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 0xda733a3675e18ac4565466072bd638901270caae1582e967dd350d27efb9bd63. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b12c1109-9da4-4aa8-9a68-205490f75cbf.json and https://artists.proofprofile.net/proofs/artist/b12c1109-9da4-4aa8-9a68-205490f75cbf.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Little Do You Know - Nightcore Switching Vocals
{"copyright_id":"0x9d4bd8db38346cf018f2d8ff9f5a9d65010a039758f5d2ddf37d917e1380d1cb","isrc":"UKZGC2307658","name":"Little Do You Know - Nightcore Switching Vocals","registered_at":"2026-06-05T22:12:15Z","spotify_id":"6iTXGTHaW3obrPohvsFPIF","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 0x9d4bd8db38346cf018f2d8ff9f5a9d65010a039758f5d2ddf37d917e1380d1cb. 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/6iTXGTHaW3obrPohvsFPIF.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/6iTXGTHaW3obrPohvsFPIF.
{"copyright_id":"0xda4385c92cc85bb5421cd8a0749b25c49a03586c640b1c9a0861adcb852f3135","isrc":"UKZGC2307659","name":"Little Do You Know - Sped Up + Reverb","registered_at":"2026-06-07T08:46:21Z","spotify_id":"3rO7mWaTmkSyfPjGPPALje","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda4385c92cc85bb5421cd8a0749b25c49a03586c640b1c9a0861adcb852f3135. 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/3rO7mWaTmkSyfPjGPPALje.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/3rO7mWaTmkSyfPjGPPALje.
{"copyright_id":"0x48f4a14ce13d2dfd750f12e27dd6daa8a3d74f3f0d9b7c97af2f665d95b3bde7","isrc":"UKZGC2307660","name":"Little Do You Know - Slowed + Reverb","registered_at":"2026-06-09T19:31:14Z","spotify_id":"3TGRoTGBxxsEHWxuE55kDa","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48f4a14ce13d2dfd750f12e27dd6daa8a3d74f3f0d9b7c97af2f665d95b3bde7. 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/3TGRoTGBxxsEHWxuE55kDa.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/3TGRoTGBxxsEHWxuE55kDa.
{"copyright_id":"0x4e3a68031475dbd6740b309548281ef917ce9629e59ea3210dbbfb4594b6798c","isrc":"UKZGC2308204","name":"Star Walkin' - Sped Up + Reverb","registered_at":"2026-06-20T10:20:56Z","spotify_id":"7cGzKzOZNiOZCm94Bcj3gY","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e3a68031475dbd6740b309548281ef917ce9629e59ea3210dbbfb4594b6798c. 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/7cGzKzOZNiOZCm94Bcj3gY.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/7cGzKzOZNiOZCm94Bcj3gY.
Nothing's Gonna Change My Love For You - Nightcore Version
Nothing's Gonna Change My Love For You - Slowed + Reverb
Nothing's Gonna Change My Love For You - Sped Up + Reverb
{"copyright_id":"0xb8121e7bc26ed75075f5443c05504f4b70773ee17ec151064549a9e825bbe964","isrc":"UKZGC2308545","name":"Nothing's Gonna Change My Love For You - Sped Up + Reverb","registered_at":"2026-06-19T06:03:19Z","spotify_id":"75QUk45DVKgdbPHzS8BFCF","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8121e7bc26ed75075f5443c05504f4b70773ee17ec151064549a9e825bbe964. 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/75QUk45DVKgdbPHzS8BFCF.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/75QUk45DVKgdbPHzS8BFCF.
House With No Mirrors - Sped up + Reverb
{"copyright_id":"0x02b1515c6a0f8165bc78ee8f948b9526595593de8ebc691f3e6eb570b1d829ad","isrc":"UKZGC2400481","name":"House With No Mirrors - Nightcore","registered_at":"2026-06-23T12:22:41Z","spotify_id":"2oXiFzyW69K3tFqJC5hywG","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02b1515c6a0f8165bc78ee8f948b9526595593de8ebc691f3e6eb570b1d829ad. 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/2oXiFzyW69K3tFqJC5hywG.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/2oXiFzyW69K3tFqJC5hywG.
House With No Mirrors - Sped Up + Reverb
{"copyright_id":"0xc69f1d7808ccfe9736e3028d73ea0ddcfdb5b31e2bb6c31002b4a71818ae22b0","isrc":"UKZGC2400483","name":"House With No Mirrors - Sped Up + Reverb","registered_at":"2026-06-27T11:11:42Z","spotify_id":"2jnzXKV7zW2f2xxmD8Nja3","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc69f1d7808ccfe9736e3028d73ea0ddcfdb5b31e2bb6c31002b4a71818ae22b0. 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/2jnzXKV7zW2f2xxmD8Nja3.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/2jnzXKV7zW2f2xxmD8Nja3.
{"copyright_id":"0xd00078b6d6f7944b574e20f271618b96e24fddbf64931efd02d2b9584bd87e4f","isrc":"UKZGC2401594","name":"Sad Song - Female Version","registered_at":"2026-06-23T12:21:26Z","spotify_id":"7JyqPVkfAY0PpKXFSzRG60","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd00078b6d6f7944b574e20f271618b96e24fddbf64931efd02d2b9584bd87e4f. 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/7JyqPVkfAY0PpKXFSzRG60.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/7JyqPVkfAY0PpKXFSzRG60.
