# The numbers don't match their source

Prompts to start with when a PostgreSQL database shows this problem.

- [Can we independently prove these numbers?](https://atlasscope.dev/prompts/can-we-independently-prove-these-numbers): Important figures may be wrong even though their lineage is documented.
- [Find data that is internally consistent but wrong](https://atlasscope.dev/prompts/find-data-that-is-internally-consistent-but-wrong): Every check passes, but totals or outputs still look implausible.
- [Where did this number come from?](https://atlasscope.dev/prompts/where-did-this-number-come-from): Checks that every number on screen can be traced back to a source document.

Source: https://atlasscope.dev/fix/the-numbers-dont-match-their-source