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 0x6b207a9b2c4cb3a1ae0334e050182c0af3523b0df736aaedd0099dbf498684c3. 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/9bbc5357-a4f1-4a7b-ab01-4b798a8169fd.json and https://artists.proofprofile.net/proofs/artist/9bbc5357-a4f1-4a7b-ab01-4b798a8169fd.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
{"copyright_id":"0xae15b72e63152b9c577466ce6434310d27e00b47b65aee461ad19dc3d8ea4d34","isrc":"SE6HN1900809","name":"Born Trappy HB Freestyle","registered_at":"2026-06-07T02:23:07Z","spotify_id":"2o4aQV9LbhuEGEurcvyw8Y","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 0xae15b72e63152b9c577466ce6434310d27e00b47b65aee461ad19dc3d8ea4d34. 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/2o4aQV9LbhuEGEurcvyw8Y.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/2o4aQV9LbhuEGEurcvyw8Y.
{"copyright_id":"0xe4958f543b57fd6ec149fcac595d486b2813e6fb7726db842de33ba61e8e8f1d","isrc":"GXD7V2207461","name":"SeeJay100 - HB Freestyle (Season 6)","registered_at":"2026-06-23T12:10:28Z","spotify_id":"5Ys46srUnRb7nBZORvPMz8","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4958f543b57fd6ec149fcac595d486b2813e6fb7726db842de33ba61e8e8f1d. 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/5Ys46srUnRb7nBZORvPMz8.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/5Ys46srUnRb7nBZORvPMz8.
Sho Shallow - HB Freestyle (Season 6) Pt.2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2304814cabf0494575cf075a6f0528f03314ebe9e57727936c326535f4de21be. 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/71JYJZmpB50l1wtpvObIfu.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/71JYJZmpB50l1wtpvObIfu.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf25fd9e3de286785fc679d6918979807f921a04e18e756c17193ce538c424b5f. 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/677y6IdRNir0THoRr6Xon3.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/677y6IdRNir0THoRr6Xon3.
{"copyright_id":"0x040e31ef34c01fab914acb55f858fcd125f05f2d5a21920dcb1738d6271befbf","isrc":"SE5BU2499512","name":"Big Watch - HB Freestyle (Season 6)","registered_at":"2026-06-27T11:04:51Z","spotify_id":"68aqClHQ4dapEdMrABYuzD","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x040e31ef34c01fab914acb55f858fcd125f05f2d5a21920dcb1738d6271befbf. 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/68aqClHQ4dapEdMrABYuzD.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/68aqClHQ4dapEdMrABYuzD.
Notorious Loon - HB Freestyle (Season 6), Pt. 2
Notorious Loon - HB Freestyle (Season 6)
{"copyright_id":"0xb067b80ba6dc8510ca61905efdf6f92bc3c5e0ee709e0a757e6456822f257387","isrc":"SE5BU2476968","name":"SINN6R - Joey Clipstar Freestyle","registered_at":"2026-06-05T06:04:18Z","spotify_id":"487Qm7ROFDfCfmQcFAP79P","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb067b80ba6dc8510ca61905efdf6f92bc3c5e0ee709e0a757e6456822f257387. 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/487Qm7ROFDfCfmQcFAP79P.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/487Qm7ROFDfCfmQcFAP79P.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4176b478736c4808a48a91a622601a122cc41be02caed2e6f3517e0fe7932975. 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/2LzuVZv3VewQdFpY2u62pD.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/2LzuVZv3VewQdFpY2u62pD.
{"copyright_id":"0x61bce75516f81a11d722b74ed011f0e0df82c94666aa0e7ef207c7567e8fff0a","isrc":"FRX452217027","name":"HB Freestyle (Season 4) , Pt. 2","registered_at":"2026-06-27T11:04:05Z","spotify_id":"70eBE7i8DwGlxxjWbrormI","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61bce75516f81a11d722b74ed011f0e0df82c94666aa0e7ef207c7567e8fff0a. 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/70eBE7i8DwGlxxjWbrormI.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/70eBE7i8DwGlxxjWbrormI.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9160bfa1e735789354f6be79bc79c4c2c9224c6a0c8c1261d46eaf49297a606a. 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/0k8TSEF7ctLBDewlmF0ScW.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/0k8TSEF7ctLBDewlmF0ScW.
