HashShot's Chrome extension captures any screenshot, hashes the bytes locally with SHA-256, and anchors the fingerprint to a public blockchain — before the page can be edited or taken down.
The extension pops up wherever you are — newspaper article, infringing listing, regulator's dashboard. Click once and the image is captured, hashed, and anchored without leaving the page.
Switch to the Validate tab and drop in a JPG. The extension computes its SHA-256, checks it against the on-chain record, and tells you in milliseconds whether the bytes match the original capture.
SHA-256 is computed in the browser. Only the resulting 64-character fingerprint — which reveals nothing about the underlying image — is written to the public ledger. The screenshot itself stays on your disk.
Every screenshot from then on becomes part of a defensible chain of custody — by default.