I submitted a the following bug to the Debian bug tracker: http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=619183 Does anyone else have the same problem, or am I doing it wrong? For example: $ hashcash -m foo -b 30 -Z 2 hashcash token: 1:20:110321:foo::D98FQryEx9gxON+9:82nc It is no 30 bits, as the 2nd field shows, and verifying it with SHA1 shows such: $ echo -n 1:20:110321:foo::D98FQryEx9gxON+9:82nc | sha1sum 00000b8fc2f1b82dbda883499d9ed9c8e30f130e - Has anyone else seen this problem? -- . o . o . o . . o o . . . o . . . o . o o o . o . o o . . o o o o . o . . o o o o . o o o