Legal · Terms

Terms of Service

The agreement that governs your use of NumProof. NumProof verifies arithmetic and structural consistency only — source data and business assumptions remain your responsibility.

Template — pending legal review. This is an early-startup template provided for transparency. It is not final legal text and may change before formal review is complete.
Agreement

The service

NumProof is a deterministic numeric-verification service. It returns VERIFY / REFUTE / ABSTAIN verdicts on numeric claims and produces signed audit, diff, and covenant bundles that anyone can re-check offline. By creating a key, sending a request, or otherwise using NumProof, you agree to these Terms.

Scope · Binding

Correctness boundary

NumProof verifies arithmetic and structural consistency only. Source data and business assumptions remain the client's responsibility. A VERIFY verdict means the numbers are internally consistent given the inputs you supplied — it is not an assurance that those inputs are accurate, complete, lawful, or fit for any purpose. You are solely responsible for the data and assumptions you submit and for any decision made on the basis of a verdict.
Disclaimer

No warranty

The service is provided "as is" and "as available," without warranties of any kind, whether express, implied, or statutory, including any implied warranties of merchantability, fitness for a particular purpose, and non-infringement. We do not warrant that the service will be uninterrupted, error-free, or that any verdict will meet your requirements.

Liability

Limitation of liability

To the maximum extent permitted by law, NumProof and its operators will not be liable for any indirect, incidental, special, consequential, or punitive damages, or for any loss of profits, revenue, data, or goodwill, arising from your use of the service. Our total aggregate liability for any claim relating to the service will not exceed the greater of the amount you paid us for the service in the three months preceding the claim, or USD 100.

Conduct

Acceptable use

You agree not to:

Attempt to break, overload, or circumvent rate limits, authentication, or billing.
Reverse-engineer the signing key or forge signed receipts.
Submit unlawful content, or data you do not have the right to process.
Use the service to mislead third parties about what a verdict attests.
Resell or sublicense the service except as expressly permitted.

We may suspend or terminate access for violations or to protect the service, with notice where practicable.

Billing

Payment & credits

Paid usage is metered in credits, purchased via USDC top-ups on Base or paid per call via x402 where configured. Pricing and credit costs are published on the pricing page.

TermDetail
Non-refundableCredits are non-refundable once consumed. Unused, unexpired credits may be refundable at our discretion.
Free trial creditsTrial credits carry no cash value, may expire, and may be withdrawn or adjusted at any time.
On-chain settlementTop-ups settle on Base. On-chain transactions are final; we credit confirmed transfers idempotently.
TaxesPrices exclude applicable taxes, which are your responsibility.
Jurisdiction

Governing law

These Terms are governed by the laws of [governing-law jurisdiction — to be finalized], without regard to conflict-of-laws rules, and any dispute will be subject to the exclusive jurisdiction of the courts located there. We may update these Terms; continued use after an update constitutes acceptance.

Questions about these Terms: support@numproof.com.