3. The Hash as identifier PGP again provided the clue cryptographic message digest or Hash Turns any ‘document’ into number: 1Q2TWHE3GMdB6BZKafqwxXtWAWgFt5Jvm3 (Hal Finney’s Bitcoin account) Hashes are: • Secure, unique, global, free • 1:1 with your document 60
First R3 Smart Contract Templates Summit (All Slides) Page 59 Page 61