sha512 as 140-character node address

gistfile1.rb

rb(main):057:0> sha512 = Digest::SHA512.hexdigest( "The quick brown fox jumps over the lazy dog" )
=> "07e547d9586f6a73f73fbac0435ed76951218fb7d0c8d788a309d785436bbb642e93a252a954f23912547d1e8a3b5ed6e1bfd7097821233fa0538f3db854fee6"
irb(main):058:0> location = 'nodemap.org/' + sha512
=> "nodemap.org/07e547d9586f6a73f73fbac0435ed76951218fb7d0c8d788a309d785436bbb642e93a252a954f23912547d1e8a3b5ed6e1bfd7097821233fa0538f3db854fee6"
irb(main):059:0> location.size
=> 140