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 0xb86ba14e9ec821ca9763607a81b889d2fe7a6620d121a6f251871a6cfce24f69. 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/9189f877-7cb2-457c-8242-3c65779db74b.json and https://artists.proofprofile.net/proofs/artist/9189f877-7cb2-457c-8242-3c65779db74b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
{"copyright_id":"0x354a4904edab66895a349d0d8e89b1f6f5a2c24f3fa210b4120042a2c6f0d4db","isrc":"USHM82298528","name":"Persephone (Kubiks Remix)","registered_at":"2026-06-27T01:55:14Z","spotify_id":"3cgWZxAkncEJCL3IH3kIZs","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 0x354a4904edab66895a349d0d8e89b1f6f5a2c24f3fa210b4120042a2c6f0d4db. 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/3cgWZxAkncEJCL3IH3kIZs.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/3cgWZxAkncEJCL3IH3kIZs.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb4a9f0fec86c204eb2cec255fd593c41f9f650b6b4280429f660fe4644cf8da. 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/7HR8EfLUoYPZEG74vwgyFU.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/7HR8EfLUoYPZEG74vwgyFU.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa21aa8cae4e862d5ab3a51baf044f2bda2a89140f7a8cec87b9e1b731d9c4af7. 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/28uTcwspERFw0er0lXYJAY.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/28uTcwspERFw0er0lXYJAY.
{"copyright_id":"0x41f630fe2ad4033e6631ec6f2fd1fcc1db64015654c1122195fe1d86fc75a35e","isrc":"GB2LD2320326","name":"Out Of My Head","registered_at":"2026-06-05T17:48:05Z","spotify_id":"1TVJyHKYbS05EOZPLEflio","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41f630fe2ad4033e6631ec6f2fd1fcc1db64015654c1122195fe1d86fc75a35e. 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/1TVJyHKYbS05EOZPLEflio.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/1TVJyHKYbS05EOZPLEflio.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89d466d13599449cd4c55ba254d4b00526ddeb3048a359035c7741db762c7236. 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/0WMaPf04OuvWoW5vmXBN7u.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/0WMaPf04OuvWoW5vmXBN7u.
{"copyright_id":"0xb955e2d070b2fd92052c50fd7743096530b6daf4b0baf1f9d67d6bfed1caff04","isrc":"NLCK41050706","name":"Seasons Sleep","registered_at":"2026-06-24T09:19:59Z","spotify_id":"55J7iSsFhgePpVS6S8Zvy6","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb955e2d070b2fd92052c50fd7743096530b6daf4b0baf1f9d67d6bfed1caff04. 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/55J7iSsFhgePpVS6S8Zvy6.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/55J7iSsFhgePpVS6S8Zvy6.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fcd58496e81b0c7d4afc1689651feeb8ca0c2ea742283df5f1bbad479983365. 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/1eooPemhzQqAORVRrTlX53.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/1eooPemhzQqAORVRrTlX53.
{"copyright_id":"0x100152bc3ab42426d3c06ef3b4136ed6e513d2896ea60b309753cf3d19e8f4e8","isrc":"NLCK41056201","name":"Distance Between Us","registered_at":"2026-06-11T17:37:33Z","spotify_id":"3svZ7tIcUnuEPjS9OkQPiF","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x100152bc3ab42426d3c06ef3b4136ed6e513d2896ea60b309753cf3d19e8f4e8. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/3svZ7tIcUnuEPjS9OkQPiF.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/3svZ7tIcUnuEPjS9OkQPiF.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1fa049ae6fadafba381a3bf23544b39e624f5eb20dc49d6b0ceff1793481fe8. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/0kyDAdByXoQEFEwHptjyM2.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/0kyDAdByXoQEFEwHptjyM2.
125th Street (Remastered) - Original Mix
Basic Operations – 4th Street Sound Click - Kubiks&lomax Remix
{"copyright_id":"0xc3325b917a77ca63b040c8bb447af05bd5d7ee49ccc7c0a4597a5a43ce84e2a4","isrc":"NLRD52413814","name":"In Transition","registered_at":"2026-06-05T17:48:48Z","spotify_id":"4SVGoxlIF4pHLJe6EyAAog","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3325b917a77ca63b040c8bb447af05bd5d7ee49ccc7c0a4597a5a43ce84e2a4. 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/4SVGoxlIF4pHLJe6EyAAog.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/4SVGoxlIF4pHLJe6EyAAog.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbd60348714b375f07734ef7e9375d277830e33681491d18b8a1bb0e7e12042d. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/4rys9mfp61wTbo3G0HprPV.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/4rys9mfp61wTbo3G0HprPV.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bf9803e410a1f9b802cb2a540faa76019265e91936d652ce8948c165cf0788c. 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/1jO5MOeIbsyhY9ZGlM3gWI.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/1jO5MOeIbsyhY9ZGlM3gWI.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb6183c40d3dd72b4faad847fcdd701672c9506d7c319e59e0b7690603a63dfb. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6bneW6wg48Q2MRYxrt8yPc.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/6bneW6wg48Q2MRYxrt8yPc.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbd60348714b375f07734ef7e9375d277830e33681491d18b8a1bb0e7e12042d. 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/0c0e4jFu2bX1PfRs6y8sTf.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/0c0e4jFu2bX1PfRs6y8sTf.
