🍪 Invoice Notary

Prove an e-invoice existed, unchanged, at a point in time. Your file is hashed in this browser and never uploaded; only its SHA-256 goes on Cookie Chain.

1. Wallet

Not connected.

Need COOK for the fee? Bridge it from Solana at the Cookie Chain Bridge. One notarisation costs —.

2. Notarise an invoice

3. Verify a file

Activity

—notarisations
—today (UTC)
When (UTC)SHA-256Transaction