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 0xeeeadc1132cc87834f5a6d9a32e82b6d8af03679ec40a3bed911c282ecf82e91. 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/c0e4d38a-09d2-4174-b16e-beda6d3238e1.json and https://artists.proofprofile.net/proofs/artist/c0e4d38a-09d2-4174-b16e-beda6d3238e1.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
{"copyright_id":"0xc812627a422d4ec595a70a9db2975d3bdf220549ef6ad0e776045df9e7ff11aa","isrc":"USZ4V2100035","name":"Delete - Good Times Ahead Remix","registered_at":"2026-06-11T02:54:32Z","spotify_id":"4m6waNT8wP4gYJC160I5WZ","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 0xc812627a422d4ec595a70a9db2975d3bdf220549ef6ad0e776045df9e7ff11aa. 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/4m6waNT8wP4gYJC160I5WZ.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/4m6waNT8wP4gYJC160I5WZ.
{"copyright_id":"0xb109c4fa9266de8a4a6eea495e6568a317065ee5f5dcebba8833deffec4a0625","isrc":"DES232400020","name":"Nobody Knows","registered_at":"2026-06-01T16:32:17Z","spotify_id":"3vF2wvLHg3QK1MwqeiUOUb","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb109c4fa9266de8a4a6eea495e6568a317065ee5f5dcebba8833deffec4a0625. 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/3vF2wvLHg3QK1MwqeiUOUb.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/3vF2wvLHg3QK1MwqeiUOUb.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x460e1b8cc92df609ff3d10dfb142190d3202feb315f1bb6c1c8b531887726741. 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/2VnBZ3IwJdF6G4XljSD6ud.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/2VnBZ3IwJdF6G4XljSD6ud.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04eb1c53fe8dcbf2abc81300d9c29467cf8fad50819c75558df8e5a76e778700. 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/4vv8wcnT04GHHbUCFBAiHF.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/4vv8wcnT04GHHbUCFBAiHF.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a5f1723e82141b5d8b2394c0369427a0013381f4e625c18e64e2e13eeaef58d. 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/3geWQR47Bj2serH1Qa4EHy.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/3geWQR47Bj2serH1Qa4EHy.
{"copyright_id":"0x2ce415179cb7065f360ea202c25f44d994735289d7372093879918fdbc2cbc51","isrc":"QZWDW2303533","name":"KILO - Major Lazer & Ape Drums Remix","registered_at":"2026-06-08T20:28:55Z","spotify_id":"30yNdeqvvrMEbHjH4yA2Xk","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ce415179cb7065f360ea202c25f44d994735289d7372093879918fdbc2cbc51. 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/30yNdeqvvrMEbHjH4yA2Xk.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/30yNdeqvvrMEbHjH4yA2Xk.
Oh Yeah (feat. Ty Dolla Sign) - Ape Drums Remix
{"copyright_id":"0x35d434fdb0f8f9ea815e261dbb797c5cd9fdb424cca649e88534831e2436cdaf","isrc":"USZ4V2300227","name":"Oh Yeah (feat. Ty Dolla Sign) - Ape Drums Remix","registered_at":"2026-06-20T19:21:01Z","spotify_id":"6xFMrtE0JaelXK00rKUagq","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35d434fdb0f8f9ea815e261dbb797c5cd9fdb424cca649e88534831e2436cdaf. 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/6xFMrtE0JaelXK00rKUagq.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/6xFMrtE0JaelXK00rKUagq.
{"copyright_id":"0x3ee0590733b1cb12829727bdf9e7f0c77bf92bfec6eee7d0de5e98c304f758bd","isrc":"USRC12301835","name":"Arranca (feat. Omega) - Ape Drums Remix","registered_at":"2026-06-17T04:22:20Z","spotify_id":"64yfC02Lj8ZGmFOP8myLfJ","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ee0590733b1cb12829727bdf9e7f0c77bf92bfec6eee7d0de5e98c304f758bd. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T20:32:33Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/64yfC02Lj8ZGmFOP8myLfJ.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/64yfC02Lj8ZGmFOP8myLfJ.
