Browser showcase — real search, real hashing, simulated ledger

Face → where it appears on the web → fingerprint

The search step calls Yandex reverse-image search for the public URL you enter, so every candidate below is a page that really contains that image. Hashing is the same canonical SHA-256 the CLI anchors on-chain. The blockchain itself is CLI-only — this page keeps the fingerprint in a browser ledger so you can still see tamper detection work.

1 · Drop a portrait

Use an image that exists publicly (e.g. a Wikimedia portrait). The bundled sample is OpenCV's Lena.

Choose image

2 · Public URL of the same image

Reverse-image engines need a URL. The CLI uploads for you; the browser page asks for one instead.

PreviewBrowser FaceDetector

No image yet

Pipeline

01idle

Load image

02idle

Detect face

03idle

Reverse-image search

04idle

Face check on candidates

05idle

Canonical + SHA-256

06idle

Anchor (browser ledger)

For the real thing — ArcFace similarity scores, the Solidity VerificationRegistry, transaction hashes and on-chain re-verification — run the CLI:python main.py demo --image samples/input.jpg. Source on GitHub.