# The burden of proof: why "I know they took it" is not enough

> Being sure a competitor took your photo does nothing on its own. Hosts and marketplaces act on evidence, not conviction. Here is what actually counts as proof.

Source: https://tilkie.app/learn/burden-of-proof/
Published: 2026-06-26
Publisher: Tilkie (INFOWISE LIMITED)

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You recognise your own work instantly. The angle, the prop, the edit you spent an hour on. You are completely certain the photo on that other store is yours. Here is the hard truth: your certainty has no weight in the process that actually removes it.

Hosts, marketplaces, and ad platforms do not act on how sure you are. They act on evidence. Understanding why changes how you approach every takedown.

## Why your conviction does not count

Picture the position of the person reviewing your complaint. They receive a large volume of reports, many of them mistaken or made in bad faith, and they have never heard of you or the other store. Two strangers are each claiming the same image. One says "they stole it from me." How is the reviewer supposed to know which one is telling the truth?

They cannot, so they fall back on evidence. The party who can demonstrate ownership wins. The party who only asserts it does not. This is not the platform being difficult. It is the only fair way to handle two competing claims from people they cannot vouch for.

## The claim cuts both ways

Here is the part that catches store owners off guard. The thief can say exactly what you are saying. They can claim the photo is theirs, that you copied them, and that your complaint is the false one. "I posted it first" is a weak argument because dates are easy to fake, reposts muddy the timeline, and a determined infringer will simply assert the opposite.

This matters most when a takedown is challenged. If you file a DMCA notice and the infringer sends a counter-notice claiming the image is theirs, the content can go back up unless you are ready to back your ownership with something more than your word. A complaint that cannot survive a pushback is not really protection.

## What actually counts as proof

Evidence sits on a spectrum from weak to strong:

- **Weak:** a screenshot showing your photo on your store, or a posting date. It helps establish a timeline, but it is circumstantial and contestable.
- **Stronger:** the original full-resolution or source file, a photographer's invoice, or a release. Better, but it relies on the reviewer trusting your documents.
- **Strongest:** something embedded in the image itself that ties the copy back to you and can be verified independently.

That last category is what closes the question. If your image carries an [invisible watermark](/learn/what-is-invisible-watermarking/) that you placed before it was stolen, you do not argue about who posted first. You read your mark out of the infringing copy, and the ownership claim stops being a matter of opinion.

## Proof has to come first

The catch with proof is timing. You cannot create it after the theft, because anything you add to your own copy later does not appear in the version the thief already took. The evidence has to be inside the image before it leaves your control.

This is the gap that separates tools that discourage copying from tools that help you enforce. Blocking right-click or stamping a logo does nothing for the moment a reviewer asks you to prove the image is yours. For more on what reviewers look for, see [what makes evidence admissible for a takedown](/learn/admissible-evidence-takedown/), and on how that evidence is packaged, [what is in a Chain of Proof certificate](/learn/chain-of-proof-certificate-explained/).

Tilkie exists to meet the burden of proof before you ever need it. It watermarks your Shopify images invisibly, so on the day you find a copy, your certainty is backed by evidence that does the convincing for you.