# Single Source of Truth / Availability

> "single-source-of-truth" (contracts-core layer) is traded against "Availability" (correctness-core layer) — a principle cannot be scope-separated from a quality, metric, or cost it competes with; resolve by measuring "Availability" and choosing an explicit operating point.

Record: `tension:availability-single-source-of-truth`
Kind: tension
Canonical: https://banes-lab.com/ontology/schema#tension-availability-single-source-of-truth

## tensions-with

- [Single Source of Truth](https://banes-lab.com/records/arch/single-source-of-truth.md)
- [Availability](https://banes-lab.com/records/lex/availability.md)