Use a deck of cards for representation. 52 digits where 'K♠' for king-of-spades would be one character in Unicode. it isn't just cosmological unique, it's easie

Use a deck of cards for representation. 52 digits where 'K♠' for king-of-spades would be one character in Unicode. it isn't just cosmological unique, it's easier to read, harder to edit manually, and easier for our pattern recognition to keep track of. And best feature: anyone can generate a random id of such representation by getting a deck of cards and shuffling it properly. Playing cards are ubiquitous. I can see a camera "reading" the decks after they've been splayed on a table after a shuffle. This might even make a better random number seeds. You're not sure if there is any demand for this sort of stuff? Look at dicekeys: https://dicekeys.com/ https://dicekeys.com/