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 0x08d841e67c2558126f36c170bfe7ab6ce29d0d78c5edc4b5be3e8162b328dc13. 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/ca655376-2e2c-4781-8a6b-f8fbd8ccf7d4.json and https://artists.proofprofile.net/proofs/artist/ca655376-2e2c-4781-8a6b-f8fbd8ccf7d4.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Acrimony (feat. NATASHA MD, K Motion, Sibusiso makhoba)
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 0x2ad596bf22dd2f128e7d5412127b3aa13331cfb3c06b7c0894942d0da3569cb8. 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/ZAAK22300035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c960ec16aea8da1792a10d2c6c7421e2b6a41c92f4648f118c37578a3c2d5a4. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/ZAAK22302019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x049c45645278f7b18484447748f9f60dd0ccdd61bb3eeaedbfe58560dde3e5c1. 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/ZAC012401433.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5195eef346b06e47ee0921c2d712bb6b42a08f4d10f4ae1992affc7107c73cb2. 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/ZA56E2419685.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7103f80abd003870ad13b0856400de5412412a63fafb5469ca91ce0aa1ec3a33. 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/ZAUM72400371.
iNyakanyaka (feat. NATASHA MD) - Eltonnick Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74752936923ec423da105b7bc3131f75e793e786960cd44e891dae211e232fc8. 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/ZA56E2527581.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c559c70e7e1a4f3c435fd46592c3f76e2795f8a229905b27f9f4569780571d3. 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/ZA56E2419632.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccfa39cc35cc9a439b8321c33d05e4dbd885f8693ba789c04f5b4b6392d98870. 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/QZWFH2510717.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x858c4dfc3d9ef544b2a59b777da7fe2f5f1fd2b157cdb88fa2db29dc8640d9b5. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/UK4JC2500188.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc698cf8b07610f4c5e3ba8cf6f688836ef2925cfdfadf1ef96ad0134c06f2fcd. 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/UK4JC2500189.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd09fcfdc93c083c1d263e089795fcf31e212cb1245153879648da463c434b4a. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/ZAAK22300025.
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
Khupukele (feat. De Rose, NATASHA MD, De Soul & Faith Strings)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a22141f13d3666e09cc5fa3ecc25b08979d4f3b144e34ceb37e20e77cbb19a3. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/ZA9092400042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51b30294bd26e8bc4b7a03a49c8fd3fd536254ccc3f25efcfa606bd6cb36d2aa. Chain 2 (Bitcoin): anchored in block 960236 (2026-07-30T09:37:10Z), 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/ZARAR2400021.