{"copyright_id":"0xdb6183c40d3dd72b4faad847fcdd701672c9506d7c319e59e0b7690603a63dfb","isrc":"GBRF52200016","name":"Always Been You","registered_at":"2026-06-18T15:40:41Z","spotify_id":"6mmhXWGDAa4N4svvsijG12","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb6183c40d3dd72b4faad847fcdd701672c9506d7c319e59e0b7690603a63dfb. 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/6mmhXWGDAa4N4svvsijG12.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/6mmhXWGDAa4N4svvsijG12.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50a040346d2f9f0769947acda067c022c463405268a38e669192ad0c6b7f49f8. 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/3x8DeYRqEMD4vWkrOepw8T.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/3x8DeYRqEMD4vWkrOepw8T.
{"copyright_id":"0x9aa1c327f2c580ee590bd9d80eaec20e417b0ff21f72df67398606b01adbe70e","isrc":"ATME81100201","name":"One of These Days","registered_at":"2026-06-21T23:34:45Z","spotify_id":"3c3x32R0zhnRcvLigTg4ys","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9aa1c327f2c580ee590bd9d80eaec20e417b0ff21f72df67398606b01adbe70e. 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/3c3x32R0zhnRcvLigTg4ys.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/3c3x32R0zhnRcvLigTg4ys.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x717daa3385cf394ce1131a638c24ae2a54247230c27cb16011176f990df883b2. 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/3sXtczmVcy9z6BG0MYCeW1.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/3sXtczmVcy9z6BG0MYCeW1.
{"copyright_id":"0x7ebbf7769759d19f45ad0c9d5ed897fad62e009a3c91b4e1329e10bc56736c2c","isrc":"UK4AJ1400009","name":"The Wolves - Lenzman Remix","registered_at":"2026-06-10T17:08:44Z","spotify_id":"6k85Jbv42NqWO2u4lflvdu","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ebbf7769759d19f45ad0c9d5ed897fad62e009a3c91b4e1329e10bc56736c2c. 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/6k85Jbv42NqWO2u4lflvdu.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/6k85Jbv42NqWO2u4lflvdu.
{"copyright_id":"0x121714fbaff0eb6594cf668444e49c6f0abdbd6ef84502d850dc302f839b7b9e","isrc":"GBQZQ0901130","name":"I Refuse","registered_at":"2026-06-05T05:00:17Z","spotify_id":"1BUCjHPEVMS9cpNUX9LGt0","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x121714fbaff0eb6594cf668444e49c6f0abdbd6ef84502d850dc302f839b7b9e. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1BUCjHPEVMS9cpNUX9LGt0.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/1BUCjHPEVMS9cpNUX9LGt0.
{"copyright_id":"0x67c02536ada197825fca17aba02a39198af9633823368119723e21150cedec22","isrc":"GBQZQ1000600","name":"By Your Side - Logistics Remix","registered_at":"2026-06-09T08:37:56Z","spotify_id":"78SnXyAIrlRew7w0hbRRzT","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67c02536ada197825fca17aba02a39198af9633823368119723e21150cedec22. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/78SnXyAIrlRew7w0hbRRzT.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/78SnXyAIrlRew7w0hbRRzT.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdffe75178917304a88487fa8a935e88264ae650055562a1d066cc3fb675db19e. 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/3UUCxfNySoyODOZEQ7sS1Q.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/3UUCxfNySoyODOZEQ7sS1Q.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d6cfde30839dedeab3b77078a489e23f03aaf52640dba1555cf816ec740c749. 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/5cSJ2FvIPWOYkmpBTSrj6q.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/5cSJ2FvIPWOYkmpBTSrj6q.
Spearhead Records Presents: Ten - Continuous Mix by BCee
Liquid V: Club Sessions, Vol. 2 (Mixed by Artificial Intelligence)
Movin On [Mixed] - DJ Marky & Bungle Remix
Big Bad & Heavy [Mixed] - Logistics Remix
It's a Jazz Thing [Mixed] - Utah Jazz Remix
{"copyright_id":"0x24d5b51bf0319115a967c267868fef2a28601955768a9decd703c258ddba0d90","isrc":"GBCEQ0600138","name":"Lost in Music [Mixed] - Remix","registered_at":"2026-06-21T22:29:17Z","spotify_id":"4Dwowjweh39nZLV9TxRSDI","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24d5b51bf0319115a967c267868fef2a28601955768a9decd703c258ddba0d90. 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/4Dwowjweh39nZLV9TxRSDI.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/4Dwowjweh39nZLV9TxRSDI.
Liquid V Club Sessions, Vol. 2 - Continuous Mix
Glitter Balls (Redeyes & Lenzman Remix) - Remastered
{"copyright_id":"0xb2c099de23b625578310549d8c29bde26e1dc3b907d5dd80c56def66a13c0d43","isrc":"NLCK41007650","name":"Easy On The Motion","registered_at":"2026-06-22T05:49:07Z","spotify_id":"0JAqcKKXF92CoYzCMswQKk","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2c099de23b625578310549d8c29bde26e1dc3b907d5dd80c56def66a13c0d43. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/0JAqcKKXF92CoYzCMswQKk.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/0JAqcKKXF92CoYzCMswQKk.