1AGNa15ZQXAZUgFiqJ2i7Z2DPU2J6hW62i
1111111111111111111114oLvT2
17NdbrSGoUotzeGCcMMCqnFkEvLymoou9j

              "1AGNa15ZQXAZUgFiqJ2i7Z2DPU2J6hW62i"  -- VALID
            , "1Q1pE5vPGEEMqRcVRMbtBK842Y6Pzo6nK9"  -- VALID
            , "1AGNa15ZQXAZUgFiqJ2i7Z2DPU2J6hW62X"  -- checksum changed, original data.
            , "1ANNa15ZQXAZUgFiqJ2i7Z2DPU2J6hW62i"  -- data changed, original checksum.
            , "1A Na15ZQXAZUgFiqJ2i7Z2DPU2J6hW62i"  -- invalid chars

(validate-bitcoin-address "1AGNa15ZQXAZUgFiqJ2i7Z2DPU2J6hW62i") ; => #t
(validate-bitcoin-address "1111111111111111111114oLvT2")        ; => #t
(validate-bitcoin-address "17NdbrSGoUotzeGCcMMCqnFkEvLymoou9j") ; => #t
(validate-bitcoin-address "1Q1pE5vPGEEMqRcVRMbtBK842Y6Pzo6nK9") ; => #t
(validate-bitcoin-address "1badbadbadbadbadbadbadbadbadbadbad") ; => #f
