source of truth
/ˌsɔːrs əv ˈtruːθ/
the designated authoritative record used when copies or claims disagree
source of truth in a sentence
“The signed contract, not the sales notes, was the source of truth for renewal dates.”
Origin of source of truth
Old French sourse origin + Old English triewth faithfulness
Related Words
reference material
documents, data, or examples supplied as supporting information for a task
provenance
the origin and history of information, including how it was collected or transformed
freshness
the degree to which information is current enough for the task
knowledge cutoff
the point after which a model's training knowledge is not expected to include new events or facts
grounding
connecting a model's response to supplied, retrieved, or observed evidence
citation
an attribution that points readers to the source supporting a claim