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 0x314324dcdc6a93bee5156984f4675fb57b1c489c0e64dd04c391d7ed32e77347. 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/dab79c0d-e18a-47dc-a728-a4c05a30a1c0.json and https://artists.proofprofile.net/proofs/artist/dab79c0d-e18a-47dc-a728-a4c05a30a1c0.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Ride The Riddim (Fix's Groove Intention Remix)
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 0x2395a3657b7d49f548555c0f3938bd53e60b7c3819045b8dd81a0a0c4c893713. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T21:49:58Z), 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/GBNAR2000196.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe77ea0c2df78af62a362beebaf4dec6101c85c20c6e740fe3a2f833f9988493. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/QMHDW2200040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x074a7f06e42e6dcce8e1e39dcccad61180419c4b06dcc6d0483a84ab3fab4428. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/GBKQU2479998.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ab466ea25dfe8be2052800b8669bfdfb495094622298639619d11a791cb1b48. Chain 2 (Bitcoin): anchored in block 958805 (2026-07-20T02:22:58Z), 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/GBNAR2500097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a87527767a973c54585a2022291751b9abccfca595b11885dfeadf6bcd39b47. Chain 2 (Bitcoin): anchored in block 959002 (2026-07-21T13:50:10Z), 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/GBNAR2500098.
Don't Wait (DJ Kone & Marc Palacios Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5b4540cabe9f01082f7107d6c69474e9a8ce9ab4321430afb5fa9f9e104875d. Chain 2 (Bitcoin): anchored in block 958251 (2026-07-16T06:29:25Z), 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/GXBNP2552463.
Toolroom Radio EP742 - Presented by ESSEL
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x151bc709ab9e5910733702bfa6a36c38f8a8d43a807ca06bb3eefdc60fe0a73f. 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/QZTRX2494431.