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 0xab8e46461e5c1118dcd6a3744c35fd1964dd154338c19591590833c1661ca029. 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/ad88b308-34c7-45fa-983b-36f4d4437b54.json and https://artists.proofprofile.net/proofs/artist/ad88b308-34c7-45fa-983b-36f4d4437b54.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 0x0c14793c1e6751bee6eab2430a9e6c499767928c5042d872b08b619704565144. 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/4UuHWIkAWnN176A2rx7YFB.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/4UuHWIkAWnN176A2rx7YFB.
{"copyright_id":"0x6f4fcbcc829ccee8997540aa012c82e97a4309c0bbaa39afb370b48118193f58","isrc":"USJI10400784","name":"Ohio (Come Back To Texas)","registered_at":"2026-06-07T23:31:41Z","spotify_id":"4NRysDAWZYDptR95RN7TL7","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f4fcbcc829ccee8997540aa012c82e97a4309c0bbaa39afb370b48118193f58. 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/4NRysDAWZYDptR95RN7TL7.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/4NRysDAWZYDptR95RN7TL7.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f1e601b37ff7f3103af5b4748313b1e2cbde92a167fb10ea8d163ad7c54a9b1. 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/3L2Ihz1caZV1GTre2cfUun.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/3L2Ihz1caZV1GTre2cfUun.
High School Never Ends - Main Version - Explicit
{"copyright_id":"0x1b82aa80d5fed97c488c14f3284f0df48fabe9c6c3317ed043e404a3ae44529a","isrc":"USJI10600507","name":"High School Never Ends - Main Version - Explicit","registered_at":"2026-06-01T14:25:10Z","spotify_id":"1bhjMY5O0ZjB41OHcdRH0a","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b82aa80d5fed97c488c14f3284f0df48fabe9c6c3317ed043e404a3ae44529a. 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/1bhjMY5O0ZjB41OHcdRH0a.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/1bhjMY5O0ZjB41OHcdRH0a.
{"copyright_id":"0xdaecdfe1e7ac3e6834d0452d5a07ba526d917d351a461dbc336d9b74e9eb3210","isrc":"USJI10600914","name":"Val Kilmer","registered_at":"2026-06-06T20:35:40Z","spotify_id":"4W9RV2oWnpspuD2EifMKSh","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdaecdfe1e7ac3e6834d0452d5a07ba526d917d351a461dbc336d9b74e9eb3210. 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/4W9RV2oWnpspuD2EifMKSh.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/4W9RV2oWnpspuD2EifMKSh.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb86dc997ff5ec7ba25577e1feaa124adc9c50e8683ea47a09f167b23d90d57c0. 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/0VV88Mpi8nzLH0Kqk0F7Io.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/0VV88Mpi8nzLH0Kqk0F7Io.
Why Don't I Miss You? - Main Version - Explicit
{"copyright_id":"0x94826d8b26893fab2cfe5b33c49ad82608a997ee90bd6495a2d4e911b70cb610","isrc":"USJI10600916","name":"Why Don't I Miss You? - Main Version - Explicit","registered_at":"2026-06-11T22:52:49Z","spotify_id":"7cJB2lLZUqvhTLq8DSgiTB","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94826d8b26893fab2cfe5b33c49ad82608a997ee90bd6495a2d4e911b70cb610. 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/7cJB2lLZUqvhTLq8DSgiTB.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/7cJB2lLZUqvhTLq8DSgiTB.
{"copyright_id":"0xb952fb6a9a9b54b8372ed90fb68f6f174fc0097c1272efe37f33b226b6b8ccdf","isrc":"USJI10600918","name":"A Friendly Goodbye","registered_at":"2026-06-09T22:56:26Z","spotify_id":"6BswpbaS2gqMyldhxD9HNO","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb952fb6a9a9b54b8372ed90fb68f6f174fc0097c1272efe37f33b226b6b8ccdf. 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/6BswpbaS2gqMyldhxD9HNO.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/6BswpbaS2gqMyldhxD9HNO.
Luckiest Loser - Main Version - Explicit
{"copyright_id":"0x02492d2b7bb7241a2b9e1160706197b2fce745c4d719262b4560116e9f666e6a","isrc":"USJI10600922","name":"Luckiest Loser - Main Version - Explicit","registered_at":"2026-06-08T16:13:53Z","spotify_id":"4smlk42TtjpU25ctCIhg3z","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02492d2b7bb7241a2b9e1160706197b2fce745c4d719262b4560116e9f666e6a. 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/4smlk42TtjpU25ctCIhg3z.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/4smlk42TtjpU25ctCIhg3z.
Love Sick Stomach Ache (Sugar Coated Accident)
{"copyright_id":"0x3540a6ce9e5b79dea831a849e3c2fc1fd6090cd7766ad18810a558f7dea3ffc7","isrc":"USJI10600919","name":"Love Sick Stomach Ache (Sugar Coated Accident)","registered_at":"2026-06-18T12:26:10Z","spotify_id":"0RdQJH0Sbtqso96vtSdN2o","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3540a6ce9e5b79dea831a849e3c2fc1fd6090cd7766ad18810a558f7dea3ffc7. 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/0RdQJH0Sbtqso96vtSdN2o.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/0RdQJH0Sbtqso96vtSdN2o.
