I’m working on a project what requires around 1 to 2kb of data to be stored for ~80 years.
My thinking was a QR code (ECC H) etched into aluminium. Benefits being no bit rot & the assumption being cameras should still be commonplace in 80 years (And if QR isn’t a commonly used format anymore, surely an AI agent could easily write an app for the user).
Does anyone have any better suggestions or think I’ve missed anything.
Seems very heavy lol, adds a whole new meaning to data density. I’d be concerned about concrete chipping, but I also don’t know much about concrete.
You’d probably want to put it somewhere it isn’t going to get moved a lot. There are concrete additives you can mix in to help with the strength of the finished material as well.
Here’s a link to a genuinely fascinating dive into concrete: https://m.youtube.com/playlist?list=PLTZM4MrZKfW90PdaBFt70BLTbz1bTF6Mn
I also figured that if you made your QR code so that the black sections were slightly raised, making it a working QR code could be as easy as dipping it in white paint, letting it dry, then painting the tops of the raised sections black.