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 0xa0cb5c1a289b52f71810b0fcf48ce93899bce744d70d43f5da2eba5914f17965. 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/3a9edf53-08e7-4d55-bcad-122d041d96f5.json and https://artists.proofprofile.net/proofs/artist/3a9edf53-08e7-4d55-bcad-122d041d96f5.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
{"copyright_id":"0x547bd9a8c9aa6ab455e509d7193a6d7b96f3cafcb7f700739f17526fe407600f","isrc":"USRH10901907","name":"She Drives Me Crazy","registered_at":"2026-06-01T04:36:34Z","spotify_id":"4d6eqRtpDX7tydHJGDZUBQ","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 0x547bd9a8c9aa6ab455e509d7193a6d7b96f3cafcb7f700739f17526fe407600f. 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/4d6eqRtpDX7tydHJGDZUBQ.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/4d6eqRtpDX7tydHJGDZUBQ.
{"copyright_id":"0xfd9bc80928f21c7d4d2b34d39037b4c2d69f2b17f91a35178bfda3c6396260c3","isrc":"GBAMY8800001","name":"She Drives Me Crazy","registered_at":"2026-06-22T01:42:41Z","spotify_id":"21eHSx2NhsFvpShJYuFcZN","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd9bc80928f21c7d4d2b34d39037b4c2d69f2b17f91a35178bfda3c6396260c3. 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/21eHSx2NhsFvpShJYuFcZN.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/21eHSx2NhsFvpShJYuFcZN.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb74ae662f4f890859d862b4d60d3d4741e0ddd290753e259f960f8def159c58f. 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/6lRkdG1HurVS72F9GoBeWJ.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/6lRkdG1HurVS72F9GoBeWJ.
Red Hot + Blue: A Tribute to Cole Porter
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a95752f17a6c7daa8b20c8040402bc90511df74d5614b3769c7ae244702ee32. 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/6gsKMkUufz3zODAlvRfrjU.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/6gsKMkUufz3zODAlvRfrjU.
The Raw & The Cooked (Remastered & Expanded)
{"copyright_id":"0x5b92f284995b06ecbe57e35169e81b997ee7fa86f7125fbbf0ab08d1a81bca2c","isrc":"GBAAP2000267","name":"She Drives Me Crazy - David Z 12\" Remix","registered_at":"2026-06-05T20:58:55Z","spotify_id":"3iZ0JKN1BE0byU8yb9KBwx","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b92f284995b06ecbe57e35169e81b997ee7fa86f7125fbbf0ab08d1a81bca2c. 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/3iZ0JKN1BE0byU8yb9KBwx.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/3iZ0JKN1BE0byU8yb9KBwx.
{"copyright_id":"0xd4e06007380cd58f0f805aeaccc8cc752a5f87638bebdc409edc64c3dfdab15e","isrc":"GBAAP2000255","name":"She Drives Me Crazy - Remastered","registered_at":"2026-06-05T08:12:45Z","spotify_id":"6cVCQiiMJ1jd3lbOo5Qx8U","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4e06007380cd58f0f805aeaccc8cc752a5f87638bebdc409edc64c3dfdab15e. 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/6cVCQiiMJ1jd3lbOo5Qx8U.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/6cVCQiiMJ1jd3lbOo5Qx8U.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb806388c687375aba12336f52bb81002239a1afed7a6df29489a9e622f877389. 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/6sEW3FsVtzuzlOmvzxJZ85.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/6sEW3FsVtzuzlOmvzxJZ85.
I'm Not the Man I Used to Be - Remastered
{"copyright_id":"0x10b20dc84a081178c50b3a34f9da69d93c71235a89d6e0d9467494741ef543c2","isrc":"GBAAP2000257","name":"I'm Not the Man I Used to Be - Remastered","registered_at":"2026-06-20T03:47:22Z","spotify_id":"3uCNJKSlZM0zbVp0DrjVUi","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10b20dc84a081178c50b3a34f9da69d93c71235a89d6e0d9467494741ef543c2. 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/3uCNJKSlZM0zbVp0DrjVUi.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/3uCNJKSlZM0zbVp0DrjVUi.
{"copyright_id":"0x86362cb30e00f19002e7e5dbd3df5c504fe00225392e729c1d73dbd10607139a","isrc":"GBAAP2000258","name":"I'm Not Satisfied - Remastered","registered_at":"2026-06-23T09:59:20Z","spotify_id":"6EQG4xOKkfshvZAqx68JvI","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86362cb30e00f19002e7e5dbd3df5c504fe00225392e729c1d73dbd10607139a. 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/6EQG4xOKkfshvZAqx68JvI.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/6EQG4xOKkfshvZAqx68JvI.
