The first capture of something you made: the finished piece, the details and the stages in between. Every photo carries Content Credentials, and an independent service timestamps the file, so the date does not rest on your word.

Someone posts your design as theirs. The question becomes who had it first, and when.
The date in an ordinary photo file can be edited in seconds.
Sketches and in-between versions show your hand, and they are rarely kept together.
The Progress template in the app has an overview and details. Make a file at each stage, and the timestamps show the order.
Content Credentials (C2PA) travel inside each image and record which app and which device made it.
The first sketch, the stages and the finished piece, each in a file of its own or together.
An independent service timestamps the series. The date these photos existed is then fixed.
The file stays on your phone until you share it as a report, an archive or a link.
They open the file in the browser, with no account and nothing to install: the photos, which app and device made them, and the time from an independent service.

No. The file does not grant or register any right. It records when these photos existed and which app and device made them.
An open standard (C2PA) that stores the origin of an image inside the file: which app, which device, and when.
Yes, with the evidence extract: one or two captures with the hashes that show they sat in the sealed series, without the others.
It records what the camera sees. For a design on a screen the photo shows the screen, and a photo of a screen is still a photo.
The snags at handover, and whether the builder put them right.
Read more →The condition at handover, and how the parcel looked when it was sent.
Read more →Before and after, extra work, and what was under the floor before it was closed up.
Read more →