These objects can be inserted into a hash table, and are keyed by their semantic value, not the string:

  1> (hash)
  #H(())
  2> *1
  #H(())
  3> (set [*1 (new (app-ver "1.2.3.0004"))] 'mapped)
  mapped
  4> *1
  #H(() (#S(app-ver str "1.2.3.0004" vec (1 2 3 4)) mapped))
  5> [*1 (new (app-ver "1.2.3.4"))]
  mapped
  6> [*1 (new (app-ver "1.2.03.4"))]
  mapped
  7> [*1 (new (app-ver "1.2.02.4"))]
  nil