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 0x98ce82ee5ad2c0b44547fe24abcb9fc4e0d847cdedbaf411c81aa29c1a4fb6d4. 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/a84acffb-921a-4264-8b0e-6c85ca30fb53.json and https://artists.proofprofile.net/proofs/artist/a84acffb-921a-4264-8b0e-6c85ca30fb53.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 0x18654d547c3b46e1eee175d1b69c3044763b92641becbee448d6927b5f3decd5. 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/3cGCvS7Pt3tH5kmm2mhGai.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/3cGCvS7Pt3tH5kmm2mhGai.
Babylon (feat. Denzel Curry) - Skrillex & Ronny J Remix
{"copyright_id":"0x6e0ac40765183b6e9e90bbbcf240c0646b592f9cd2e3f89913747352f2a0d8a6","isrc":"USAT21704167","name":"Babylon (feat. Denzel Curry) - Skrillex & Ronny J Remix","registered_at":"2026-06-04T11:49:52Z","spotify_id":"0sW7xBDLtKuGvcPxmt75CT","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e0ac40765183b6e9e90bbbcf240c0646b592f9cd2e3f89913747352f2a0d8a6. 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/0sW7xBDLtKuGvcPxmt75CT.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/0sW7xBDLtKuGvcPxmt75CT.
Babylon (feat. Denzel Curry) - Sober Rob & Oshi Remix
{"copyright_id":"0xd09e12b5cf80f09e75fed6a7761b1598e795163ecc8e40a5d3a46e389390cf81","isrc":"USAT21704160","name":"Babylon (feat. Denzel Curry) - Sober Rob & Oshi Remix","registered_at":"2026-06-11T11:16:06Z","spotify_id":"01HwCiFwoKttnf2ZuavsZi","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd09e12b5cf80f09e75fed6a7761b1598e795163ecc8e40a5d3a46e389390cf81. 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/01HwCiFwoKttnf2ZuavsZi.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/01HwCiFwoKttnf2ZuavsZi.
Babylon (feat. Denzel Curry) - Josh Pan & X&G Remix
{"copyright_id":"0xdf765cea5012076b31a73e41cb2efd33499323db180111d5e0d1bb601e835ed4","isrc":"USAT21704168","name":"Babylon (feat. Denzel Curry) - Josh Pan & X&G Remix","registered_at":"2026-06-26T01:11:32Z","spotify_id":"531FLTy7W0RcSwC0WWpD2A","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf765cea5012076b31a73e41cb2efd33499323db180111d5e0d1bb601e835ed4. 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/531FLTy7W0RcSwC0WWpD2A.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/531FLTy7W0RcSwC0WWpD2A.
{"copyright_id":"0xe692c8b2a3d82bf5905680bf94e834bce0defc3657c399aa2bb77bea51b88386","isrc":"USAT21704751","name":"Past Life (feat. Opia)","registered_at":"2026-06-10T04:24:32Z","spotify_id":"2KzkVMFoChXlbhWfHQt8k7","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe692c8b2a3d82bf5905680bf94e834bce0defc3657c399aa2bb77bea51b88386. 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/2KzkVMFoChXlbhWfHQt8k7.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/2KzkVMFoChXlbhWfHQt8k7.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ff2469f6544c0ebcfe4ca6d98c5fd9af7869e269af6d371774601c3ede18308. 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/0M620WTaDdSvPbXKEEH9zs.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/0M620WTaDdSvPbXKEEH9zs.
{"copyright_id":"0xe6a0c1d5d37e94ce7c1fc6cc546e73742cc86bea6d7d55faf71843a0b4b12b26","isrc":"USAT21905929","name":"Back To You (feat. Kiiara)","registered_at":"2026-06-08T20:33:51Z","spotify_id":"5xmIfR6wZ4jiNR6jmnI6fg","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6a0c1d5d37e94ce7c1fc6cc546e73742cc86bea6d7d55faf71843a0b4b12b26. 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/5xmIfR6wZ4jiNR6jmnI6fg.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/5xmIfR6wZ4jiNR6jmnI6fg.
Hard To Say Goodbye (feat. Chloe Angelides)
Hard To Say Goodbye (feat. Chloe Angelides) [Tep No Remix]
Hard To Say Goodbye (feat. Chloe Angelides) - Tep No Remix
Hard To Say Goodbye (feat. Chloe Angelides) [BRKLYN Remix]
Hard To Say Goodbye (feat. Chloe Angelides) - BRKLYN Remix
Hard To Say Goodbye (feat. Chloe Angelides) [Win & Woo Remix]
Hard To Say Goodbye (feat. Chloe Angelides) - Win & Woo Remix
Hard To Say Goodbye (feat. Chloe Angelides) [Nitti Gritti Remix]
Hard To Say Goodbye (feat. Chloe Angelides) - Nitti Remix
{"copyright_id":"0x7ed17f21ccb8fcc7cb9e53fc032595894d7f43eb5759f53ff68dc53c77e51751","isrc":"USAT22001721","name":"Hard To Say Goodbye (feat. Chloe Angelides) - Nitti Remix","registered_at":"2026-06-18T16:56:29Z","spotify_id":"1WHVuaFzOyvEd3gATzifQd","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ed17f21ccb8fcc7cb9e53fc032595894d7f43eb5759f53ff68dc53c77e51751. 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/1WHVuaFzOyvEd3gATzifQd.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/1WHVuaFzOyvEd3gATzifQd.
