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 0x07ea06497eec46d31067601d46cc211af0660ce08457511e9e0f1e8458140005. Chain 2 (Bitcoin): anchored in block 953727 (2026-06-15T02:33:01Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/90b4da39-3d3f-4db7-9e8a-71c39faed03e.json and https://artists.proofprofile.net/proofs/artist/90b4da39-3d3f-4db7-9e8a-71c39faed03e.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 0xbd7a90c42d64d675d360354cbbc888e1804dfc27851abaab2542908f01da82df. Chain 2 (Bitcoin): anchored in block 959009 (2026-07-21T16:06:11Z), 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/USNRS2242358.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e88f4af66e626ada25df507473df63c8d01e4e3d52406a571dda401ea18c76f. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T08:01:39Z), 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/NLF712307044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13398c512242c0114355d008d843c11fb30be66ad87e27bb9c5e372b7f2f9b86. 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/NLF712407299.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc679e429e015bb86dc86aeb957b5c900e424cdc87fb73b61d32fb53a4f30c742. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/GBKQU2502414.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62aa67e9346c808180c7f165e781ef7555832b1a1c5d7a17c11cb1312abadc18. Chain 2 (Bitcoin): anchored in block 957771 (2026-07-12T23:27:28Z), 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/QM6N22509727.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e5de8ca1b3c2e33041e3a2bdb03550b6d0693306970662fb6ebd98cb9738142. Chain 2 (Bitcoin): anchored in block 958349 (2026-07-17T04:50:20Z), 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/UKJSW2500024.
Don't You Worry Child - Charming Horses Remix
Armada Deep House Selection, Vol. 9 (The Finest Deep House Tunes)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb4e0ee0208b174f9c481d1f52fdbecfd038795027804d325794e10ab4df55ac. 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/DEBL31502642.
Toolroom Radio EP776 - Presented by Illyus & Barrientos
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc679e429e015bb86dc86aeb957b5c900e424cdc87fb73b61d32fb53a4f30c742. 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/GBKQU2502414.