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 0xaafd45ac80425efc1d9d78efffec9b550ed09b3266075c9623cadd1a7b972421. 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/9504a949-1bb4-4a38-9a29-9e25169bd9be.json and https://artists.proofprofile.net/proofs/artist/9504a949-1bb4-4a38-9a29-9e25169bd9be.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 0x702918ce98eb9659c1e0a8d19789108ac7d25257a536ba7c8eb3ffaa11f21f50. 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/2Hh1pnTcE7UheukWykCA8v.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/2Hh1pnTcE7UheukWykCA8v.
Khuthuzile (feat. DJ Maphorisa, Pushkin & Kabelo Sings)
{"copyright_id":"0xe606ebf4019da3aa3fe59bac848fb9e723303244952b27281c0cfff2c46e10c4","isrc":"ZBN532400026","name":"Khuthuzile (feat. DJ Maphorisa, Pushkin & Kabelo Sings)","registered_at":"2026-06-04T10:05:59Z","spotify_id":"6v2F90xvuPxVUsx9d12T2b","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe606ebf4019da3aa3fe59bac848fb9e723303244952b27281c0cfff2c46e10c4. 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/6v2F90xvuPxVUsx9d12T2b.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/6v2F90xvuPxVUsx9d12T2b.
{"copyright_id":"0x8c6537b29e9fcde03d11de48c6ed21863bb5726f73514bcb745925e645f1f95f","isrc":"ZBN532400025","name":"Ka Soh (feat. DJ Maphorisa & Kammu Dee)","registered_at":"2026-06-08T05:49:40Z","spotify_id":"68kgTjAklGjlgIaCL2hT0z","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c6537b29e9fcde03d11de48c6ed21863bb5726f73514bcb745925e645f1f95f. 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/68kgTjAklGjlgIaCL2hT0z.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/68kgTjAklGjlgIaCL2hT0z.
Kwaze kwa mnandi (feat. DJ Maphorisa, CowBoii & Al Xapo)
{"copyright_id":"0x9c310cac4da7e921422f10c0ce175345d03c4e307165fa1a4c3e3664d6845e34","isrc":"ZBN532400024","name":"Kwaze kwa mnandi (feat. DJ Maphorisa, CowBoii & Al Xapo)","registered_at":"2026-06-04T12:42:55Z","spotify_id":"1dYBDwFGwFl2E9raTvh40K","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c310cac4da7e921422f10c0ce175345d03c4e307165fa1a4c3e3664d6845e34. 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/1dYBDwFGwFl2E9raTvh40K.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/1dYBDwFGwFl2E9raTvh40K.
{"copyright_id":"0x1c352400623ab60878f065efbe334fa584bc58d0d43fcb468ff02b55a600655e","isrc":"ZBN532400029","name":"Suka man (feat. Amu Classic & Kappie)","registered_at":"2026-06-04T12:49:39Z","spotify_id":"2fWFHIebW88QwrRZp6PzK7","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c352400623ab60878f065efbe334fa584bc58d0d43fcb468ff02b55a600655e. 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/2fWFHIebW88QwrRZp6PzK7.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/2fWFHIebW88QwrRZp6PzK7.
{"copyright_id":"0x19b65c7ea97e6303b186e098dc6091fffc9d3cc954ba8ca09069beeec1182149","isrc":"ZBN532400027","name":"Makubenjalo (feat. CowBoii)","registered_at":"2026-06-04T10:37:56Z","spotify_id":"4ZMZEbxWHomQ4rGytLlw5O","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19b65c7ea97e6303b186e098dc6091fffc9d3cc954ba8ca09069beeec1182149. 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/4ZMZEbxWHomQ4rGytLlw5O.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/4ZMZEbxWHomQ4rGytLlw5O.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef297011662cb7500608ef50745986490cc5b7e9ae7c3f5d3fd515e5144dcdf5. 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/0c10Ius9mmRPnv59vckT9U.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/0c10Ius9mmRPnv59vckT9U.
Sheshisa (feat. CowBoii, Lastborn Diroba & Felo Le Tee)
{"copyright_id":"0xfde30a3801b9e4f4787eec0ef95bd567f818e2913d6382e52d51bed838f19820","isrc":"ZBN532400028","name":"Sheshisa (feat. CowBoii, Lastborn Diroba & Felo Le Tee)","registered_at":"2026-06-05T18:15:34Z","spotify_id":"0wvRj1bq7R9sWfk0yL32wC","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfde30a3801b9e4f4787eec0ef95bd567f818e2913d6382e52d51bed838f19820. 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/0wvRj1bq7R9sWfk0yL32wC.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/0wvRj1bq7R9sWfk0yL32wC.
{"copyright_id":"0xc0dc4b91ed96a22adc8eddb04e66f89b43cb07b75871bd13a1fc0cab8e9e6436","isrc":"ZB79M2400019","name":"Cishe Nga Posta","registered_at":"2026-06-04T10:27:30Z","spotify_id":"32BO8PBNFVDWh2Fwzs4izZ","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0dc4b91ed96a22adc8eddb04e66f89b43cb07b75871bd13a1fc0cab8e9e6436. 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/32BO8PBNFVDWh2Fwzs4izZ.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/32BO8PBNFVDWh2Fwzs4izZ.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92eacdc221c94266283ae02abe34729f0e94348d2da6efc094945ec577fce443. 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/3hW76PGS3H5IQ6dwl8mNwk.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/3hW76PGS3H5IQ6dwl8mNwk.
