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 0x1f058d82e648f1ebfd3071004b855e847baf48ab33da0a2289569feaedbb7fd7. 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/fbae610a-0660-4407-b44c-62ebc2d475e8.json and https://artists.proofprofile.net/proofs/artist/fbae610a-0660-4407-b44c-62ebc2d475e8.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Goodbye (from the series Arcane League of Legends)
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 0x5088f03c94ed7bbf422c5ea253185c8f4eae0c12459428e0bc6cd1572228aee6. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2RfKKLpLxN9PdO2Ursj3Zj.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/2RfKKLpLxN9PdO2Ursj3Zj.
Where Did You Sleep Last Night? (From The “American Psycho” Comic Series Soundtrack)
Where Did You Sleep Last Night? - From The “American Psycho” Comic Series Soundtrack
{"copyright_id":"0xd1fb0cdfb6ea69019f447dcc6f22340a14145f362272876ad3ad9459f51e1c83","isrc":"USYFZ2399401","name":"Where Did You Sleep Last Night? - From The “American Psycho” Comic Series Soundtrack","registered_at":"2026-06-08T22:56:56Z","spotify_id":"4jOahGgS2DQOTl0YmnBsCn","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1fb0cdfb6ea69019f447dcc6f22340a14145f362272876ad3ad9459f51e1c83. 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/4jOahGgS2DQOTl0YmnBsCn.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/4jOahGgS2DQOTl0YmnBsCn.
{"copyright_id":"0xf5fc8486efdc06f3b10e81108645badf289618a802a7da82adbff6d39da1f4bc","isrc":"USHM82343285","name":"Turning Me Red","registered_at":"2026-06-08T22:53:24Z","spotify_id":"2HaX7HlHiIOCkCKhTAlwqJ","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5fc8486efdc06f3b10e81108645badf289618a802a7da82adbff6d39da1f4bc. 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/2HaX7HlHiIOCkCKhTAlwqJ.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/2HaX7HlHiIOCkCKhTAlwqJ.
{"copyright_id":"0xd99bfc0e49a6dae04242ee3267e073b10a8000d623add73a4b295f7324a5ac79","isrc":"USHM22321381","name":"I Put Something in Your Drink","registered_at":"2026-06-27T15:24:06Z","spotify_id":"4ShTeri3VW3OXrRAfIVXxu","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd99bfc0e49a6dae04242ee3267e073b10a8000d623add73a4b295f7324a5ac79. 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/4ShTeri3VW3OXrRAfIVXxu.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/4ShTeri3VW3OXrRAfIVXxu.
{"copyright_id":"0xf126ec83f5f5baebedff53302a7531b7f1f081861b3c4b2abaec91f6ee2a3d44","isrc":"QMDA62267820","name":"Dark Side - Poni Remix","registered_at":"2026-06-24T14:02:45Z","spotify_id":"0aTC4jWTAbV4t2IgBCMInl","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf126ec83f5f5baebedff53302a7531b7f1f081861b3c4b2abaec91f6ee2a3d44. 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/0aTC4jWTAbV4t2IgBCMInl.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/0aTC4jWTAbV4t2IgBCMInl.
Love Surrounds You (Instrumental Euphoria Mix)
Love Surrounds You - Instrumental Euphoria Mix
{"copyright_id":"0xd380e2c8a80eef7736d2f870c0fdba176371fb92788fe45e070ea39df4ce5d43","isrc":"GBKPL2153246","name":"Love Surrounds You - Instrumental Euphoria Mix","registered_at":"2026-06-21T09:43:25Z","spotify_id":"4wPQTrrgKQmk1v2FrB2MIz","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd380e2c8a80eef7736d2f870c0fdba176371fb92788fe45e070ea39df4ce5d43. 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/4wPQTrrgKQmk1v2FrB2MIz.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/4wPQTrrgKQmk1v2FrB2MIz.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f3e283d646ef588cdf23d123f091e979d4f4a23e5aeea02f4075b89029ab3c0. 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/3NwN42DI9k1YZGbeAFsHbO.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/3NwN42DI9k1YZGbeAFsHbO.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0dcee22b710a8653944a3b670276094399db9da94be8d274d486e1a11687d214. 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/4LxJenA2Y8WxxLVbtEOr5v.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/4LxJenA2Y8WxxLVbtEOr5v.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x751efe4954ed4f006f6ed8984ab763f02b010657f4f9bcca0cb2a941093de695. 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/4QzzbrZXW7JZlZEvSEO4BZ.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/4QzzbrZXW7JZlZEvSEO4BZ.
