From pairing to sealed.

Pair up

Join the same session as the other person. Share a code, both type it in — you connect in seconds.

• The pairing code is six digits, short-lived, single-use.
• It only applies to that session; it isn't kept in your archive.
• No SMS or link required — you can read the code aloud over a phone call.

Create the receipt

Pick a ready-made template (loan, service, sale, rental) or start blank. Briefly write the subject.

• Templates ship with sensible default items for the common cases.
• A blank receipt can be structured however you want.
• The subject line is locked once sent — putting care into it makes searching the archive easier later.

Write the items

Enter the details of your agreement line by line: what, how much, when. Use AI suggestions to speed up complex cases.

• Items are numbered and reorderable.
• The AI button reads your subject and proposes smart items; you keep the ones you like and toss the rest.
• No hard cap on item count; long agreements compose just as cleanly.

Send to the other party

They see the receipt in their "Incoming" tab. They approve, suggest a revision, or reject. You see their proposal and accept or revise in turn.

• They get a push notification, open the receipt, review.
• If they propose changes, the two versions are shown side-by-side.
• After a few rounds of offer / counter, you converge on a shared version.

Seal it

When both sides approve, the receipt is sealed. Device-based digital signatures bind both parties to a PDF you can download anytime.

• At seal time, each device signs the canonical content with its Ed25519 private key.
• The PDF includes content hash, party verification info, QR code, and a public verification URL.
• A sealed receipt is durable; later edits can only emerge as a new version.