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 0xd5e3c038173f8d31c9e5b3d59dd9a133504f6593d6a9a68cf25405db3db1c6d7. 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/ccbadfa5-6bea-47e5-9d63-e6b225d11873.json and https://artists.proofprofile.net/proofs/artist/ccbadfa5-6bea-47e5-9d63-e6b225d11873.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Kwalula (feat. Soa mattrix, Happy Jazzman)
Ngempela (feat. Kabza De Small & Murumba Pitch)
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 0x14ee026807d26733f56bfb0e3a4a7012ef9d7b5ab94f268a150707805270608e. 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/ZA56E2416936.
Linda (feat. Soa Mattrix, Tycoon & Tumisho)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7e5d2f8a62f198a5734add2b4aa324dcd8b8ed31ece28eaeb22a41f65391c58. 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/ZA56E2420140.
Kwazulu (feat. Murumba Pitch & Soa Mattrix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4cc15c728aa0f845518f591e7e45aa531b7dc72c2ab312312054bd415e84448. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/ZA56E2420141.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01cc62f75cab60f204852d69ac865ee0e6a4dbf6fce610f81b71b7134ae1262f. 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/ZA56E2420142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d6350cebe72a49e01315d4cffea608fc7b014e0416dc2b475513c56d6195bd9. 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/ZA56E2420143.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14ee026807d26733f56bfb0e3a4a7012ef9d7b5ab94f268a150707805270608e. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/ZA56E2416936.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x472fc7796fd0e1c25421e9b7152d37e3d27edeca1dceaa9b6e53416f4e0f7692. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/ZA56E2420144.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87990d4ea0dfe54edbf41afd19c2913078b5a80f26b65d84a52b1f5be7f550aa. 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/ZA56E2420145.
Ke Tlo Fitlha (feat. Kamoh Xaba, Tycoon & Happy Jazzman)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37c47b058acc4fca6501d2330feafe47034f0924851d2d1cda7d736a6db6dc87. 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/ZA56E2420146.
uKuThanda Wena (feat. Bassie, Mashudu & Da Muziqal Chef)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x891601ca8499947e33e80c1c3a741e971d6e792bbc8592d53567b0d926aa1a0b. 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/ZB1OS2200110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36f249158793e45c1aec550850a8ca52d50b0ee01c71b531c30cefa16b6f0f72. 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/ZA41S2101547.
Indoda Enemali (feat. Muziqal Tone, Djy Jaivane & Mashudu)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85a353ff6fa07cc53f2c04965de442bb509281e605b827b5c95ac76e1b62cefd. 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/ZA41S2101561.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fce329bc23efb9adb81d6f8ba11a1f094714b39b059e288eeed9c97c1dea099. Chain 2 (Bitcoin): anchored in block 957048 (2026-07-07T14:18:56Z), 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/ZA41S2101545.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34da0c5d054fba3a89218fae5e7f8c1d86922d16961199a657c7880ff7441771. 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/ZA60J2300125.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45bb0e2f29a35300e0a05bcc25e46aef0a1fce3fc55ff44c1fc3ef5584f76e39. 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/ZACZ82300122.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cfd9505367d28e2eac37066643f2f2c80d9a90f2e1ef1d5c2e278d08c260fa2. 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/ZACZ82300126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe5ebdb5b659c8a7b52cdb87f41d78f7b2c8bfdb078b32e573721cbc34dfc0f5. Chain 2 (Bitcoin): anchored in block 957052 (2026-07-07T14:50:41Z), 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/ZACZ82300131.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d1b72a33206177eb232be687e02a82cb15a40af230e889e83edc1e1ede6c6a2. Chain 2 (Bitcoin): anchored in block 957052 (2026-07-07T14:50:41Z), 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/ZBWBV2300002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04773d58f02220e9c73de1b355038176c562370aa6e2e4edd80621227ac18f46. 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/QZDA72246725.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74a0ac173563f880afa8dcad21d95c82cb6b6e673688dc7964dae52b25ab9616. 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/ZAC012300747.
Ibutho Lomculo (feat. Major League DJz, TmanXpress, Mashudu)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0fc6d1d70e647dd30956e038e0009d6a5fb24ba0c23a4b49db06015fb075f47. 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/ZA56E2315208.
Bambi Sandla (feat. Muziqal Tone & Mashudu)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf86dde2421dc62cc8b96e9335b0d33774908318d8b25d885a4900e8db0e985f5. 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/ZA41S2203826.
Eloyi (feat. Mashudu, DJ Jaivane & Sinny Man'Que)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a8158bb673d1fa4c428fd1b24cc334d6dc4a73ba7d5c2cf50a9535ea4c6bcca. 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/ZA41S2102445.