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 0x11281e7b222ebbe66c2f4c223d9e8c08e05e252dc360902445e084883035575f. 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/319f1d02-878d-49c2-a162-1c17ec606372.json and https://artists.proofprofile.net/proofs/artist/319f1d02-878d-49c2-a162-1c17ec606372.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc164d045963568c65e028c7996bb6565e1aa72014845f229bc94192704e90b99. 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/ZA56E2303031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc164d045963568c65e028c7996bb6565e1aa72014845f229bc94192704e90b99. 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/ZA56E2303031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc30fa705c07727400ef13abe7d1a579dc9dfe8cb10df2c03388bf7a38667847f. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/ZA56E2303032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c537de6b90ba426f69ca17645679df7fcf28b3ff0976be28c58ca23d70a9293. Chain 2 (Bitcoin): anchored in block 958086 (2026-07-15T02:55:47Z), 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/ZA56E2415998.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c537de6b90ba426f69ca17645679df7fcf28b3ff0976be28c58ca23d70a9293. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/ZA56E2415998.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e83a727ff544e2cd9493a9c0ad419fa0f0f14bdb69d59ab3b3dcaccf58803fe. Chain 2 (Bitcoin): anchored in block 958216 (2026-07-16T00:00:34Z), 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/ZA56E2416443.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4604ffdb76e6b4474da8a39bff0f39119adeba009fff699bb3ac469d21d6b8b6. Chain 2 (Bitcoin): anchored in block 957874 (2026-07-13T15:43:57Z), 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/ZA56E2416444.
Iza Mawala (feat. Dladla Mshunqisi & Goldmax)
Mali Ekseni (feat. Mashudu, Springle & TDK Macassette)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0881658ae026c44eaca48f153b5753e15d93d36c4d12d1ebc5ca8a7ff197ade. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/ZA56E2420231.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x733eb5253f4784c8aac367255f956590ffe2ce6e6ebe1403c2692ba1b71b789c. 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/ZA56E2419976.
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.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07272ce4882c9cff7617778966cae445ae36e47734ec41ef9802f0d2c7239a6e. 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/ZA56E2315070.
Delulu (feat. Tycoon, Marcus MC, Shakes & Les)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56be2a3b055c9b35fc9e3b6c30bb42e3873440412b8e39ccf6c72fec8a59b012. 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/ZA56E2306409.
Mjolo (feat. Tycoon, Marcus MC, Yumbs, Shakes & Les)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x160b8898b957fec4735cacd575208b06c976291ffd2affcf5ee3f107a9ca526d. 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/ZA56E2306173.
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.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14ce81203f3dee088bf0eccb53ae886cd86278eb18f10d8695b77a2b5b7743c2. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/ZAUM72202636.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x689644fef948759f0b2b6864685729772777116205e9a9a7e808a724aa4d40b5. 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/ZB1OS2400295.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa695dd65e726ed1696f689260d259cd846a7ee63f5b586a4dd706b58e3dce8d6. 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/ZB1OS2400296.