Universally Unique Identifier

GPTKB entity

Statements (27)
Predicate Object
gptkbp:instanceOf gptkb:identity
gptkbp:abbreviation gptkb:UUID
gptkbp:category computer science
information technology
gptkbp:collision_probability very low
gptkbp:example 123e4567-e89b-12d3-a456-426614174000
gptkbp:format hexadecimal
five groups separated by hyphens
gptkbp:hasVersion UUIDv1
UUIDv3
UUIDv4
UUIDv5
https://www.w3.org/2000/01/rdf-schema#label Universally Unique Identifier
gptkbp:introduced 1980s
gptkbp:length 128 bits
gptkbp:standardizedBy gptkb:ISO/IEC_9834-8
gptkb:RFC_4122
gptkbp:used_in distributed systems
software development
databases
gptkbp:usedFor unique identification
gptkbp:UUIDv1_based_on timestamp and MAC address
gptkbp:UUIDv3_based_on MD5 hash and namespace
gptkbp:UUIDv4_based_on random numbers
gptkbp:UUIDv5_based_on SHA-1 hash and namespace
gptkbp:bfsParent gptkb:UUID
gptkbp:bfsLayer 6