{"copyright_id":"0x4fab7a1d5114c01694b9cc7c0ff01c3e75fc3b239d55f89ec0a2ef7c0b9c991a","isrc":"GBKPL1673693","name":"Black and Blue","registered_at":"2026-06-08T05:43:50Z","spotify_id":"2kYyZ8ieDbFgSqgVSQ06kY","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fab7a1d5114c01694b9cc7c0ff01c3e75fc3b239d55f89ec0a2ef7c0b9c991a. 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/2kYyZ8ieDbFgSqgVSQ06kY.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/2kYyZ8ieDbFgSqgVSQ06kY.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7eb0ca98be6e9934447730ece6eef2c9f38ee52f927f156ab7df51069d10aca4. 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/0nGr1F15N4eb7ucK1o3h5B.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/0nGr1F15N4eb7ucK1o3h5B.
{"copyright_id":"0x2be6d945df79d52b4b62ba1fb84e8502c7267c8dae4fb96ad9c94567fd1cb81a","isrc":"GBKPL1675303","name":"Love Surrounds You","registered_at":"2026-06-05T09:49:28Z","spotify_id":"15fqAw9SlsMNDK9662ebkA","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2be6d945df79d52b4b62ba1fb84e8502c7267c8dae4fb96ad9c94567fd1cb81a. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T20:37:39Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/15fqAw9SlsMNDK9662ebkA.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/15fqAw9SlsMNDK9662ebkA.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7f07625864c7e0c4f02ecdc6027763639d6c0f42d303283ae2ea4a2de30d21f. 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/0znyr9fhm43YgkfKe2aLmB.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/0znyr9fhm43YgkfKe2aLmB.
{"copyright_id":"0x2be6d945df79d52b4b62ba1fb84e8502c7267c8dae4fb96ad9c94567fd1cb81a","isrc":"GBKPL1675303","name":"Love Surrounds You","registered_at":"2026-06-05T09:49:28Z","spotify_id":"1ernJOftWpjTavFDFULcoH","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2be6d945df79d52b4b62ba1fb84e8502c7267c8dae4fb96ad9c94567fd1cb81a. 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/1ernJOftWpjTavFDFULcoH.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/1ernJOftWpjTavFDFULcoH.
{"copyright_id":"0x7eb0ca98be6e9934447730ece6eef2c9f38ee52f927f156ab7df51069d10aca4","isrc":"QMEU31690645","name":"See You Bleed","registered_at":"2026-06-05T13:50:16Z","spotify_id":"53zt79vhCHNoE4OW3iMhrI","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7eb0ca98be6e9934447730ece6eef2c9f38ee52f927f156ab7df51069d10aca4. 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/53zt79vhCHNoE4OW3iMhrI.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/53zt79vhCHNoE4OW3iMhrI.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4336d4b534b1f8234b30dfd3a6e31aade40032a57af962b41995dcb43d20cf78. 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/7g6WkgUukoytezahbyo5qZ.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/7g6WkgUukoytezahbyo5qZ.
Fill The Void (with Lily Rose Depp, Ramsey)
The Idol Episode 4 (Music from the HBO Original Series)
{"copyright_id":"0x2d9cc472bc11a7705afc442971d0bc2368f3882fc5f45eb8a8c634e99d0a89e3","isrc":"USUG12303883","name":"Fill The Void (with Lily Rose Depp, Ramsey)","registered_at":"2026-06-01T05:07:41Z","spotify_id":"010ZkIVv6Ay5vqqHVCCiKB","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d9cc472bc11a7705afc442971d0bc2368f3882fc5f45eb8a8c634e99d0a89e3. 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/010ZkIVv6Ay5vqqHVCCiKB.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/010ZkIVv6Ay5vqqHVCCiKB.
Arcane League of Legends (Soundtrack from the Animated Series)
Goodbye (from the series Arcane League of Legends) - Akini Jing x ZOHAN Remix
{"copyright_id":"0x17a6903da9c2ca3a318b6cd8cf18a4e0b8bc94c5e001aa0c4cb468f72614bbf2","isrc":"QZH6S1900386","name":"Goodbye (from the series Arcane League of Legends)","registered_at":"2026-06-01T08:13:18Z","spotify_id":"3gXqz0S2KmgNIAVjqbZ1e2","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17a6903da9c2ca3a318b6cd8cf18a4e0b8bc94c5e001aa0c4cb468f72614bbf2. 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/3gXqz0S2KmgNIAVjqbZ1e2.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/3gXqz0S2KmgNIAVjqbZ1e2.