First, you need to get the corpus. If you don't already have the gpg
key for David Bremner, run
- % gpg --search 'david@tethera.net'
+ % gpg --locate-external-key 'david@tethera.net'
This should get you a key with fingerprint
- 815B 6398 2A79 F8E7 C727 86C4 762B 57BB 7842 06AD
+ 7A18 807F 100A 4570 C596 8420 7E4E 65C8 720B 706B
(the last 8 digits are printed as the "key id").