Nice to Meet Ya (feat. Nicki Minaj) - Ape Drums Remix
Nice to Meet Ya (feat. Nicki Minaj) [The Remixes]
{"copyright_id":"0xa55d60f99215f3cb4c014d2cbd10b69efe4188fe22a0fc11547716613651786c","isrc":"USSM12003502","name":"Nice to Meet Ya (feat. Nicki Minaj) - Ape Drums Remix","registered_at":"2026-06-22T04:58:02Z","spotify_id":"39lTjYi08CMEzCmsX4dgky","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa55d60f99215f3cb4c014d2cbd10b69efe4188fe22a0fc11547716613651786c. 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/39lTjYi08CMEzCmsX4dgky.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/39lTjYi08CMEzCmsX4dgky.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04eb1c53fe8dcbf2abc81300d9c29467cf8fad50819c75558df8e5a76e778700. 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/1G7vCwBCxeTe8fB0EGMDdq.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/1G7vCwBCxeTe8fB0EGMDdq.
{"copyright_id":"0xbda059c0def8c14cd9bb925682d627f7f0b0424bfe145826adbd63feac4846d6","isrc":"USRC12002193","name":"Mood Ring (By Demand) - Ape Drums Remix","registered_at":"2026-06-08T08:29:38Z","spotify_id":"1CxvhiXRnEoEFtN0YwRggY","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbda059c0def8c14cd9bb925682d627f7f0b0424bfe145826adbd63feac4846d6. 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/1CxvhiXRnEoEFtN0YwRggY.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/1CxvhiXRnEoEFtN0YwRggY.
{"copyright_id":"0xbda059c0def8c14cd9bb925682d627f7f0b0424bfe145826adbd63feac4846d6","isrc":"USRC12002193","name":"Mood Ring (By Demand) - Ape Drums Remix","registered_at":"2026-06-08T08:29:38Z","spotify_id":"6X0xle3V7cm2zdtcJHXV39","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbda059c0def8c14cd9bb925682d627f7f0b0424bfe145826adbd63feac4846d6. 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/6X0xle3V7cm2zdtcJHXV39.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/6X0xle3V7cm2zdtcJHXV39.
Can't Have (feat. Steven A. Clark & Ape Drums)
{"copyright_id":"0xc91247b3655eceb62b2db56bcec35a6ca6583c208a096e7afbed3ff034100d56","isrc":"USRC11601312","name":"Can't Have (feat. Steven A. Clark & Ape Drums)","registered_at":"2026-06-05T20:52:10Z","spotify_id":"6ADhQWuCv54VfU3NM8Uyse","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc91247b3655eceb62b2db56bcec35a6ca6583c208a096e7afbed3ff034100d56. 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/6ADhQWuCv54VfU3NM8Uyse.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/6ADhQWuCv54VfU3NM8Uyse.
Nightmare (feat. Pusha T & Barrington Levy) - Ape Drums Remix
{"copyright_id":"0xebc91407d324c79b95a575ee2e3cf2b26b0af3d78586104eb429e4e938344184","isrc":"USZ4V1600131","name":"Nightmare (feat. Pusha T & Barrington Levy) - Ape Drums Remix","registered_at":"2026-06-22T23:29:57Z","spotify_id":"1D02EqfeTfWfueFgjKPX9h","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebc91407d324c79b95a575ee2e3cf2b26b0af3d78586104eb429e4e938344184. 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/1D02EqfeTfWfueFgjKPX9h.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/1D02EqfeTfWfueFgjKPX9h.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ce415179cb7065f360ea202c25f44d994735289d7372093879918fdbc2cbc51. 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/2uA9VBo1OP9GeNqf9kJCv8.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/2uA9VBo1OP9GeNqf9kJCv8.
Office Christmas Party - Original Motion Picture Soundtrack
{"copyright_id":"0xba1627eb55adf2986cce328298a319e4e8a972effd703aea894a02c4935f2c1a","isrc":"QZZVQ2400557","name":"Body Talk - Ape Drums Remix","registered_at":"2026-06-05T06:45:02Z","spotify_id":"5xFBrbXPBE0NBy5evMKa52","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba1627eb55adf2986cce328298a319e4e8a972effd703aea894a02c4935f2c1a. 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/5xFBrbXPBE0NBy5evMKa52.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/5xFBrbXPBE0NBy5evMKa52.