#TPL Omizz x JoJo HB Freestyle (Season 2)
#TPL Omizz x JoJo HB Freestyle - Season 2
{"copyright_id":"0xc3d691006bda9a14ab4563f949820c1a2208d105f8b9e6ee57eef77a840fbc8e","isrc":"SE6SA2017935","name":"#TPL Omizz x JoJo HB Freestyle - Season 2","registered_at":"2026-06-04T16:35:31Z","spotify_id":"6Aw1ZKOBnlfhszbea3ejTD","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3d691006bda9a14ab4563f949820c1a2208d105f8b9e6ee57eef77a840fbc8e. 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/6Aw1ZKOBnlfhszbea3ejTD.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/6Aw1ZKOBnlfhszbea3ejTD.
{"copyright_id":"0xa243652fd3aeeb57d9da294dbd450ae57ab371bcedc549c9ce132669423f5d93","isrc":"QZES81965312","name":"V9 HB Freestyle","registered_at":"2026-06-22T06:24:50Z","spotify_id":"7FeR3Gq3yYlQVWXOdohnUy","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa243652fd3aeeb57d9da294dbd450ae57ab371bcedc549c9ce132669423f5d93. 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/7FeR3Gq3yYlQVWXOdohnUy.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/7FeR3Gq3yYlQVWXOdohnUy.
{"copyright_id":"0xacdfead37ee7e105b3543259013f4d1487fcdf4b93399968043d691ce3f36411","isrc":"FRX282120587","name":"Zino - HB Freestyle - Season 3","registered_at":"2026-06-07T08:43:08Z","spotify_id":"4kBOrOJBqFiIg4oZdN6dua","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacdfead37ee7e105b3543259013f4d1487fcdf4b93399968043d691ce3f36411. 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/4kBOrOJBqFiIg4oZdN6dua.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/4kBOrOJBqFiIg4oZdN6dua.
{"copyright_id":"0x62cc7b5dee05b7f3cbefc69457e419bc7e74cf9251e04454fc79e18e195ced44","isrc":"QZDA51911973","name":"Am & Skengdo HB Freestyle","registered_at":"2026-06-10T20:04:55Z","spotify_id":"3unC3aBX1NDb783OfsFjYm","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62cc7b5dee05b7f3cbefc69457e419bc7e74cf9251e04454fc79e18e195ced44. 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/3unC3aBX1NDb783OfsFjYm.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/3unC3aBX1NDb783OfsFjYm.
{"copyright_id":"0xd80fb614923158ea23375f66608fd96b3bcb3ec725023dccfc79f0cbce564c8d","isrc":"SE6A91991719","name":"Woosh HB Freestyle","registered_at":"2026-06-10T06:11:45Z","spotify_id":"26mF0bcuMkIgMz6RP22WPH","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd80fb614923158ea23375f66608fd96b3bcb3ec725023dccfc79f0cbce564c8d. 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/26mF0bcuMkIgMz6RP22WPH.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/26mF0bcuMkIgMz6RP22WPH.
{"copyright_id":"0xc36afd1f376dec56b2c2af50ca38ab2a14f894bbd48fbda77a4c93d0293cf32d","isrc":"QZDA81937583","name":"HB Freestyle","registered_at":"2026-06-27T07:20:53Z","spotify_id":"2j19jLHInaXjRCtGGgriMe","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc36afd1f376dec56b2c2af50ca38ab2a14f894bbd48fbda77a4c93d0293cf32d. 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/2j19jLHInaXjRCtGGgriMe.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/2j19jLHInaXjRCtGGgriMe.
