The Lost Boys is a 1987 American comedy horror film directed by Joel Schumacher and written by Jeffrey Boam, Janice Fischer, and James Jeremias. Based on a story by Fischer and Jeremias, it follows tw
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 0xb16a6fb07a5eebd760171c2964a36c3dd3f52406cede5d256e32c96811a8fe5d. Chain 2 (Bitcoin): anchored in block 953922 (2026-06-16T09:36:34Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1b0c5501-8258-4c32-be0a-c4b58ec7b02d.json and https://artists.proofprofile.net/proofs/artist/1b0c5501-8258-4c32-be0a-c4b58ec7b02d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).