LPOE v1 · Lumenite Proof of Existence

Proof that lasts.

Create a permanent proof-of-existence timestamp on the Lumenite blockchain.

CREATE PROOF

Stamp a file

Lumenite Mainnet

↓

Drop your file here

or click to choose a file

Nothing is uploaded

SHA-256 DIGEST LOCAL

Private by design

Files are hashed locally using your browser's cryptographic API.

Blockchain anchored

The SHA-256 digest is committed directly into the Lumenite blockchain.

Verify anytime

The downloadable certificate can be independently verified later.

INDEPENDENT VERIFICATION

Verify a proof.

Confirm that a file matches its Lumenite Proof of Existence certificate and its blockchain commitment.

VERIFY

Check an LPOE certificate

ORIGINAL FILE

Select original file No file selected

CERTIFICATE

Select .lmtproof No certificate selected

LPOE v1

Simple proof. Open verification.

WHAT LPOE PROVES

“This exact SHA-256 digest was committed to the Lumenite blockchain no later than the block containing the commitment.”

Lumenite Proof of Existence creates a permanent blockchain commitment to the SHA-256 digest of a file.

PRIVACY

Your document is never uploaded.

Lumenite Stamp calculates SHA-256 locally in your browser. Only the 32-byte digest is submitted to the service.

IMPORTANT

What LPOE does not prove

A proof does not by itself establish authorship, ownership, identity, authenticity, provenance, legal signature, or legal rights to the underlying content.