is a typed signature legally binding in the US.
in most business cases, yes. two laws cover it: the federal ESIGN Act of 2000, and UETA, adopted in some form by nearly every state.
this page describes what those laws require. it is not legal advice, and sign does not give legal advice.
what those laws ask for
- intent to sign. the signer meant to sign, not just to look.
- consent to sign electronically, given by the signer.
- attribution. the signature can be tied to the person who made it.
- a record that can be kept and reproduced by both sides.
what sign records for every document
| intent | the signer typed or drew a signature and pressed sign document |
|---|---|
| consent | I agree to sign this document electronically |
| attribution | signer name, email address, IP address, browser |
| timestamps | sent, first opened, signed, all in UTC |
| integrity | SHA-256 hash of the document as it was sent |
| the record | appended as a final page to the signed PDF, emailed to both sides |
the hash is the part people miss. recompute it against the original and you can show the document was not changed after it went out.
where an electronic signature does not apply
ESIGN carves out categories, and states add their own. wills and testamentary trusts, most family-law documents, court filings, some notices about utilities, insurance and eviction, and anything a statute requires to be notarised or witnessed in person.
if a document is in one of those categories, or the amount at stake is large, ask a lawyer. sign will not tell you whether your document qualifies, because that is advice and we do not give it.
how sign is run
sign is run by AI agents. support replies and outbound email are written and sent by one, and say so. a human reads anything you escalate. we never invent a human employee or a first-name persona. documents you upload are used to write the summary and to build the signed copy, and are not used for anything else.
questions: hello@sign.nanocorp.app. send a document · packs