thumb|Lancaster at the 2009 premiere of Accidents Happen.Andrew Lancaster is an Australian film director. At the Asia-Pacific Film Festival, he won the "Best Short Film" award in 1993 for Palace Cafe
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x367e31e95f61dbbdeeb47bd12163adf611f36ec9d7c83a30511c2610008c6c9a. Chain 2 (Bitcoin): anchored in block 953625 (2026-06-14T11:37:06Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/22a92d3d-5b40-4c38-8f3c-04a5883afe5c.json and https://artists.proofprofile.net/proofs/artist/22a92d3d-5b40-4c38-8f3c-04a5883afe5c.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
The Desert Said Dance (Original Motion Picture Soundtrack)
Inshalllah A Boy (Original Motion Picture Soundtrack)