Every claim about money is a compression. PROOF decompresses it.
Paste a quote, a press release line, a viral post. PROOF breaks it into its checkable parts — each one sourced and labeled — and grades the whole claim honestly. No blunt true/false stamp.
Free for the public · Licensing available for newsrooms & fact-checkers
“The city spent $40M on the new water program this year.”
Three steps from a headline to a source.
PROOF isn't a verdict machine. It's a decomposition engine — it takes claims apart the way a careful reporter would.
Paste a claim
Drop in a quote, a press release line, or a viral post — anything asserting a number about money, budgets, or spending.
PROOF decomposes it
The claim is split into its component parts — the figure, the timeframe, the scope, the implied comparison — each checked separately.
Get a graded verdict
Each component gets a sourced status. The whole claim gets a graded verdict — never a flat true or false.
See a real decomposition.
This mockup shows how PROOF handles a claim end to end. In the full product, any pasted claim runs through the same process.
“Federal aid to the district doubled under the new policy.”
Four grades. Never just true or false.
Money claims are rarely outright lies or plain facts. PROOF's verdicts reflect that — a scale, not a coin flip.
Every component checks out against the public record, in the timeframe and scope claimed.
The figure is real but simplifies several parts into one number. The simplification is reasonable.
The number is technically real, but the framing implies something the record doesn't support.
No public, checkable source exists yet for the components the claim depends on.
A decomposition is not a gotcha.
These are the rules PROOF holds itself to on every claim, every time.
No editorializing
Every decomposition labels what's confirmed, what's compressed, and what's missing — without spin in either direction.
Every figure traces to a source
Budget ordinances, disbursement ledgers, legislative records — click through to the actual public document behind every number.
Corrections are open and timestamped
When a decomposition changes, the history stays visible. Nothing is quietly edited away.
Verdicts are graded, never flat
Accurate, compressed but defensible, misleading without context, unsupported — four grades, not a coin flip.
Built for readers. Licensed by newsrooms.
The same decomposition engine serves two very different audiences — a person checking a claim in ten seconds, and a newsroom running it at scale.
For the general public
Anyone who reads a headline number and wants to know what it actually means before sharing it.
- Paste any public claim, free, no account required
- Ask "show me why" or "prove me wrong" on any verdict
- Follow a claim over time to see if it still holds up
For fact-checking orgs & newsrooms
License the decomposition engine directly, or integrate it into your own fact-check workflow and CMS.
- API access to the decomposition and sourcing engine
- White-label embeds for your fact-check articles
- Bulk claim review tooling for editorial teams
Get PROOF before it's public.
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No spam. One email when PROOF opens up — nothing else.