Hard To Say Goodbye (feat. Chloe Angelides) [Ship Wrek Remix]
Hard To Say Goodbye (feat. Chloe Angelides) - Ship Wrek Remix
{"copyright_id":"0xe124b4be8bf3735a97e3352831ba8595d034dcee7df6dc11d8819d9d7271cb7b","isrc":"USAT22002202","name":"Hard To Say Goodbye (feat. Chloe Angelides) - Ship Wrek Remix","registered_at":"2026-06-09T16:11:19Z","spotify_id":"5R0W21CFhLqVw3epCGrdSB","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe124b4be8bf3735a97e3352831ba8595d034dcee7df6dc11d8819d9d7271cb7b. 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/5R0W21CFhLqVw3epCGrdSB.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/5R0W21CFhLqVw3epCGrdSB.
Back To You (feat. Kiiara) [Codeko Remix]
Back To You (feat. Kiiara) - Codeko Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd86059b8663d5c3d5082c5d1c5075683339096711cb5d079cf70c036979f660. 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/4ykbXSPhadCNicPQJSCYJp.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/4ykbXSPhadCNicPQJSCYJp.
Drown (feat. Au/Ra) [Unknown Brain Remix]
Drown (feat. Au/Ra) - Unknown Brain Remix
Back To You (feat. Kiiara) [Over Easy Remix]
Back To You (feat. Kiiara) - Over Easy Remix
{"copyright_id":"0x816b6a32e298376e2715d7bb8288d3d20b37689cf35a9e59c2a00aa9def04018","isrc":"USAT22005186","name":"Back To You (feat. Kiiara) - Over Easy Remix","registered_at":"2026-06-24T14:07:00Z","spotify_id":"4Vty4oyamQr0WhjEcSOztH","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x816b6a32e298376e2715d7bb8288d3d20b37689cf35a9e59c2a00aa9def04018. 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/4Vty4oyamQr0WhjEcSOztH.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/4Vty4oyamQr0WhjEcSOztH.
{"copyright_id":"0x422d4771fdc96312c2396de05870079d8e6718bd48cf657a93772c71cd2b9aef","isrc":"USAT22005800","name":"Drown (feat. Au/Ra) - Alex Ross Remix","registered_at":"2026-06-20T05:19:38Z","spotify_id":"0o4GPd09TQbLwQtB1RfLDd","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x422d4771fdc96312c2396de05870079d8e6718bd48cf657a93772c71cd2b9aef. 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/0o4GPd09TQbLwQtB1RfLDd.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/0o4GPd09TQbLwQtB1RfLDd.
Back To You (feat. Kiiara) [West Coast Massive Remix]
Back To You (feat. Kiiara) - West Coast Massive Remix
{"copyright_id":"0xb34870bf4092bece21da0d274f96528cf42ffb1fb9e107ea0b7ad718b9cd243d","isrc":"USAT21602230","name":"Mind (feat. Kai) - Ekali & Gravez Remix","registered_at":"2026-06-06T10:16:56Z","spotify_id":"6Becybd5TsDaxOiP9YzGf9","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb34870bf4092bece21da0d274f96528cf42ffb1fb9e107ea0b7ad718b9cd243d. 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/6Becybd5TsDaxOiP9YzGf9.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/6Becybd5TsDaxOiP9YzGf9.
{"copyright_id":"0xef1defeb55e1755762a4d76d11da415eb40b028e7555bc1707dd97a5b91a48db","isrc":"GBARL1700271","name":"Don't Leave - Ekali Remix","registered_at":"2026-06-06T08:26:52Z","spotify_id":"4OCvd4ila7Zp0tEsFWs2hP","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef1defeb55e1755762a4d76d11da415eb40b028e7555bc1707dd97a5b91a48db. 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/4OCvd4ila7Zp0tEsFWs2hP.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/4OCvd4ila7Zp0tEsFWs2hP.
{"copyright_id":"0xa5aeb954114dc1c1fc24bf1a8e5e9026140f2a0f1c5d6e5c8ff8579dcb83274f","isrc":"AUFF01600851","name":"Meet In The Middle (Ekali Remix)","registered_at":"2026-06-09T07:42:23Z","spotify_id":"3gxv9so31zbFnmXOIUwXnc","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5aeb954114dc1c1fc24bf1a8e5e9026140f2a0f1c5d6e5c8ff8579dcb83274f. 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/3gxv9so31zbFnmXOIUwXnc.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/3gxv9so31zbFnmXOIUwXnc.
{"copyright_id":"0xd6b5840b623e4329f48ca03a41fc8c0812fbf09a5947f8f60cd92670ac592a34","isrc":"USYBL1500855","name":"Weight in Gold - Ekali Remix","registered_at":"2026-06-07T06:32:52Z","spotify_id":"4mRpWePw7B8ePqfP7aMD7S","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6b5840b623e4329f48ca03a41fc8c0812fbf09a5947f8f60cd92670ac592a34. 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/4mRpWePw7B8ePqfP7aMD7S.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/4mRpWePw7B8ePqfP7aMD7S.