[pavel_lishin]

I don't recall the Fithp's artefacts requiring destruction to read; I thought they were just created with (presumably) lasers, writing the information in a way that would resist erosion - if one does get eroded, you just slice the eroded part away, re-revealing it again.

[pastage]

I do not remember, and tried not not imply destruction. It is just the easiest way to do it on your own with ceramics.