What I loved is that:
$ echo -en 'basilisk:0000000000:ds26ovbJzDwkVWia1tINLJZ2WXEHBvItMZRxHmYhlQd0spuvPXb6cYFJorDKkqlA' | openssl dgst -sha256 -binary | openssl dgst -sha256 (stdin)= 0000000000000000000000161b9f84a187cc21b172bf68b3cb3b78684d8e9f17
actually works, but is a little sneaky. See https://www.metafilter.com/190463/so-who-is-there-left-to-tr...
Edit2: https://github.com/blackle/Basilisk-Hunter How the examples were generated.