The Last Detail is a 1973 American comedy-drama film directed by Hal Ashby, from a screenplay by Robert Towne, based on the 1970 novel by Darryl Ponicsan. The film stars Jack Nicholson, Otis Young, Ra
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 0x7d739633b91ec8e59b1cbb16417e8f3619b0d507cf352746e8720bbf37860ad4. Chain 2 (Bitcoin): anchored in block 954784 (2026-06-22T02:53:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/eda77118-e3d0-4ac3-974a-e47b5aad38ec.json and https://artists.proofprofile.net/proofs/artist/eda77118-e3d0-4ac3-974a-e47b5aad38ec.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 0x6f210456bda661188f41ea9cc00246ef3405bb657b49c6ec25020f1818edce3f. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-16T23:37:19Z), 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/ES6641800123.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb307fd1f0a388d959b86a3d524316f738f43b1a2b6c1daa85604fbbb9716ab1. 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/ES6641800124.
Pardon My French (Singles 1996-1998) (Special Reissue)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49bbebb5c07871aadd3688ef7f2dad6fa325db95e743c6371d77d7cd44c9733a. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/ES6640110278.