The honest watermark camera.
Verified when it matters, flexible when it doesn't.
From snapshot to verifiable credential in three steps.
Take a photo. Trustamp records the device timestamp, GPS, and a hash of the image — locally, in EXIF metadata. No upload needed.
One tap to "witness" the photo: a tiny hash + timestamp ping to our server (~200 bytes). The photo itself stays on your phone.
Need proof later? Upload the original. We match the hash, sign a C2PA credential, and give you a share link plus a PDF for your insurance / lawyer / client.
Five things we do differently.
Our server is the clock. Even if your phone's time is wrong (or spoofed), the credential carries a timestamp you can't argue with.
Watermark mode — quick, flexible, no upload, no verification. Credential mode — server-witnessed and signed. You choose, per shot.
Country, city, and street come from your real GPS and can't be edited. The doorplate or unit number? You can refine that — and every refinement is transparently noted on the credential.
Multiple layers of obfuscation and integrity checks make it hard for anyone to forge a Trustamp credential by reverse-engineering the app.
Built on C2PA principles — the open standard
backed by Adobe, Microsoft, Sony, Nikon and others. Verify your
photo two ways: (1) drop it into Adobe Verify or
Chrome to read the C2PA manifest, or (2) share
the public verification URL (trustampcamera.com/verify/<id>)
for any audience — even on platforms that strip EXIF.
Pay for verification, not for taking photos.
Just a watermark camera.
Witnessed at capture. Upgrade later.
Final price TBD before launch — early waitlist gets locked-in pricing.
Full credentials. PDF exports. Public verify URL.
verify.trustampcamera.com URLWe promise: no surprise renewals, one-tap cancellation, transparent pricing.
Not everyone needs every shot to be proof. We don't either.
Prove the package landed at the right door, on time. Settle disputes with insurance, customers, or platforms in seconds.
Property managers, HVAC techs, surveyors — document every site visit indisputably, with a PDF the client can't dispute.
Photos that hold up. C2PA-signed, server-witnessed, verifiable by any adjuster or lawyer using Adobe Verify.
Honest, head-to-head. We'd rather show you the difference than hide it.
Two big differences. (1) Trustamp uses the open C2PA standard, so any tool — Adobe Photoshop, Chrome, third-party verifiers — can independently verify your credential. Timemark uses a closed system where verification only happens on their website. (2) Trustamp lets you refine GPS at the doorplate level (country/city/street are locked), while Timemark doesn't allow GPS correction at all — a top complaint in their one-star reviews.
When you take a photo, Trustamp sends a small fingerprint (SHA-256 hash) of the image to our server — about 200 bytes, no upload of the image itself. Our server timestamps it. Months later, if you need to upgrade that photo to a full credential, you upload the original, we match the hash, and we can vouch that the photo existed on the original capture date. It's cheap, private, and makes "upgrading old photos to credentials" possible.
Yes — but only in Watermark mode, which gives you full creative control with no verification claim. In Credential mode, the image is content-locked from capture. You can still refine the address text (within the GPS-derived street boundary), and every refinement is transparently noted on the credential.
Three layers. (1) A SHA-256 hash of the image is registered server-side at capture time. (2) The credential is signed with a server-held key — we can prove we generated it; you can't forge it. (3) For Pro users, the JPEG itself carries a C2PA manifest, so even outside our platform any C2PA-aware tool (Adobe Verify, Chrome's Content Credentials) can independently confirm authenticity.
Yes. Photos and watermarks are generated entirely on-device. The "witness" step queues if offline and uploads when connectivity returns. The credential timestamp uses the time of the original capture (witnessed when you get back online), so off-grid shoots aren't penalized.
Honestly? Instagram, X, WeChat, and most social platforms strip EXIF metadata, so the C2PA manifest is lost there. That's why we offer two parallel verification routes: (1) the C2PA manifest in the original JPEG (works for email, Dropbox, AirDrop, Adobe tools) and (2) a public verify.trustampcamera.com URL that works on any platform, even after compression and EXIF stripping.
Free forever for the watermark camera. Around $2/mo for the Lite tier (witnessed timestamps with 1,000 witnesses included). Around $5–9/mo for Pro (full C2PA credentials + verify URL + PDF export). Final pricing locked before launch — early waitlist members get a permanent discount.
One email when Trustamp is live. Early signup gets locked-in pricing and Pro features at Lite price for 12 months.