{"copyright_id":"0x1aad187ad5e51f52c0893e18a798b8fc5be43189ade8bb62d92f012ebc5737f7","isrc":"GBAAP2000259","name":"Tell Me What - Remastered","registered_at":"2026-06-25T07:41:16Z","spotify_id":"5GY7L9NAuh1rMwLbfXkcaC","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1aad187ad5e51f52c0893e18a798b8fc5be43189ade8bb62d92f012ebc5737f7. 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/5GY7L9NAuh1rMwLbfXkcaC.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/5GY7L9NAuh1rMwLbfXkcaC.
{"copyright_id":"0x3593b294ccdc47a3f0a3c3598997b2c42ac897b6387eaf6b921b09e9a0b52885","isrc":"GBAAP2000260","name":"Don't Look Back - Remastered","registered_at":"2026-06-19T08:52:41Z","spotify_id":"6skqlhBr5ilaSrhp73Nc1T","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3593b294ccdc47a3f0a3c3598997b2c42ac897b6387eaf6b921b09e9a0b52885. 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/6skqlhBr5ilaSrhp73Nc1T.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/6skqlhBr5ilaSrhp73Nc1T.
{"copyright_id":"0x6587e45690e34cf51ef50fbff77a7a98ce1acfa2d2126dd952898c0542a10ab0","isrc":"GBAAP2000263","name":"As Hard As It Is - Remastered","registered_at":"2026-06-25T17:19:33Z","spotify_id":"5NNu5nqzKkQOqGmrI4kPZO","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6587e45690e34cf51ef50fbff77a7a98ce1acfa2d2126dd952898c0542a10ab0. 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/5NNu5nqzKkQOqGmrI4kPZO.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/5NNu5nqzKkQOqGmrI4kPZO.
{"copyright_id":"0xc99c76ff9e45185952a508ebe46cdc68357bfae587c40bfc9ccff4d4b0ca2168","isrc":"GBAAP2000264","name":"Ever Fallen in Love? - Remastered","registered_at":"2026-06-20T22:50:08Z","spotify_id":"5f43q2KK6Cj8gDMpz7H0vN","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc99c76ff9e45185952a508ebe46cdc68357bfae587c40bfc9ccff4d4b0ca2168. 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/5f43q2KK6Cj8gDMpz7H0vN.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/5f43q2KK6Cj8gDMpz7H0vN.
{"copyright_id":"0x0e465df3cc3bb69a1ecdfaa58940c2ed563379314cfa380377c4fcf72a38bd2c","isrc":"GBAAP2000265","name":"You Never Know - Remastered","registered_at":"2026-06-08T02:26:07Z","spotify_id":"2ZlyckYEfZlwsbLMUVmahF","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e465df3cc3bb69a1ecdfaa58940c2ed563379314cfa380377c4fcf72a38bd2c. 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/2ZlyckYEfZlwsbLMUVmahF.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/2ZlyckYEfZlwsbLMUVmahF.
{"copyright_id":"0x6a7299413ea43c593b6a487dd0176ebc34088c4cb7088cb67aa957ffd0b98d37","isrc":"GBAAP2000266","name":"Social Security - Remastered","registered_at":"2026-06-10T02:27:15Z","spotify_id":"5UrAlzWmO1JufJ5UkOCQDQ","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a7299413ea43c593b6a487dd0176ebc34088c4cb7088cb67aa957ffd0b98d37. 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/5UrAlzWmO1JufJ5UkOCQDQ.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/5UrAlzWmO1JufJ5UkOCQDQ.
Good Thing - Nothing Like the Single Mix
{"copyright_id":"0xf56a6095f124c5d6669cb81dec48a4281252547805d50d752d00d28f8526e02c","isrc":"GBAAP2000268","name":"Good Thing - Nothing Like the Single Mix","registered_at":"2026-06-25T17:19:37Z","spotify_id":"2d7KF5qGcSEGo22rLxEGFz","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf56a6095f124c5d6669cb81dec48a4281252547805d50d752d00d28f8526e02c. 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/2d7KF5qGcSEGo22rLxEGFz.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/2d7KF5qGcSEGo22rLxEGFz.
Ever Fallen in Love? - John Potoker Extended Mix
I'm Not the Man I Used to Be - Jazzie B and Nellee Hooper Remix
{"copyright_id":"0x845b519131f0c1bd0247bc18bb83bd591d80cf0d292c2ec141efe1ee33093cd4","isrc":"GBAAP2000270","name":"I'm Not the Man I Used to Be - Jazzie B and Nellee Hooper Remix","registered_at":"2026-06-24T09:51:43Z","spotify_id":"6Tlx9aTdqkohcMaS1DC8AC","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x845b519131f0c1bd0247bc18bb83bd591d80cf0d292c2ec141efe1ee33093cd4. 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/6Tlx9aTdqkohcMaS1DC8AC.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/6Tlx9aTdqkohcMaS1DC8AC.