The Lost Weekend is a 1945 American drama film noir directed by Billy Wilder, and starring Ray Milland and Jane Wyman. It was based on Charles R. Jackson's 1944 novel about an alcoholic writer. The fi
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 0x6371b517df4acada730fa03d6ad0165b4f8098ba1e1012859efe7bccf52bf04e. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/79ba687a-0b2c-4ffe-9e08-350fc1721e82.json and https://artists.proofprofile.net/proofs/artist/79ba687a-0b2c-4ffe-9e08-350fc1721e82.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).