Upload any document and get permanent, unforgeable proof it existed — exactly as-is — from this moment forward. Collect e-signatures, route approvals, and optionally store files forever with a one-time fee. No monthly storage costs.
Trusted by professionals in legal, construction, finance, insurance, and compliance
One upload. Three layers of protection.
Drop any file — PDFs, images, contracts, anything up to 100MB. Your file's unique digital fingerprint is created instantly, right on your device, before it ever leaves your hands.
That fingerprint is written to a permanent public record that nobody — not even us — can change, backdate, or delete. Your file now has an unbreakable timestamp.
Share a verification link with anyone. They can confirm your document is authentic and unaltered — without ever seeing the file itself. No account needed.
The tools professionals need for documents that matter.
We never see, read, or store the contents of your documents on our servers during verification. Only the digital fingerprint — a short string of characters — is recorded. Your files remain 100% private.
Once recorded, your document's timestamp can never be changed — not by us, not by anyone. It's a permanent, publicly verifiable record that holds up in court.
Anyone can drop a file into our free public verifier to check if it matches the permanent record. No account required. No data shared.
Collect legally binding e-signatures with a full audit trail. Route documents through sequential or parallel approval chains. Every signature is permanently linked to the document's record.
Every version of every document is tracked and recorded independently. See exactly what changed, when, and who made it. No version can be silently altered after the fact.
Optionally store your files permanently with a one-time flat fee. Your document is encrypted with military-grade security and stored on a network designed to last 200+ years. Pay once, never again.
Start free. Scale as you grow. Permanent storage has no monthly fees.
For individuals getting started.
5 document snapshots per month.
For professionals who need more.
10 document snapshots per month.
For teams handling critical records.
100 document snapshots per month.
Need more? Basic (25/mo, $19) · Business (500/mo, $149) · Enterprise (unlimited, $399) — View all plans
Your files, encrypted and stored permanently. No monthly fees. No renewals. Ever.
Want your files stored permanently — not just proven? Add 4ever storage to any document for a one-time flat fee starting at $1.99 plus a small cost based on file size. Your file is encrypted with AES-256 military-grade security and uploaded to a decentralized network designed to last 200+ years.
Pre-purchase storage credits in bulk and save up to 25%. Packages from $10 to $1,000.
Drop any file into our free public verifier to instantly check if it matches a permanent record. No account required. No data shared.