Seal raw footage the day you shoot it, before it is edited. Each seal records the file's SHA-256 fingerprint and links to the seal before it, so the order can't be rearranged later. When someone says a clip was altered, you hand them the receipt and the original file and they can check it themselves.
0Sealed files
0MB sealed
—Chain head
Seal a file
Chain
Nothing sealed yet. Files are read in the page and never uploaded.
Verify
Anyone can check a file against a receipt here, including a reporter, a lawyer, or the person you filmed. Load the receipt first, then choose the file.