Public proof of authenticity
Document proof
A permanent record that this document is sealed and timestamped. The subject and signer details stay private — unlock them by uploading the file.
Authentic & unaltered
This document carries a valid Let's Seal seal and has not been modified.
Shows the sealing certificate and that the file is byte-for-byte intact.
Independent proof it existed by a certain date, on the public Bitcoin ledger.
Download .ots proofThe subject isn’tshown publicly. If you have the document, upload it to confirm it matches and unlock the details — it’s hashed in your browser’s request and never stored.
9603c9ace7f327c1f7e6cfedb11f4226fcf2e56e486ccd4e96dc44539ab69f6eVerify it yourself. Download the .ots proof and run ots verify your-file.pdf to confirm the anchor against Bitcoin — the proof stands on the public ledger. Let's Seal holds no cryptocurrency and you never touch a coin or a wallet — we use the public ledger the way a notary uses a public register, to stamp a record no one can alter.
Transparency log
Recorded as entry #41in Let's Seal's public, append-only log (of 53 total).
The log can only ever be appended to — never edited or deleted, and anyone can prove it. Fetch this entry's inclusion proof and check it against the signed tree head; the head's root is itself anchored to Bitcoin.
Does this issuer look like it's impersonating someone? Report this issuer