{"copyright_id":"0x5e52ccef38c9120b4659cd4b3151c223d0b167f03128e549cbc2a8dd96a57a96","isrc":"USJI10600920","name":"Much More Beautiful Person","registered_at":"2026-06-18T09:10:01Z","spotify_id":"6DkUyA9RvU5YHqFmY6MHmm","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e52ccef38c9120b4659cd4b3151c223d0b167f03128e549cbc2a8dd96a57a96. 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/6DkUyA9RvU5YHqFmY6MHmm.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/6DkUyA9RvU5YHqFmY6MHmm.
Friends Like You - Main Version - Explicit
{"copyright_id":"0x08e98f1afc3c79634605aedbf131cae3951d856a895b1a17a82f4cd69f016c69","isrc":"USJI10600924","name":"Friends Like You - Main Version - Explicit","registered_at":"2026-06-19T20:52:53Z","spotify_id":"4ZUFhWfwcsSxpX77LmkrLr","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08e98f1afc3c79634605aedbf131cae3951d856a895b1a17a82f4cd69f016c69. 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/4ZUFhWfwcsSxpX77LmkrLr.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/4ZUFhWfwcsSxpX77LmkrLr.
{"copyright_id":"0x4b8e7266e7fa85c3c14f6b66ffa28c4e7c191f99b55d059110d8fed5d8ecb9cd","isrc":"USJI10600925","name":"When We Die","registered_at":"2026-06-05T19:17:40Z","spotify_id":"4BQ5veLdxzd8nFH8AKZKld","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b8e7266e7fa85c3c14f6b66ffa28c4e7c191f99b55d059110d8fed5d8ecb9cd. 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/4BQ5veLdxzd8nFH8AKZKld.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/4BQ5veLdxzd8nFH8AKZKld.
99 Biker Friends - Main Version - Explicit
{"copyright_id":"0xa7205c3f5976fcff701477913e0b91f4621ed2a21c0547a2da46149c836b27aa","isrc":"USJI10600926","name":"99 Biker Friends - Main Version - Explicit","registered_at":"2026-06-07T16:54:30Z","spotify_id":"39EGQyplmHWxKPVTMSoKuc","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7205c3f5976fcff701477913e0b91f4621ed2a21c0547a2da46149c836b27aa. 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/39EGQyplmHWxKPVTMSoKuc.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/39EGQyplmHWxKPVTMSoKuc.
{"copyright_id":"0xf25593ebd81dde1b60c4fd8052a1b5502439858925e3a1171b5863efe8d3f1a7","isrc":"USJI10600928","name":"Don't Let It Be Love - Main Version -","registered_at":"2026-06-19T20:53:57Z","spotify_id":"3MQVWYikfPocrJ4Ai3iUUI","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf25593ebd81dde1b60c4fd8052a1b5502439858925e3a1171b5863efe8d3f1a7. 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/3MQVWYikfPocrJ4Ai3iUUI.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/3MQVWYikfPocrJ4Ai3iUUI.
If You Come Back To Me/Outro - Main Version - Explicit
{"copyright_id":"0x7f04f9389eb6c0ea53ade20d47fd63da9610cdb22ec433846dc955ebadf21845","isrc":"USJI10600929","name":"If You Come Back To Me/Outro - Main Version - Explicit","registered_at":"2026-06-21T14:36:21Z","spotify_id":"3ulr3IKwhadvq5JZUuyWGZ","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f04f9389eb6c0ea53ade20d47fd63da9610cdb22ec433846dc955ebadf21845. 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/3ulr3IKwhadvq5JZUuyWGZ.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/3ulr3IKwhadvq5JZUuyWGZ.
Right Here Waiting For You (feat. Bowling for Soup)
{"copyright_id":"0xff4a628ca6d277f78004f13752253b067b782d601b2a83aca7b6c95d4e52ab43","isrc":"QMFHE1400262","name":"Right Here Waiting For You (feat. Bowling for Soup)","registered_at":"2026-06-20T19:31:12Z","spotify_id":"6OoiNPIfm7LUGIH4By7Ndz","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff4a628ca6d277f78004f13752253b067b782d601b2a83aca7b6c95d4e52ab43. 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/6OoiNPIfm7LUGIH4By7Ndz.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/6OoiNPIfm7LUGIH4By7Ndz.
{"copyright_id":"0x426f7c39d99d508acd077723299ef2cd97707c0fab37790e7e5ebe5c2adde34d","isrc":"QMFHE1400261","name":"I Know Right (feat. Bowling for Soup)","registered_at":"2026-06-24T11:58:00Z","spotify_id":"0YnwcHtvCC4lpf2iUjam4L","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x426f7c39d99d508acd077723299ef2cd97707c0fab37790e7e5ebe5c2adde34d. 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/0YnwcHtvCC4lpf2iUjam4L.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/0YnwcHtvCC4lpf2iUjam4L.