Package: ulid Type: Package Title: Generate Universally Unique 'Lexicographically' 'Sortable' Identifiers Version: 0.4.0.2 Date: 2026-01-11 Authors@R: c( person("Bob", "Rudis", role = "aut", comment = c(ORCID = "0000-0001-5670-2640")), person("Suyash", "Verma", role = "aut", comment = "ULID C++ "), person("Dirk", "Eddelbuettel", role = c("aut","cre"), comment = c(ORCID = "0000-0001-6419-907X"), email = "edd@debian.org")) Description: Universally unique identifiers ('UUIDs') can be sub-optimal for many uses-cases because they are not the most character efficient way of encoding 128 bits of randomness; v1/v2 versions are impractical in many environments, as they require access to a unique, stable MAC address; v3/v5 versions require a unique seed and produce randomly distributed IDs, which can cause fragmentation in many data structures; v4 provides no other information than randomness which can cause fragmentation in many data structures. Providing an alternative, 'ULIDs' () have 128-bit compatibility with 'UUID', 1.21e+24 unique 'ULIDs' per millisecond, support standard (text) sorting, canonically encoded as a 26 character string, as opposed to the 36 character 'UUID', use 'base32' encoding for better efficiency and readability (5 bits per character), are case insensitive, have no special characters (i.e. are 'URL' safe) and have a monotonic sort order (correctly detects and handles the same millisecond). URL: https://github.com/eddelbuettel/ulid BugReports: https://github.com/eddelbuettel/ulid/issues NeedsCompilation: yes Encoding: UTF-8 License: MIT + file LICENSE Suggests: tinytest Imports: Rcpp LinkingTo: Rcpp RoxygenNote: 7.3.3 Repository: https://eddelbuettel.r-universe.dev Date/Publication: 2026-02-26 00:27:53 UTC RemoteUrl: https://github.com/eddelbuettel/ulid RemoteRef: HEAD RemoteSha: 056d8c093ac97895a033b14f0bd2d196b49abb0a Packaged: 2026-06-23 17:40:48 UTC; root Author: Bob Rudis [aut] (ORCID: ), Suyash Verma [aut] (ULID C++ ), Dirk Eddelbuettel [aut, cre] (ORCID: ) Maintainer: Dirk Eddelbuettel