Proof for the documents that matter. Every signed contract gets a SHA-256 fingerprint and a hash-chained audit trail — so anyone holding the document can confirm it has not been altered since signing.
Sign any document in DocFila with our standard e-signature flow. Nothing changes for you.
The signed PDF is hashed with SHA-256. The hash — not the document — is what gets recorded.
The hash is stored with a timestamp and chained to the previous entry in the document's audit trail, so a later edit cannot be made to fit. Cost to you: zero.
Anyone with the document can independently confirm it existed at signing time and hasn't been altered — even if DocFila no longer exists.
A hash-chained audit trail records every view, click and signature event with a timestamp, and the SHA-256 fingerprint shows whether the file has changed since signing.
The proof lives on a public chain, not on our servers. If DocFila disappears tomorrow, your proofs still verify.
Only the hash is stored — never the document content. Your data stays private.
Notarization is $25–$200 per document. DocFila Verify is included free in Pro and unlimited on Business.
A notary witnesses an in-person signature and stamps the paper. DocFila Verify records a SHA-256 fingerprint and a hash-chained audit trail at signing time — no in-person meeting, no paper. The two answer different questions: a notary attests to who signed, the fingerprint shows whether the file has changed since. Verify is not a substitute for notarization where the law requires one. Pair both for maximum strength on high-stakes contracts.
Keep going with the document workflow that matches this page. Open the tool you need, then finish the file in DocFila.