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 0xe290d1f6ed7cad6c0de74f3090bf2e6ba922a2f1b02fc64284fdc30f5425f97c. 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/1953da5d-1326-4550-9533-de4df55008ee.json and https://artists.proofprofile.net/proofs/artist/1953da5d-1326-4550-9533-de4df55008ee.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Eloyi (feat. Hulumeni, Khanyisa and Dali)
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 0xfb967041c55d8ca089c463abfadbdc7072b6c595d07c31cf1da8a7c8d89bb596. Chain 2 (Bitcoin): anchored in block 957888 (2026-07-13T17:43:59Z), 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/ZA56E2200086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe063a93d4f91e1493cf8c1382172500c82804287e40c32f71dfd8058f0c0ec02. Chain 2 (Bitcoin): anchored in block 958142 (2026-07-15T10:09:30Z), 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/ZA56E2419919.
Khululeka (feat. Sundile, Essa Kay & Tshepo Keyz)
D.O.P 2.0 (feat. Tsiki XII, Marcus MC & Jazzidisciples)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0cf5072c74f7977253611c10c77660edf412d7f38d4b4af1a19d04ddc05f7c22. 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/ZAA012200255.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8beb8041ed4f34e97c26c1e0aab1a6ab66534ac70b9a6bfcf888ec9014e32d4c. 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/ZAP5S2300010.
Mexican Bounce (feat. LeeMcKrazy, Tshepo Keyz, Marcus MC, malume.hypeman, RIVALZ)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31f935b94901f0d4431044c7ecd5ec6b0a8f1bdc38c01ee212140f3a48662527. 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/ZA56E2416020.
Delulu (feat. Tycoon, Marcus MC, Shakes & Les)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56be2a3b055c9b35fc9e3b6c30bb42e3873440412b8e39ccf6c72fec8a59b012. 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/ZA56E2306409.
Mjolo (feat. Tycoon, Marcus MC, Yumbs, Shakes & Les)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x160b8898b957fec4735cacd575208b06c976291ffd2affcf5ee3f107a9ca526d. 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/ZA56E2306173.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f61524d9de7190a90c31ed754df1103d3346651537eb007d61039138e32b7b3. 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/ZA56E2201090.
Gyjima (feat. Sir Trill, Marcus MC, Tycoon, Ben Da Prince)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e7ef1e6e3861048f597163ad50f904a26e3a34d26b160ef0a47d12e42f1654e. 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/ZA56E2201091.
Xoki (feat. Sino Msolo, Tycoon, Marcus MC)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe110bce3afa735b3433afd1d9df09b350865f04a5ece1c24fa600d82524a1c28. 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/ZA56E2201094.
Mali Yami (feat. Lady Du, Marcus MC, Tycoon)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc42901910d6556a023ee420eb06ce50a1106b3eeaa71d12a57f7ed2261493f6e. Chain 2 (Bitcoin): anchored in block 960317 (2026-07-30T21:35:24Z), 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/ZA56E2201092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bae4138a108862c8c48a1e45a5288cf492b495f82623247eb42201fed6ff8fe. Chain 2 (Bitcoin): anchored in block 960509 (2026-08-01T04:30:37Z), 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/ZA56E2102425.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f9e09481ae34cbb4ec9c54136e09b72e85c0580efcbefa1c0bdb9b16bcdf2e5. 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/ZA56E2101768.
Ndiyakhala (feat. Marcus MC and Tsiki XII)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb000e31e1bce25f98f7f9040f3929cc488dfa2713ebe881be20e2123071b0bb6. 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/ZA56E2102098.
Mina Nawe (feat. Mr JazziQ and Marcus MC)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2c18a36c9850196ece72a612860fabbf348167ad85859893dc70115a16bc3bc. 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/ZA56E2102099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f9e09481ae34cbb4ec9c54136e09b72e85c0580efcbefa1c0bdb9b16bcdf2e5. 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/ZA56E2101768.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac5313f27e7d710d0883745acd7ff83695c00631a149b75146fbcc21fb6ebd86. 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/USA2P2450095.
Inhliziyo (feat. Leandra.Vert, Marcus MC)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cb0be0eaff127db23a13d25fef38731d23c440b6e1a7c1e714518b5a8fba3b7. 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/ZA56E2415932.
Amapiano Mix 2024 (Saxophone Edition) (DJ Mix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa183c1d32bf687e950ee999307b67c6dfd10f44f936e250e5b5c577b40500c8c. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/USA2P2468823.