The Lost Generation was the demographic cohort that reached early adulthood in the decade before, or during, World War I, and preceded the Greatest Generation. This generation is generally defined as
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 0xc69639ba0b38175d5d7212dda9b81d84ffca660f360241078008aab0ddc15475. Chain 2 (Bitcoin): anchored in block 954638 (2026-06-21T03:45:44Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d3186dad-af5c-4f9a-a59c-f0c2dd555a19.json and https://artists.proofprofile.net/proofs/artist/d3186dad-af5c-4f9a-a59c-f0c2dd555a19.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).