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 0xa53a43d4223a0be51ab689779d41db149a1facd26ffd79ee12164caa40c5b986. 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/0c537d32-5ed0-4b43-8db5-4d730b2b3c77.json and https://artists.proofprofile.net/proofs/artist/0c537d32-5ed0-4b43-8db5-4d730b2b3c77.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
{"copyright_id":"0x511d4cbafbcb89c497e41b6960b57150425bd385fea20c40fa2e0e39ebd73fda","isrc":"GBUM72309238","name":"If U Need It","registered_at":"2026-06-01T05:23:39Z","spotify_id":"5CaUUACiQFEf4zR5WoeIrp","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 0x511d4cbafbcb89c497e41b6960b57150425bd385fea20c40fa2e0e39ebd73fda. 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/5CaUUACiQFEf4zR5WoeIrp.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/5CaUUACiQFEf4zR5WoeIrp.
{"copyright_id":"0x82f1138677f54fbcbe23e52b1a6ea18b7171a11af52ead02fda7f0a067999e6f","isrc":"GBCFB2300507","name":"Peach - Thys Remix","registered_at":"2026-06-18T03:44:36Z","spotify_id":"0Jc6RAqy8fgsPgUwRfSySE","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82f1138677f54fbcbe23e52b1a6ea18b7171a11af52ead02fda7f0a067999e6f. 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/0Jc6RAqy8fgsPgUwRfSySE.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/0Jc6RAqy8fgsPgUwRfSySE.
{"copyright_id":"0x0bb01b1245c16074b47beffde67f1e14d10cfe31b819f3b565ac85d527520eca","isrc":"GBCFB2300508","name":"Peach VIP","registered_at":"2026-06-05T13:27:48Z","spotify_id":"35P8wQxbmltmHvawUxk6Uu","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bb01b1245c16074b47beffde67f1e14d10cfe31b819f3b565ac85d527520eca. 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/35P8wQxbmltmHvawUxk6Uu.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/35P8wQxbmltmHvawUxk6Uu.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76608126232b881cb8e48df40ae34e0b00f2be811dfbc7b608e398ee60ce0009. 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/1jiZcbNNuP4MOnJpesFn2j.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/1jiZcbNNuP4MOnJpesFn2j.
{"copyright_id":"0xeec020300ef2b1ced7cca7b2afc370beceeac63f841378e60fb7ed7040ab96f8","isrc":"GBCFB2200669","name":"Wait For It","registered_at":"2026-06-04T10:06:55Z","spotify_id":"2lcu2Fo5wSHxWuoOiSEOKO","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeec020300ef2b1ced7cca7b2afc370beceeac63f841378e60fb7ed7040ab96f8. 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/2lcu2Fo5wSHxWuoOiSEOKO.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/2lcu2Fo5wSHxWuoOiSEOKO.
{"copyright_id":"0x552eb0c8d55af21aaec7f1f4160b6ee6bd698e5082a7ab397b14401d7cf87316","isrc":"UKQNV2000056","name":"Somebody Else - Mixed","registered_at":"2026-06-04T12:47:01Z","spotify_id":"1x4pmH7GrvDNXLdnVROpD6","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x552eb0c8d55af21aaec7f1f4160b6ee6bd698e5082a7ab397b14401d7cf87316. 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/1x4pmH7GrvDNXLdnVROpD6.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/1x4pmH7GrvDNXLdnVROpD6.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22c34b858604ba03fdc61e2704857156b2236c5a9424fdc987899e3a5dc5ce88. 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/2W5ERTPofQ8wVrkljfqe98.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/2W5ERTPofQ8wVrkljfqe98.
{"copyright_id":"0x95ed97a3797562993a74be8fb33eac6c3a04d67a5264b53f15ccb52bc2fbd7c4","isrc":"UKQNV2000042","name":"Alone - Mixed","registered_at":"2026-06-05T20:50:40Z","spotify_id":"6uCcdUtPyJjggZektwENRi","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95ed97a3797562993a74be8fb33eac6c3a04d67a5264b53f15ccb52bc2fbd7c4. 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/6uCcdUtPyJjggZektwENRi.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/6uCcdUtPyJjggZektwENRi.
{"copyright_id":"0x2edba7c2cbe4caa2bad4f8e3f07e3acafe34ccc4ec3da0aaaf66d47683213606","isrc":"UKQNV2000034","name":"Oh Will - Mixed","registered_at":"2026-06-07T06:24:05Z","spotify_id":"4GezcVazgh1lHwgb3vrqds","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2edba7c2cbe4caa2bad4f8e3f07e3acafe34ccc4ec3da0aaaf66d47683213606. 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/4GezcVazgh1lHwgb3vrqds.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/4GezcVazgh1lHwgb3vrqds.
