# Proof obligation

> A proof obligation means every commercial claim must be supportable by something checkable — portfolio, case study, metric, receipt, demonstration, before-and-after, or clear scope — before it is made.

Category: Commerce
Also searched as: evidence for claims, substantiation, proof burden
Source: Mediator Solutions — https://mediatorsolutions.io/learn/#proof-obligation
License: free to read, learn, cite, and apply, with attribution to Mediator Solutions.

## What it is

A claim you cannot support is a liability the moment it is tested. The proof obligation pairs each commercial claim with the evidence that backs it before the claim is made: what we do, what it solves, what proof exists, what the client gets, what it costs, what is excluded, what happens next. If the proof does not exist, the claim is not made.

## Why it matters

A claim you cannot support becomes a liability the instant it is tested, and in regulated or high-stakes selling that test can be adversarial. The proof obligation pairs each commercial claim with checkable evidence before the claim is made, and states exclusions and scope as plainly as capabilities. The discipline that protects the brand is the simplest and hardest: a claim without proof is not softened or hedged — it is not made.

## When to use it

- Making any commercial claim, especially in a regulated or high-stakes sale.
- A claim is about to be made that you cannot support with checkable evidence.
- Exclusions and scope are being left vague while capabilities are stated boldly.

## Principles

- Every commercial claim is paired with checkable proof before it is made.
- Acceptable proof: portfolio, case study, metric, receipt, demonstration, before-and-after, clear scope.
- The standard offer states what we do, what it solves, what proof exists, what the client gets, cost, exclusions, next step.
- A claim without proof is not softened; it is not made.

## Practice

1. For each claim in an offer, attach the proof that supports it.
2. If a claim has no proof, remove the claim or produce the proof.
3. State exclusions and scope as plainly as capabilities.
4. Make the next step explicit so the offer is actionable.

## Where it fails

- **Unbacked claim** — A claim is made without evidence, becoming a liability the instant it is tested — possibly adversarially.
- **Scope omission** — Capabilities are stated loudly and exclusions quietly, so the claim overreaches what can be proven.
- **Hedge-instead-of-prove** — An unprovable claim is softened or qualified rather than withdrawn, so the brand still carries the risk.

## In practice

A sales deck claims the product eliminates a class of error. In a regulated buyer’s hands, that claim will be tested, and an unbacked version is a liability. The proof obligation pairs the claim with checkable evidence before it is made, and states the exclusions as plainly as the capability — it eliminates this error under these conditions, with this evidence. The discipline that protects the brand is the hardest and simplest: a claim without proof is not hedged, it is not made.

## Verification

Every claim in a circulated offer is backed by checkable proof, and claims that lack proof were removed rather than asserted.

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