Stamp Your Content as Human-Made

Prove your content was created by a verified human

Your content never leaves your device. Only the hash is sent.

Drop your file here or click to browse

File is hashed locally - never uploaded

Content Stamped

Your content has been certified as human-made

CERTIFIED HUMAN-MADE
Stamp ID
Content Hash
Author PoY ID
Timestamp
Signature
Authentic true
Verification Link
Embeddable Badge HTML

Your Recent Stamps

How It Works

Hashed On-Device

Your content is hashed locally using SHA-256. The original content never leaves your browser.

Only the Hash Is Sent

We receive a fingerprint of your content - not the content itself. Your work stays private.

Publicly Verifiable

Anyone can verify your stamp is authentic using the verification link or embed badge.