What if you end up with a picture of the record & everything else gets lost - that riddle will still work. Say the civilisation that found it collapses & leaves behind some garbled data, including a picture of the record.

Or even future human data archeologists digging through a mix of 20 & 21 century data heavily polluted by AI slop. ;-)

I really wonder how future archaelogists are ever going to decode our timeline. Imagine a meteor strikes, civilization falls apart, and in 20,000 years they dig up a data centre. Even if they get the computers to work and the hard drives are still readable, everything will be encrypted.

What if extraterrestrial "intelligence" didn't have a reason to "evolve" functional equivalents of a visual cortex. Even on earth where having vision gives a distinct evolutionary advantage over non-vision based living forms, species without vision far outnumber those with vision.

Making the data fault tolerant to the discovery by another civilization, its collapse and later rediscovery by another civilization seems a bit of a stretch goal. :)