Jurassic Park is a 1993 American science fiction film directed by Steven Spielberg and written by Michael Crichton and David Koepp, based on Crichton's 1990 novel. Starring Sam Neill, Laura Dern, Jeff
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 0xd990d4675c6f18263b1fa3fe945896bfb653e2753088e81ce293b193d4680530. Chain 2 (Bitcoin): anchored in block 954346 (2026-06-19T03:51:26Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/92baada3-4eff-4c84-976c-505d5d865b15.json and https://artists.proofprofile.net/proofs/artist/92baada3-4eff-4c84-976c-505d5d865b15.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).