Your file never leaves this device. We calculate a fingerprint locally and generate a proof report.
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Drop a file here or click to choose
Any file type · Max 2 GB · Processed locally
Calculating SHA-256 hash...
Proof report
Format seal · Not qualified
file—
size—
sha-256—
timestamp—
tsaLocal device clock (not qualified)
location—
proof versionInkSeal Standard v1.0
Make it court-ready
This proof uses your device's local clock — it can be challenged. A qualified timestamp from a ZertES/eIDAS-accredited authority makes it legally admissible.