The ulid vocab implements the Universally Unique Lexicographically Sortable Identifier gereration according to the specification: https://github.com/ulid/spec. The main word to call is:

ulid ( -- ulid )

Binary convertion interface:

ulid>bytes ( ulid -- byte-array )

bytes>ulid ( byte-array -- ulid )

Helpers:

normalize-ulid ( str -- str' )