In one sentence
Provenance is the record of where a piece of information came from: which source, which version, and when.
The simple model
When you rely on a fact, provenance answers "says who, and how do you know it is current?" It is the difference between "the price is 49" and "the price is 49, from the current price list, last updated last week."
The first is a claim. The second can be checked and defended, because it carries its origin with it.
Why you care
Provenance is what turns an answer into a trustworthy answer. It matters in three everyday situations:
- When an answer is questioned, you can show where it came from.
- When a source changes, you can find every answer that depended on it.
- When something is wrong, you can trace it back to the source and fix the cause, not just the symptom.
For AI workflows this is central. An AI that cites its source lets a person check the answer in seconds. An AI that gives a bare answer forces the person to trust it or redo the work. This is the basis of the cite the source pattern.
A small example
An assistant told a customer a warranty lasted three years. The customer disputed it. Because the answer cited its source, a specific policy version, the team could see instantly that the assistant had used an outdated policy still in the searchable set. They removed it and corrected the cause, not just that one answer.
What this does not solve
Knowing where information came from does not make the source correct. Provenance tells you what to check, not that the answer is right. A well-cited answer from a wrong source is still wrong; it is just easier to catch.
