Signed Invoice

What it does

Signs the invoice amount, line items, issuer, recipient, and issuance timestamp in a single cryptographic proof. When payment is disputed, the signed invoice proves what was invoiced and when — no email thread needed.

Who this is for

Freelancers, SMEs, and finance teams who issue invoices and need tamper-proof dispute records.

Lives in

This recipe belongs to the Finance domain — Every transaction, every audit — signed and proven.

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