Features

How a photo becomes proof.

Sealed when it is taken. Timestamped by an independent party. Checkable by anyone.

In a nutshell

BildProof is

  • sealed,
  • timestamped,
  • AI-proof.

Every photo gets a digital fingerprint the moment it is taken.

An independent party confirms the date and time.

Any change, AI or not, can be proven.

Sealed

Unchanged since it was taken.

Every photo gets a digital fingerprint the moment it is taken. Change the photo and the fingerprint no longer matches.

Original
✓Matches the seal
Edited
✕Does not match the seal
Timestamped

Confirmed by an independent party.

A qualified eIDAS timestamp records when your report existed exactly as it is.

Qualified timestamp
30 Sep 2026, 16:35:12
DGN Deutsches Gesundheitsnetz Service GmbH
Supervised byBundesnetzagentur
LawArt. 41 eIDAS
Real or edited?

BildProof is AI-proof.

AI can change any photo in seconds today. A BildProof photo is sealed the moment it is taken: any change can be proven.

One sentence is all it takes:
Generating
Original
AI-edited
But you have BildProof.Your original photo is sealed and carries a timestamp.
BildProof
Living room, wall12 Sep 2025, 10:24✓Sealed✓eIDAS timestamp
AI can change a picture.BildProof protects your proof.BILDPROOF

Compare move-in & move-out

The same room at move-in and at move-out, every photo dated.

The same room at move-in on 2 Oct 2024 and at move-out on 30 Sep 2026
Scan 1 · Move-in2 Oct 2024
Scan 2 · Move-out30 Sep 2026
Check

Anyone can check that a photo is real.

One link is all it takes. No app, no account.

Open the check link

Seal and timestamp are checked

Real or changed: you see it at once

Check a report

Frequently asked questions

What does sealed mean?

Every photo gets a digital fingerprint the moment it is taken. If the photo is changed afterwards, it no longer matches its seal.

Can AI fake a BildProof photo?

Any photo can be edited, AI included. An edited photo no longer matches its seal, though, and every check shows that.

What does the timestamp prove?

That your report existed in exactly this form no later than the stamped moment. Under Article 41 eIDAS a qualified timestamp carries a legal presumption that the time is accurate and the data unaltered. The timestamp comes from DGN Deutsches Gesundheitsnetz Service GmbH, supervised by the Bundesnetzagentur.

How do I check a photo?

Open the check link from the report, or go to bildproof.de/verify. No app, no account.

Scanning is free.

You pay €9.99 per handover or €14.99 for move-in and move-out together, only when you send. No subscription.

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