Bengt,

Bengt Richter 写道：
> BTW, how did nix get such a weird alphabet for 0-31 ? 
> Watermarking themselves? :)

This question probably deserves a Nix FAQ entry by now, if there 
isn't one already :-)

  “This is to reduce the possibility that hash representations 
  contain character sequences that are potentially offensive to 
  someusers (a known possibility with alphanumeric representations 
  of numbers).”
    -- https://edolstra.github.io/pubs/phd-thesis.pdf

Excercises for the puerile reader are obvious.

Kind regards,

T G-R