Three codes were hidden in the HTML source of the CRACKING THE VOYNICH post on the Investigate Ingress blog.
[1] 967b8ba9af888a868f7b9687a8adaf7e86
[2] 9a6rohdusse9n2p3
[3] sxu83wvtizwv623xv
Code #1
Observations
Looks like hex but range is off
Code #2
Observations
16 characters with the right amount of numbers for a valid passcode
Code #3
Observations
Passcode format is there, remember to apply the same method to the keyword