Attack of the Jurassic Shark (also called Jurassic Shark) is a 2012 Canadian independent adventure horror-thriller film project directed by Brett Kelly. It parodies two Steven Spielberg-directed films
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x641fac0cc25daaf7f216616f804d23e5a53caf868e12cd2c7387af9bc9dee783. Chain 2 (Bitcoin): anchored in block 954043 (2026-06-17T04:15:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/40b3e3a4-d0d8-4b48-b9a1-b2d0fa1a7876.json and https://artists.proofprofile.net/proofs/artist/40b3e3a4-d0d8-4b48-b9a1-b2d0fa1a7876.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).