groupid

Group IDs contain information about the type of symmetry, the group’s owner, and the domains in the group.

Here’s an example:

v1:a:DUS2oe94xFjaxf4CvZWLOyTRWJEXKgy6BtjfEXOHkwk=:+KAF43z0uQ/2zuW1oGrMaia5H6QU+3ZIRKEo2lldJzs=

Breaking this down, it’s a string with four components separated by colon characters (:).

1. The string v1.
2. The symmetry type code. In our example, the Palindrome type code is a.
3. A sha256 hash of the owner URL. In this example, sha256(https://example.blog).
4. A sha256 hash of all the domains in the group. In this example, we only have one domain in the group, so sha256([etutitsni.elpmaxe.example.institute]).