Professor of Applied Worry Explains UUIDs

{
  "input": {
    "prompt": " Photo or illustration of “Professor Lena Quibbleton” in a university office/classroom, gesturing at a whiteboard where the string is written in four blocks; around it are circled phrases like “UUID?”, “cursed locker combo”, “message from the future”, “password chosen out of pity”; the professor should look earnest and slightly frazzled; shelves of books labeled with pseudo-academic titles (e.g., “Advanced Panic”, “Modern Dread Systems”) to reinforce satire."
  }
}