Works without an account

Verify any stamp.

Check if any file or text was sealed on MegaETH. The verifier runs entirely in your browser — we never see your data, and it works even if TruthStamp goes away.

Paste the exact text you want to verify

Hashing happens locally in your browser. The text never leaves your device.

Drop a file or click to upload

PDF, image, video, audio, or text — up to 100 MB

Your file is hashed locally. We never receive or store it.

Stamp ID or transaction hash

Verify without us, anytime, forever

Every TruthStamp proof can be verified without TruthStamp existing. Even if our website disappears tomorrow, your proof is still valid. Here's how anyone can verify it directly on MegaETH:

Calculate the SHA-256 hash of your file or text. Most operating systems can do this — on Mac/Linux: shasum -a 256 yourfile.pdf.
Visit any MegaETH block explorer like megaexplorer.xyz and look up the transaction hash from your proof certificate.
Compare the hash stored on-chain with your calculated hash. If they match — your proof is real, your timestamp is real, and nobody can change it.

Read our full permanence promise →