Unforgettable may refer to: Film Unforgettable (1996 film), a thriller starring Ray Liotta Unforgettable (2014 film), a Bollywood film Unforgettable (2016 film), a South Korean film Unforgettable
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 0x9f5a4e420c30fb02fb784e905d2a65a425a2dc9b59024483c1d7b589075809f5. Chain 2 (Bitcoin): anchored in block 953654 (2026-06-14T16:26:51Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/4a93372d-e4e8-4c7e-9a2d-3b4ffd6af44c.json and https://artists.proofprofile.net/proofs/artist/4a93372d-e4e8-4c7e-9a2d-3b4ffd6af44c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).