Since that seems like a pretty well-known concept, crudely applied to a domain I haven't seen it in before - but is already large and growing fast - I'm assuming that others have thought of this? I was hoping maybe someone had implemented something like it? And then, obviously, if that proof of concept exists, I'd wonder about some kind of advanced version that used specialized equipment for the reading (and possibly the writing/printing).
In any case, I'm just curious. I was thinking about long term (century +) archival storage, or encryption keys only stored as the print with no digital copies. Stuff that wouldn't need tons of storage, but would be crucial to maintain statically. It probably wouldn't be useful for that, which is why I assume I'm not finding much in my searches for it. But I was just wondering if anyone knew about it, in case there is stuff it's good for.
your X/Y resolution isnt going to be fantastic woth filament, but your Z is gonna really suck.
you could instead print(emboss?) like a barcode on some paper, and encase that in resin. the big benefit being that you can read it non-destructively. keep it out of the sun so whatever ink doesnt fade and you're set
For a small amount of data (crypto keys?), consider deep laser engraving on stainless steel. That's very durable. Or even engrave text into stainless steel with a small CNC mill.
You can engrave QR codes, bar codes, etc. But there's a lot to be said for engraving plain text.
I know it sounds “boring” but it is hard to beat a good acid-free archival paper printed with a good quality ink. Stored in the right circumstances (not too humid, dark place, not on fire) it should last half a millennia easily. It is also pretty much guaranteed that whatever happens we will have the technology to read it again.
Exotics like laser engraved metal plates or ceramics might be better if you have a lot of data and can’t guarantee your storage will be fire and flood free. If you don’t have a lot of data you can also think of engraving it into stone or press it into a clay tablet and fire it. These mediums are known to be very stable even in adverse circumstances.
There is also Microsoft Project Silica which I recall seeing in person at their EBC playing back a movie from it https://www.microsoft.com/en-us/research/project/project-sil...
Then there is m-disc which uses the DVD+R and BD-R/BDXL standards but writing to a sort of glass rather than to the traditional medium. These are cool as they play back n regular players too. https://www.mdisc.com/
If you want something truly long lasting you might find substractive manufacturing techniques like CNC milling better. Indeed there are solutions from companies like Cryptotag for punching cryptographic seed data into plates / blocks of titanium. Something like this could be automated with a CNC router to store a bunch more data.