Drop a photo · the browser hashes it locally · we sign the hash into a public chain of custody. Six months later, in court or to a client, you verify it in 3 seconds with the open-source verifier. No platform lock-in · no subscription required for verification · the proof is yours forever.
Your handle is your provable name. The PIN unlocks signing on this device · we never store it on the server. Free plan includes 10 signatures per month and unlimited verification.
We compute SHA-256 locally · only the 64-character hash is sent for signing into the public chain. Your photo bytes stay on your device. After signing, you receive a portable .nodatasig sidecar file that anyone can verify · forever.
Upload two files · image, RAW, anything. We don't try to detect forgery · we check which one is signed first on the chain. The verdict lands in 3 seconds.
Images stay in your browser. Only a SHA-256 fingerprint (64 hex chars) leaves the device. The file itself never crosses the wire.
We don't detect forgery. We check proof.
The verifier is open source on GitHub. Your client, your court, your stock agency · all run the verifier themselves and confirm your signature without trusting NoData or MyGate. Day-root anchors are published daily so anyone can audit the chain's history end-to-end.
You pay to sign · your clients verify free. Cancel anytime · your existing signatures stay valid forever, since the verifier is open source and signatures are portable.