{"copyright_id":"0xc0940dfb3234895c10cd3fad86d8898366529a94e6b01df0fbaeea8efc12b0f7","isrc":"SE5BU1975106","name":"Pee Man HB Freestyle","registered_at":"2026-06-08T04:48:51Z","spotify_id":"0oZijTCfu3Mn3Yp7qZjsqi","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0940dfb3234895c10cd3fad86d8898366529a94e6b01df0fbaeea8efc12b0f7. 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/0oZijTCfu3Mn3Yp7qZjsqi.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/0oZijTCfu3Mn3Yp7qZjsqi.
RA & Stinx Back to Back HB Freestyle (Season 3)
{"copyright_id":"0x694407fab058becbe85995823a4b8a10cf2c5955a3ba36136db83f490c75753e","isrc":"FRX452121801","name":"RA & Stinx Back to Back HB Freestyle (Season 3)","registered_at":"2026-06-27T11:04:07Z","spotify_id":"5Hbeb57ptwMEvvJiU7Lehm","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x694407fab058becbe85995823a4b8a10cf2c5955a3ba36136db83f490c75753e. 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/5Hbeb57ptwMEvvJiU7Lehm.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/5Hbeb57ptwMEvvJiU7Lehm.
AbzSav x Workrate HB Freestyle - Season 2
AbzSav x Workrate HB Freestyle (Season 2)
{"copyright_id":"0x196ba83520fae1b6e961cc3fb846bb6b6ad5e7f48567c2f37d246cd9027ff97b","isrc":"SE6A92045981","name":"AbzSav x Workrate HB Freestyle - Season 2","registered_at":"2026-06-21T07:42:12Z","spotify_id":"1z9Ju28BYQCZVjo99lKIip","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x196ba83520fae1b6e961cc3fb846bb6b6ad5e7f48567c2f37d246cd9027ff97b. 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/1z9Ju28BYQCZVjo99lKIip.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/1z9Ju28BYQCZVjo99lKIip.
{"copyright_id":"0x57c7f913eac9b89aee6537af8c8b17eb265e8c4c647eb4c1b024112d127033fc","isrc":"FRX282177042","name":"TE dness - HB Freestyle - Season 3","registered_at":"2026-06-05T09:27:22Z","spotify_id":"1KmZLFJbXVIzPmkbCxC2PY","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57c7f913eac9b89aee6537af8c8b17eb265e8c4c647eb4c1b024112d127033fc. 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/1KmZLFJbXVIzPmkbCxC2PY.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/1KmZLFJbXVIzPmkbCxC2PY.
{"copyright_id":"0xf4e787fd3623acbdc0fafa969d4cfdec71595c828264f81debd3a244ff73fd55","isrc":"QZ4JJ1906631","name":"S1 HB Freestyle","registered_at":"2026-06-27T11:17:36Z","spotify_id":"2x6b6w9cQjGFV95TPpJ7o6","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4e787fd3623acbdc0fafa969d4cfdec71595c828264f81debd3a244ff73fd55. 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/2x6b6w9cQjGFV95TPpJ7o6.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/2x6b6w9cQjGFV95TPpJ7o6.
{"copyright_id":"0x38e609f52626e2b94eb42b1aa68190f097ca985fccdbab357a8dcbce6ae6fd4b","isrc":"FRX282175894","name":"Blocka - HB Freestyle - Season 3","registered_at":"2026-06-07T21:27:19Z","spotify_id":"1d19f14IZ3eMVUKWiGWHPQ","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38e609f52626e2b94eb42b1aa68190f097ca985fccdbab357a8dcbce6ae6fd4b. 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/1d19f14IZ3eMVUKWiGWHPQ.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/1d19f14IZ3eMVUKWiGWHPQ.
{"copyright_id":"0x726aeb8b6f9fcbda06daf01c12b7a4ee8ae984d014ff124ee54e0dfc307fe34c","isrc":"FRX282216249","name":"Thrife - HB Freestyle (Season 4)","registered_at":"2026-06-08T22:22:53Z","spotify_id":"1WvOpIbNgKcJkyTTr3qfOf","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x726aeb8b6f9fcbda06daf01c12b7a4ee8ae984d014ff124ee54e0dfc307fe34c. 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/1WvOpIbNgKcJkyTTr3qfOf.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/1WvOpIbNgKcJkyTTr3qfOf.