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 0x841c5aca3e366da0a6b80b3b96f9aa1336f5ac361de05b561087665194fe03ba. 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/77b0c1be-624d-40e7-a19d-13c0b72479f5.json and https://artists.proofprofile.net/proofs/artist/77b0c1be-624d-40e7-a19d-13c0b72479f5.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 0xaca41dc92ee487ed585ecd324ce257ae8a320893a53068b813149a052a4ba074. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T12:22:53Z), 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/QM42K2276378.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bb1d64471b2e393a8afb64bb9694da69345b55b114efe9005815cb37d04a944. 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/QZS642264275.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b1e93567b5b72a3be19b37962119aeca778dcef0a7ad8bda04fdb6b7fa4291f. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-20T00:08:06Z), 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/NL8NY2400159.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x327f995d6c7339c9b6ac19d8d87693e5ee09cc26160d2053286503afc21c2c7c. Chain 2 (Bitcoin): anchored in block 958800 (2026-07-20T00:52:19Z), 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/CA5KR2448100.
Don't Stop The Music (slowed + reverb) [feat. Bomber & Eddy Black]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfca13ee4b1e98b40a5748ad88e232621075b1f1e7e6f0afa6871e087b19542df. 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/QM42K2227510.