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 0xec0ab0a677a193cbcc0bac50ef10d03cac65d8174038fc78cacb4518c7cdcb6a. 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/cf6576ed-2ff4-47f4-87df-72b26baccd02.json and https://artists.proofprofile.net/proofs/artist/cf6576ed-2ff4-47f4-87df-72b26baccd02.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Shiny Disco Balls - Illyus & Barrientos Refix
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 0x40bd97c86e03003f210669ebf9494dca04dd3d4f29f18348a697cd1caeda02a8. 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/NLF712106699.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd90ffaf72dd664322bd2aa6b6a85cd50aace3d92dd60461144d16d4c6dcd9f8c. 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/NLF712106305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42e3db4a565ebf968acc9815c3154e83c7bc0ddaf4099658cde3eaf4a036c840. 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/NLF712001380.
Everything But You (feat. A7S) [Illyus & Barrientos Remix]
Everything But You (feat. A7S) - Illyus & Barrientos Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09c069ed0fe532e521ce00489ab7b29007f59be8bf472a50d33d7999c612c529. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/GBAHS2200362.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x995165c4f8afa9d4530b388a8cab59da2f7db434a2d443e5403fa00b8a850793. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/GBAHS2200065.
In The Music (feat. Adam Clay) [Extended Mix]
In The Music (feat. Adam Clay) - Extended Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a69a98ec8f72dcde1124c4924b9324f2a7a6800d8382f93b37a09fc799e7f80. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/NLZ542300992.
Energy (with A$AP Rocky) - Illyus & Barrientos Remix
Energy (Remixes) (feat. Sabrina Claudio)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x720b4ac3f49726e4e18329c06439f1ae7840f95d0e43ba05d66378aa694eca99. 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/USRC11902048.
Toolroom Radio EP743 - Presented by Mark Knight
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae240b1ac75818297ff5102dab00c7407907cc64c76999cf738758ca285cc09c. 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/GBJAJ2400847.