{"copyright_id":"0xaa229a9cbb44a454375480c61aeb25dc79cf0d329557a8cfd6bc90a4b5f4d151","isrc":"ZB79M2400015","name":"Woza lana (feat. LeeMcKrazy)","registered_at":"2026-06-05T13:53:13Z","spotify_id":"2HyM4AFA5hGaQoB8Wefvmw","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa229a9cbb44a454375480c61aeb25dc79cf0d329557a8cfd6bc90a4b5f4d151. 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/2HyM4AFA5hGaQoB8Wefvmw.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/2HyM4AFA5hGaQoB8Wefvmw.
Why (feat. Cowboii, CarterIV, Mbuxx & Vyno Keys)
{"copyright_id":"0x44af56964745e42e513039ccc05924f2d25cb8c5e3573dd33a1ecb3cfd4b9ec5","isrc":"ZB79M2400016","name":"Why (feat. Cowboii, CarterIV, Mbuxx & Vyno Keys)","registered_at":"2026-06-05T13:52:46Z","spotify_id":"4kp2LmCdBkOOLQsAtxF1Sa","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44af56964745e42e513039ccc05924f2d25cb8c5e3573dd33a1ecb3cfd4b9ec5. 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/4kp2LmCdBkOOLQsAtxF1Sa.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/4kp2LmCdBkOOLQsAtxF1Sa.
{"copyright_id":"0xe85aa6c2c3b69a82a62adbb00e023323f5bebe69d709194e72e5dd5295684cfb","isrc":"ZB79M2400017","name":"Beke le Beke (feat. Bontle Smith)","registered_at":"2026-06-04T08:11:18Z","spotify_id":"5QlP6tgRlEtnMsolNWuK2T","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe85aa6c2c3b69a82a62adbb00e023323f5bebe69d709194e72e5dd5295684cfb. 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/5QlP6tgRlEtnMsolNWuK2T.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/5QlP6tgRlEtnMsolNWuK2T.
Ama Vithi Vithi (feat. Ray&Jay, Myztro & Xduppy)
{"copyright_id":"0x227fb2a10ed07114210f3d8a08e93faae0cd1cc4b555d92abcfb921c664358e3","isrc":"ZB1OS2400381","name":"Ama Vithi Vithi (feat. Ray&Jay, Myztro & Xduppy)","registered_at":"2026-06-05T21:48:04Z","spotify_id":"0PgeEZeGTw5P9GtPzICRAt","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x227fb2a10ed07114210f3d8a08e93faae0cd1cc4b555d92abcfb921c664358e3. 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/0PgeEZeGTw5P9GtPzICRAt.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/0PgeEZeGTw5P9GtPzICRAt.
Cheating Curve (feat. Scotts Maphuma, Leemckrazy & 2woshort)
{"copyright_id":"0xa7d917ed254f33bd496d03b27ff260744f1152446447d3b298d7fca9ceee6109","isrc":"ZB1OS2300240","name":"Cheating Curve (feat. Scotts Maphuma, Leemckrazy & 2woshort)","registered_at":"2026-06-24T15:12:42Z","spotify_id":"0Gq77Lx2rKLXIedUigNTs4","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7d917ed254f33bd496d03b27ff260744f1152446447d3b298d7fca9ceee6109. 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/0Gq77Lx2rKLXIedUigNTs4.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/0Gq77Lx2rKLXIedUigNTs4.
Idlozi (feat. Xduppy, Mellow & Sleazy, Yumbs, LeeMcKrazy, Scotts Maphuma & CowBoii)
{"copyright_id":"0x08b4dc8a94e7337c970d351f5c80a3889c55656c592e320bf58eb4949d348a31","isrc":"ZBN532400014","name":"Idlozi (feat. Xduppy, Mellow & Sleazy, Yumbs, LeeMcKrazy, Scotts Maphuma & CowBoii)","registered_at":"2026-06-18T23:26:40Z","spotify_id":"0XRPdCeo4OHk3dYjB7SLXW","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08b4dc8a94e7337c970d351f5c80a3889c55656c592e320bf58eb4949d348a31. 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/0XRPdCeo4OHk3dYjB7SLXW.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/0XRPdCeo4OHk3dYjB7SLXW.
{"copyright_id":"0xd7f16fdace5d2ff335975d7417a34fcecd790c6d63e34e1313e31bf6874fb70e","isrc":"ZACZ82300132","name":"Abafana Be Piano","registered_at":"2026-06-19T08:44:45Z","spotify_id":"4AUiKj4KYlC6JccvuFCzN7","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7f16fdace5d2ff335975d7417a34fcecd790c6d63e34e1313e31bf6874fb70e. 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/4AUiKj4KYlC6JccvuFCzN7.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/4AUiKj4KYlC6JccvuFCzN7.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe821a735911072b5d9c9e44a1f81af64e73ea41622780af36b5c466f460b2170. 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/49nSiHaWsp5FFONKmx43jp.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/49nSiHaWsp5FFONKmx43jp.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a4971ea7b667e07749dd772e5699509875e5d31f010c2923cbde9e222a97322. 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/6PjBJONVRF9abYR60vI21v.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/6PjBJONVRF9abYR60vI21v.
Ugezephi (feat. LeeMcKrazy, Scotts Maphuma, Matute)