Every month, the same ritual. Employees dig through Gmail looking for receipts. Screenshot a Stripe charge. Forward a Notion invoice. Chase down that AWS bill buried in 47 unread emails.

Then accounting sends the follow-up. “We’re missing your October receipts.” The spreadsheet grows. Reimbursements take weeks.

This is broken. Your inbox already has the proof. Cryptographically signed by the vendor’s own mail server.

ZVoice reads the DKIM signature. Generates a zero-knowledge proof. Submits it onchain. The contract auto-approves. Payment hits your wallet.

No PDFs. No spreadsheets. No “please resubmit.”

Email arrives. Money lands.