"The Long Con" is the 38th episode of Lost. It is the 13th episode of the second season. The episode was directed by Roxann Dawson, and written by Leonard Dick and Steven Maeda. It first aired on Febr
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 0xc13a731b499c3f8a548b617a14d1cfd2868f6818f949a193b1b25732e566ad9f. Chain 2 (Bitcoin): anchored in block 953807 (2026-06-15T16:39:18Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ea3eba8e-8abd-4048-8993-be598d0c6303.json and https://artists.proofprofile.net/proofs/artist/ea3eba8e-8abd-4048-8993-be598d0c6303.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).