1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 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 0x37668d0a7727217288c0e82cb133f3bee95ecc029f0fecd5fb112dd57534f443. 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/94ac1323-8a8b-41b8-8436-aa2cc68456ee.json and https://artists.proofprofile.net/proofs/artist/94ac1323-8a8b-41b8-8436-aa2cc68456ee.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Bana Ba Utlwa Bo Ntate (feat. Nkosana & Mojeremane)
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4318ea91ece38b25e5671b71b33375f45971fc5d5d1942aeace64eadba54bdba. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ZAA160500402.
Tlong Ho Jesu (feat. Nkosana & Mojeremane)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfaddb9f9e9fa2ce6af2366494d044c168d3ba57e091e3e80f5dc6575128a84b0. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ZAA160500404.
Shibolabola (feat. Nkosana & Mojeremane)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4384520f9c184c3c78c74a3143a262265ca338925c65920b8de719f8e277ac62. Chain 2 (Bitcoin): anchored in block 958612 (2026-07-18T21:29:37Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ZAA160500406.
Thwala Lo M' Thwalo (feat. Mojeremane & Nkosana)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2825d2abaea008f840269a7850b3cbd7703a5d505dba2600a70d1acc7194c3f9. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T01:42:30Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ZAA160600878.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43590118fb78e948ca5c201c0ea91032665b3aea73787a3fa600681f84f0f003. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ZAA161000441.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x800dc2b498363a930412f38ecfdbf07eedd0cf7c27d4e10a3b1cfc2852fc9df8. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ZAA161000442.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b7bc8a3987ca8807d37ccc1a65c9a5d6cf1614b7d2de191bf19d236331c1fca. Chain 2 (Bitcoin): anchored in block 958991 (2026-07-21T12:00:53Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ZAA161000443.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf33e33eab75d527062ecaee4e0061dbf203cf547814f591241e1e21769ffa9a1. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ZAA161000444.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fc33d098f11dc2407c92334d8b16a40d83713d0fa9b1da64ac02ce55bbd9529. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ZAA160802079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf30ecfcf9b55e3483428b7d5e54a1d3f36cd7b5cbfef51084b282bbc2ea85b88. Chain 2 (Bitcoin): anchored in block 957735 (2026-07-12T17:47:43Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ZAA160802080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x291b50dbea3bacdf1a4a3fb509f4c4e28fe95e430de25dda0d810580660db0c0. Chain 2 (Bitcoin): anchored in block 957741 (2026-07-12T18:30:59Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ZAA160802071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x687a92cb05b4bfebd4d055ddab4a7a018e01788631b34b9af704e62ebc86ca46. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ZAA160802072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78f42205494293e46dedbf235329dd038a45b9a8425e8c8fe4e0915328038b7d. Chain 2 (Bitcoin): anchored in block 957741 (2026-07-12T18:30:59Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ZAA160802073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x280669f2d622602834c13bbb3e4a5744c53ef78694ab651223c375db83efc8c3. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ZAA160802076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ae8a568a708d5af5e07edb7c4a4154660539b2502ffdc1ba3d8912e436d8df0. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ZA56E1405622.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17eff79e2deadb65797d26f3459ebe02e3cb90d193ae70bf382a9ec271733cb0. Chain 2 (Bitcoin): anchored in block 958812 (2026-07-20T05:50:54Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ZAA161000003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53e78df4fdf654e91e67f39dd1084912492c2223021d7abdea27516c8e10ecbd. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ZAA161200002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2218143fba658f216e12ca73cd662b267dc96d214bfce7bd6fbdc24552b95ba0. Chain 2 (Bitcoin): anchored in block 958711 (2026-07-19T09:26:32Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ZAA161200006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2c11e06095d4d2c2f2ad5a04ff812b05fd58f1b93e257ecdd826c981b5e709a. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ZAA161200240.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97457a0524fbe2b0175973b0ac9c1c9015f7da064304cf207473896b65c944f9. Chain 2 (Bitcoin): anchored in block 958346 (2026-07-17T03:56:56Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ZAA161200241.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9456952e480731211f90031f8c11635e722cef417bc2181addd096aa8f3ff98. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T03:03:40Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ZAA161200242.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51520627183442f688d45dfbd0d23039b4319cf8fcd6aaf85b5a225572a3cbd1. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ZAA161200245.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ce45c11024c53e77f4dc60d370c7a4d7c789bb2a7955cf9b45397ad05715a1b. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ZAA161200247.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43590118fb78e948ca5c201c0ea91032665b3aea73787a3fa600681f84f0f003. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-15T23:25:50Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ZAA161000441.