{"copyright_id":"0x252371f5e371a3ebeb2ab097afc79fff837ee6ab4f7c3273ae9d31602a39b6a0","isrc":"UKQNV2000031","name":"Find My Way Home - Mixed","registered_at":"2026-06-07T13:38:11Z","spotify_id":"2NmZDpQYcFGTPK2I19u60t","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x252371f5e371a3ebeb2ab097afc79fff837ee6ab4f7c3273ae9d31602a39b6a0. 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/2NmZDpQYcFGTPK2I19u60t.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/2NmZDpQYcFGTPK2I19u60t.
{"copyright_id":"0xf6056a7c6f90a24dc0296af2b93497b3d7c4ce9a1679cadd44650e5b531be7c1","isrc":"UKQNV2000049","name":"Whippet (Sweetie Irie Dub) - Mixed","registered_at":"2026-06-11T04:45:30Z","spotify_id":"7qwP9XdfZlj9biB1GZAPH8","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6056a7c6f90a24dc0296af2b93497b3d7c4ce9a1679cadd44650e5b531be7c1. 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/7qwP9XdfZlj9biB1GZAPH8.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/7qwP9XdfZlj9biB1GZAPH8.
{"copyright_id":"0x1777b845fbfa75bf677fa069ce7945e3987780b8d99a5988c658089680c0ae95","isrc":"GBUM72309289","name":"Goodums - Sammy Virji Remix","registered_at":"2026-06-01T19:27:44Z","spotify_id":"0SLedTMdKihqLsR6CGPAfD","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1777b845fbfa75bf677fa069ce7945e3987780b8d99a5988c658089680c0ae95. 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/0SLedTMdKihqLsR6CGPAfD.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/0SLedTMdKihqLsR6CGPAfD.
Summertime Blues (feat. Nathan Nicholson)
{"copyright_id":"0xd12e04a7f6747f3bdf254754463a3b321da64485592e7a234283bcc50a5184f6","isrc":"USUG12402645","name":"Summertime Blues (feat. Nathan Nicholson)","registered_at":"2026-06-01T09:14:41Z","spotify_id":"6q36Cqt2d3O5jqrQR9uXCp","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd12e04a7f6747f3bdf254754463a3b321da64485592e7a234283bcc50a5184f6. 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/6q36Cqt2d3O5jqrQR9uXCp.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/6q36Cqt2d3O5jqrQR9uXCp.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76608126232b881cb8e48df40ae34e0b00f2be811dfbc7b608e398ee60ce0009. 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/6wMs3sDl0VydlH0xKg1YGy.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/6wMs3sDl0VydlH0xKg1YGy.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76608126232b881cb8e48df40ae34e0b00f2be811dfbc7b608e398ee60ce0009. 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/5cGZN0P1QnSfhCFBCHtp2N.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/5cGZN0P1QnSfhCFBCHtp2N.
{"copyright_id":"0xa70a22bf2e6a1f3b4ff6fe608514787efd3d8a747c7f6b9bb75623c016ac25e4","isrc":"UKQNV2100273","name":"Truth (with Flava D)","registered_at":"2026-06-07T06:40:59Z","spotify_id":"6Z9VJYXNPM5NPbC24L3DRp","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa70a22bf2e6a1f3b4ff6fe608514787efd3d8a747c7f6b9bb75623c016ac25e4. 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/6Z9VJYXNPM5NPbC24L3DRp.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/6Z9VJYXNPM5NPbC24L3DRp.
Spice Up My Life (feat. Paige Eliza) - Flava D Remix
{"copyright_id":"0xdd3e8fbeb965a57f4388af67b0c82b9ad3fe7fcec387f22933276bb3eb84e10e","isrc":"UKQNV2000158","name":"Spice Up My Life (feat. Paige Eliza) - Flava D Remix","registered_at":"2026-06-21T02:59:35Z","spotify_id":"3jO40D0iC6u2i2EplYWj5m","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd3e8fbeb965a57f4388af67b0c82b9ad3fe7fcec387f22933276bb3eb84e10e. 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/3jO40D0iC6u2i2EplYWj5m.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/3jO40D0iC6u2i2EplYWj5m.
{"copyright_id":"0x3ca4d7196b22fde0911eabc2023308b135ef7e93c9a403985bbd9c9d0a3d5e9d","isrc":"UKQNV2000098","name":"Spice Up My Life (feat. Paige Eliza)","registered_at":"2026-06-04T12:59:22Z","spotify_id":"2CFLvDjd9xLsOiO2sZ89yF","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ca4d7196b22fde0911eabc2023308b135ef7e93c9a403985bbd9c9d0a3d5e9d. 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/2CFLvDjd9xLsOiO2sZ89yF.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/2CFLvDjd9xLsOiO2sZ89yF.
{"copyright_id":"0xded20e1dd93dfaeb676b0ecc070a16d366429710b0e8bd2c956fe07b886d65b3","isrc":"UKQNV2100162","name":"Get Dumb","registered_at":"2026-06-07T05:12:58Z","spotify_id":"3UZn0r01qyD1UqckgmIsll","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xded20e1dd93dfaeb676b0ecc070a16d366429710b0e8bd2c956fe07b886d65b3. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/3UZn0r01qyD1UqckgmIsll.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/3UZn0r01qyD1UqckgmIsll.