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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd8fa32620c530761778ec5da00ee67c27f0b8a8b6cb81d7f857afe65e40bdc7. 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/5d73d51d-132b-44b4-943a-8baeaec83ca2.json and https://artists.proofprofile.net/proofs/artist/5d73d51d-132b-44b4-943a-8baeaec83ca2.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04fed4ed89b48f9c8b949875185e5522b6479869ead44ecc59eac04e80fc6a35. 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/DGA052226192.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ae8f3ef5a5ac66f559b16d8d87cae0aff9d8df240f3737f67a385eceb1d2633. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/DGA072200687.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b7784706b6ae4e390ae5badd304feb76574a21dc7469445bd5c53321e4da61d. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/FRX762321540.
Bayazi (feat. Mellow & Sleazy, Nobantu Vilakazi, Cowboii)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d9a37f432514f1d562609a19bb7504a01d27901ab57cbeeb2a4a457fd8a35a7. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/ZA56E2314969.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ab08c5ed0151ef935b2f75dcb9a6847ac3cd2464596e0e0be924898cd32f71f. Chain 2 (Bitcoin): anchored in block 960164 (2026-07-29T23:23:05Z), 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/ZA56E2315411.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc958ad19c839ddadc8fae7dae9c03c3dbdeb438454f05a2b6c60998a362a074c. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/ZA56E2315412.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16ef1da29acb81f7d4e2c7853dc0c1dcc9d3dffc7ee83b7fc8d7f2322301714a. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/ZA56E2315413.
You Are The One (feat. Yedda, Senzo Africa, Zwayetoven)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa68990dcc65d37ce8d849f641a0a4c67cb6c454aff34803a7f21afda4e03c80b. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/ZA56E2315414.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c202ee0474156e267b0064f5cfe9f056d4f26c1a2af8592affa392dbf6b9052. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/ZA56E2315415.
Sthandwa (feat. Thulani Way, Makhekhe Junior, Rufaro Rcrds, K-Zaka)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5bb759162e359b7cded03c054be9032a41bbd4f8c909a3fd8fe3b8d0e045f71. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/ZA56E2315416.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf505111c3c0208924b041fd8420aae1cb0170bfb774bc99f9cf81574a90aa40. Chain 2 (Bitcoin): anchored in block 960250 (2026-07-30T11:13:28Z), 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/ZA56E2315417.
Umsebenzi (feat. Scotts Maphuma, Cowboii)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f265a542b8ab1121723a79b91d4577b604fc0c788048dd5f5658cef20b51951. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/ZA56E2315418.
Presser Mgani (feat. TitoM, Tman Xpress)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f35be69f64e2d306407c43dd1aa0cc9435dc76eb7a14e02b34915774e9ea9ad. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), 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/ZA56E2315419.
Askies I'm Sorry (feat. Kabelo Sings, TitoM)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d69247d9f571900d5862583814e8c266714c0787e9300715a7a0cfaf788868c. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/ZA56E2315420.
Emcimbini (feat. Mellow & Sleazy, LeeMcKrazy, Scotts Maphuma, Cowboii)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee9cf7fdbd5b895016536a38818022d01a70f9e1419c978fa74b784fa902a26f. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/ZA56E2315421.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46bcdbc92e8f690fa6f5f124ece1cfccf9c36fee00451e1054c1a58f50a36830. Chain 2 (Bitcoin): anchored in block 960340 (2026-07-31T03:15:04Z), 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/ZA56E2315422.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfacb4ea70eb7b99b64d4a03abe548d775d5e828915c92c6f4bc8abdd04de21d. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/ZA56E2315423.
Ithuba (feat. Kabelo Sings, Shaun Musiq & Ftears)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb364c6d8725f05bb30ac070c2fa452bfcd5eacaeaae34fc6c653f37ad22b905b. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/ZA56E2315424.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01a30a1fcc4ba41886b13e5114ca3fb2977ef577ad012c808e8eec20e5a503e3. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/ZA56E2315425.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab0a46b248ca07f1f2df410ec854197337bd37ed712408b965c46d464f2bc8cb. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/ZA56E2315426.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x067cb4bb4db7f9a581d1c2d6fce5671bf7ac274bad6bc49bac4b098329b6ebc9. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/ZA56E2419809.
As’desheni (feat. Xduppy, 2woshort, Woza Sjax & K.C Driller)
Incwadi Engafundeki (feat. LordJazz RSA)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94c4304d97be25e164a89257460b01868d32083428a35147b8e6f9c8d2a110ab. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/ZAA012300327.
Aklaleki (feat. SjavasDaDeejay, Lington)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0b5ba5e641179ae180aca00961eea99d37d562ce1e066f01b94b0e32575784d. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/ZA56E2315396.
Weshe (feat. SjavasDaDeejay, LeeMcKrazy and J & S Projects)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd84b30cf17e90d52d1ab5386f8c4e16133cfb07c567154fb5b35dad5228ffe0d. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/ZA41S2101566.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a740626d9f11e0d7566eb042173cc773e11e6c3ccaa54b1cf7d1d31be21e9a7. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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/ZA6EE2000066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x748228aa15df6e7a42ac58fd0e67762d88415a7efa64fdd692712ba8dc15bddb. Chain 2 (Bitcoin): anchored in block 960166 (2026-07-29T23:39:29Z), 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/ZA6EE2000060.
Ebasini (feat. Tman Xpress, Visca, Ceeka RSA, Sjavasdadeejay & Al Xapo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e1974db6c85631b73090bc7c4ed23a50d26a6c0808d6836179e36475caa01cd. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/ZBOOX2400014.
Iqolo Lam (feat. Mellow & Sleazy, SjavasDaDeejay, TitoM, LK Deepstix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f3ea9362df4736066cd33315057a78a02bab8bd668458c10d604bbb983534b0. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/ZA56E2303352.
Amasango (feat. Sjavas Da Deejay & TitoM)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd003008cb8ff15cc55660f797ad23e33c70e89aca69b538355a10cae7c19855. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/ZAA012200520.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ab3a532385636adc49ed77d78eddcaab37817f1817d4ef8150ca8c7ac3e05b0. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/ZBYRE2400004.
Mvuleleni (feat. TmanXpress & LK Deepstix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf33abd8b4b3704e779c0a527cc03f9b29dc9dd1be4fb6643452c62c0ab0e6662. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/ZBN532300007.
Maybabo (feat. TitoM & Sjavas Da Deejay)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf3daac4287e6371fa9a19917553b61a06cb03eb72f86b13d4719959e17b013f. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/ZB79M2300007.
Paper - Tumelo_za & SjavasDaDeejay Remix
Paper (Tumelo_za & SjavasDaDeejay Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b61198127a18212e2f179d5290d7a603f9ed2912a32baa2e92d8b8ca8d93402. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/CAUM72400082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacba15b7b50715e31cff1cd88fcb372a31e23286bf9e68a8c58433cf683b2993. Chain 2 (Bitcoin): anchored in block 960121 (2026-07-29T15:22:21Z), 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/FR2X42452112.
Ibutho Lomculo (feat. Major League DJz, TmanXpress, Mashudu)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0fc6d1d70e647dd30956e038e0009d6a5fb24ba0c23a4b49db06015fb075f47. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/ZA56E2315208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8eecd6dbd1de21f73c520fa60155dce9fa230ddf7c7c39366e7fc675f14986d1. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/UKXN22367462.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf203e36ba569b7324473f1654b41212f3d1b1129ac1c638994e45f75a89d3f24. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/ZAA012300146.