{"copyright_id":"0x56fb903837be3f3b383d79812238fdc09ec7e1586122e306dd57fd583ead4c62","isrc":"UKZGC2401595","name":"Sad Song - Nightcore","registered_at":"2026-06-21T07:52:23Z","spotify_id":"3EKLMzpsth11pDxSxLlqBG","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56fb903837be3f3b383d79812238fdc09ec7e1586122e306dd57fd583ead4c62. 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/3EKLMzpsth11pDxSxLlqBG.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/3EKLMzpsth11pDxSxLlqBG.
{"copyright_id":"0xbb1761863b6c00ff9ebc0b9f9f33df16d2ba5f362671fd240a6004f7e39938f9","isrc":"UKZGC2401597","name":"Sad Song - Sped Up + Reverb","registered_at":"2026-06-09T09:48:29Z","spotify_id":"3cfZYUS1jblmDduNQkJkLA","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb1761863b6c00ff9ebc0b9f9f33df16d2ba5f362671fd240a6004f7e39938f9. 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/3cfZYUS1jblmDduNQkJkLA.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/3cfZYUS1jblmDduNQkJkLA.
{"copyright_id":"0x16b5716d57ff1ad34f99f16a8071feb9d11df2717c2a25b249048d4b9c8abc00","isrc":"UKZGC2401841","name":"Dancing With Your Ghost - Nightcore","registered_at":"2026-06-20T19:57:03Z","spotify_id":"5U7pfDILBsX1ziJRF3aiAn","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16b5716d57ff1ad34f99f16a8071feb9d11df2717c2a25b249048d4b9c8abc00. 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/5U7pfDILBsX1ziJRF3aiAn.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/5U7pfDILBsX1ziJRF3aiAn.
Dancing With Your Ghost - Slowed + Reverb
Dancing With Your Ghost - Sped Up + Reverb
Dancing With Your Ghost - Sped up + Reverb
{"copyright_id":"0x86b1ed543e8c6db9e66d1aa6c52fff75c68386296d8bf4da65cd640ea1d50a58","isrc":"UKZGC2404885","name":"I See Your Monsters","registered_at":"2026-06-05T13:34:11Z","spotify_id":"4FW3CQ408efqdq6pFQzNh0","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86b1ed543e8c6db9e66d1aa6c52fff75c68386296d8bf4da65cd640ea1d50a58. 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/4FW3CQ408efqdq6pFQzNh0.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/4FW3CQ408efqdq6pFQzNh0.
{"copyright_id":"0x66563df5aaa66d5732f2d507e4d0617acdaa4485ae4b3e0d4833fe166e45f1aa","isrc":"UKZGC2403176","name":"All My Friends Are Fake - Nightcore","registered_at":"2026-06-19T15:32:34Z","spotify_id":"6vi8tlXkRC4H47cHd1u8Nq","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66563df5aaa66d5732f2d507e4d0617acdaa4485ae4b3e0d4833fe166e45f1aa. 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/6vi8tlXkRC4H47cHd1u8Nq.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/6vi8tlXkRC4H47cHd1u8Nq.
All My Friends Are Fake - Slowed + Reverb
{"copyright_id":"0x3b78f548cf801d0f2545ad02b6fabc698457b50d1e45de29c43861248ebc93d3","isrc":"UKZGC2403178","name":"All My Friends Are Fake","registered_at":"2026-06-25T10:30:26Z","spotify_id":"22bGUOT2PTEE0YZwA6Tpcx","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b78f548cf801d0f2545ad02b6fabc698457b50d1e45de29c43861248ebc93d3. 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/22bGUOT2PTEE0YZwA6Tpcx.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/22bGUOT2PTEE0YZwA6Tpcx.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa00a580e0454ef6dc1f137084e98c4fe5e9a14d17cfb6aa722f82f719300f291. 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/5Md9xYTRo3976s4svz1LUn.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/5Md9xYTRo3976s4svz1LUn.
{"copyright_id":"0xa207b03bdbe0891073b1de2877cadfb1d4b83bffad586062f1148e19764f34b4","isrc":"UKZGC2401472","name":"I Scare Myself - Nightcore","registered_at":"2026-06-10T06:06:05Z","spotify_id":"1cC0Ro9t62mw2yyjnzqThp","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa207b03bdbe0891073b1de2877cadfb1d4b83bffad586062f1148e19764f34b4. 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/1cC0Ro9t62mw2yyjnzqThp.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/1cC0Ro9t62mw2yyjnzqThp.
{"copyright_id":"0x85110e8eeb3bede5f159f924607a56cfe4d94b41808a80b5cfdbabbeda100742","isrc":"UKZGC2309552","name":"Let Me Down Slowly - Nightcore","registered_at":"2026-06-18T02:58:26Z","spotify_id":"3c1EwgnLZHTbiIzk4wu4Cy","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85110e8eeb3bede5f159f924607a56cfe4d94b41808a80b5cfdbabbeda100742. 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/3c1EwgnLZHTbiIzk4wu4Cy.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/3c1EwgnLZHTbiIzk4wu4Cy.