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb50990e66853a5ad577b75fadad112b2e1a9958814bc2e5b7b8de346c5e91a4. 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/3bsCnt00t5AwKe6aMlNJRZ.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/3bsCnt00t5AwKe6aMlNJRZ.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7af7006e0ef49d3c666b2d45b3a9b3cc9c8f8e1814c48b845166632c635544a. 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/4q8x8G0Nem3xbXu4U50dJg.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/4q8x8G0Nem3xbXu4U50dJg.
{"copyright_id":"0x57140e0203c55eda372c55fda7fa733b53a588f4c8fad1d7e02d715ce32da86c","isrc":"QZDQH2392989","name":"La Posada (En Vivo)","registered_at":"2026-06-05T11:13:58Z","spotify_id":"4XOyBA0dFBBC8UHrX3Ow2g","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57140e0203c55eda372c55fda7fa733b53a588f4c8fad1d7e02d715ce32da86c. 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/4XOyBA0dFBBC8UHrX3Ow2g.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/4XOyBA0dFBBC8UHrX3Ow2g.
{"copyright_id":"0xe40e11d80ff7066c3f15aae808323460daed3e2aade83aa0db2a7eac76362d97","isrc":"QZDQH2392990","name":"La Plebada Del Chuta (En Vivo)","registered_at":"2026-06-05T11:17:26Z","spotify_id":"5Av6dktObE9yJdKwxU5MAT","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe40e11d80ff7066c3f15aae808323460daed3e2aade83aa0db2a7eac76362d97. 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/5Av6dktObE9yJdKwxU5MAT.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/5Av6dktObE9yJdKwxU5MAT.
{"copyright_id":"0x6849fee01cb46153013f9befbcfeb5ec850adc88cad148d7d1d361f464249962","isrc":"QZDQH2392991","name":"Le Temen Al Vago (En Vivo)","registered_at":"2026-06-04T16:46:28Z","spotify_id":"79YtX1s9jiBhnXuUj4TaUf","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6849fee01cb46153013f9befbcfeb5ec850adc88cad148d7d1d361f464249962. 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/79YtX1s9jiBhnXuUj4TaUf.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/79YtX1s9jiBhnXuUj4TaUf.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31c01566fd75a68fe4244ea040215e899bc2c8f552923be8ff532ab5af1a3531. 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/2qtvTiP5aVa9NK3FVIPiEm.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/2qtvTiP5aVa9NK3FVIPiEm.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x484df1a2c3e616cf8790f0677a663b59dcc5a29fa59e04e3ed379f542dd9b643. 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/3uzD7ayQwtq7NArl14VHDl.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/3uzD7ayQwtq7NArl14VHDl.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97f021015261dfad323a289f02171a2ff26ab738411c15441a3e405600bc7b42. 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/5xKAC7Hgz6YuAxW89Dwsjt.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/5xKAC7Hgz6YuAxW89Dwsjt.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8dcdc456958880178872532b88da38c21a8535a6296d305b36b8237285a8c15a. 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/1fMUs43fuILfsxw5LbDPUS.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/1fMUs43fuILfsxw5LbDPUS.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86a3be17eca61f626fb5467e6242f42c5b710d9bef75d09ab845fd8b10d67286. 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/6ot3Vhnclfzf11OGxEdzcC.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/6ot3Vhnclfzf11OGxEdzcC.
{"copyright_id":"0x8cae51ff5481f5d2eab0101404da64ab0be2cb00b12d5ad1fca752fb2ccba693","isrc":"USANG2437545","name":"Operativo Fech","registered_at":"2026-06-27T17:46:08Z","spotify_id":"2k0QmZfVVkyvYH5eLrfFDp","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cae51ff5481f5d2eab0101404da64ab0be2cb00b12d5ad1fca752fb2ccba693. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2k0QmZfVVkyvYH5eLrfFDp.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/2k0QmZfVVkyvYH5eLrfFDp.
{"copyright_id":"0xda43eef559b1a21b3ccdea1e374e9f72b0e61c73df31cc9590a622474deba43c","isrc":"USANG2404968","name":"EL H2","registered_at":"2026-06-27T17:47:09Z","spotify_id":"6mVh6QqfZbKmoPQ4epWDvO","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda43eef559b1a21b3ccdea1e374e9f72b0e61c73df31cc9590a622474deba43c. 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/6mVh6QqfZbKmoPQ4epWDvO.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/6mVh6QqfZbKmoPQ4epWDvO.
{"copyright_id":"0xc52c1a8bce8dc12e361d17059eb3f0bd36b3674d559593866ac6bc8e150aa3e7","isrc":"USANG2428976","name":"El Suave (En Vivo)","registered_at":"2026-06-26T01:21:04Z","spotify_id":"2LtE6flQa01IUPMTrCgUYh","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc52c1a8bce8dc12e361d17059eb3f0bd36b3674d559593866ac6bc8e150aa3e7. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2LtE6flQa01IUPMTrCgUYh.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/2LtE6flQa01IUPMTrCgUYh.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x693d1f963ae8f971ec65ca122a97a05db90a9009d7087d482e8a91d6e12eb949. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2Y2Q9gMb94Is8dYlUEcIiR.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/2Y2Q9gMb94Is8dYlUEcIiR.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7777aee460427a7bc6bd77de90a4c290c3755494298f2bac8ff3b91501a05128. 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/3rlSerUR4ZkMUBgsfNeHLu.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/3rlSerUR4ZkMUBgsfNeHLu.
{"copyright_id":"0xd097d690cf9918eccafc2c611a5bc4480f64da8bc6c654806c5053aed4b46aa7","isrc":"US3DF2413242","name":"El Motorcito","registered_at":"2026-06-18T06:34:27Z","spotify_id":"6iHPNZVzB6JiMBbSG8ZeYU","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd097d690cf9918eccafc2c611a5bc4480f64da8bc6c654806c5053aed4b46aa7. 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/6iHPNZVzB6JiMBbSG8ZeYU.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/6iHPNZVzB6JiMBbSG8ZeYU.
{"copyright_id":"0x36c56db0045589a339864cd6415ba1cb3b5996feb4c425dbff5af0265c6a46e4","isrc":"QZDQH2358719","name":"El Compa Capu","registered_at":"2026-06-18T22:08:42Z","spotify_id":"4DNmSGARRLcECLHgWT7MJq","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36c56db0045589a339864cd6415ba1cb3b5996feb4c425dbff5af0265c6a46e4. 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/4DNmSGARRLcECLHgWT7MJq.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/4DNmSGARRLcECLHgWT7MJq.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0251b0b69cd9c8d852745e41c16f0f218205045251c23db57d3cff68a348bf68. 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/67dXBQ2zCHc6T3fT5rXuH9.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/67dXBQ2zCHc6T3fT5rXuH9.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b1cb7638536b73e831b3419b7ffc59b833bd4448ef5804c34ff0078fec377fe. 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/48Krz7rY5R430yMjJSGZ3D.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/48Krz7rY5R430yMjJSGZ3D.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb442e9c879226575918824e9aae1d36198d0eb0980c020a2891137748de3ea7e. 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/3Zx3wR705x7WJv8cYTcRN0.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/3Zx3wR705x7WJv8cYTcRN0.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95bbff7e4b0447ab25be3e403fd73a153dd4d88958cb68f0beff6d1a134f2b7e. 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/3X5SpVftXi0yfA421w1W1w.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/3X5SpVftXi0yfA421w1W1w.