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Identifiers

Last modified: Mar 21st, 2024

• UUID - the “default” identifier, given that it has an RFC
• Proquints: pronounceable identifiers - bits like an IP address become “lusab-babad” for example
  • Paper
  • XXIIVV wiki entry
• ULID - like UUID but smaller, sortable, random+datetime
  • 48 bits for time, millisecond resolution
  • 80 bits for randomness
• KSUID - similar to ULID
  • 32 bits for time, second resolution
  • 128 bits for randomness
  • Comparison to ULID