This is the revision history for hashes in <matrix.org:#rAnyijhRxzFRfdjSHl:matrix.org>

factoid_idsubjectcopulapredicateauthornamespace
10398 hashes is [fact hash]
known as an associative array, map or dictionary (but don't call it that in perl contexts), a hash is a data structure that maps strings to scalars. See http://perl-begin.org/topics/hashes/ .
pink_mist <*:##NULL>
9286 hashes is see hash rindolf <*:##NULL>