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Glossary

The terms behind private payments and private AI, in plain language.

Access key
The random secret in your browser that identifies your credits. The server stores only a hash of it.
Attestation
Signed evidence from protected hardware describing exactly what software is running, checked before sending data.
Backup key
The secret that encrypts your chat backup. It never leaves your device.
Confidential computing
Running software in hardware-protected memory that the machine's operator can't read.
Confirmation
A new block on the chain after your payment. Credits are added after a few.
Credit
ZCode's prepaid unit. 1 credit = £0.10. Each answer holds 1.50 credits, or more for large documents, and charges what it used.
Recovery code
A code starting with zr1 that carries your access key and backup key. The private key to your session.
Shielded address
A Zcash address whose payments hide the sender, receiver and amount using zero-knowledge proofs.
Transparent address
A Zcash address whose payments are fully public, like Bitcoin.
Viewing key
A Zcash key that can see incoming payments but can't spend them.
ZIP-321
The Zcash standard for payment requests: the format behind an invoice's QR code.
Zero-knowledge proof
A way to prove a statement is true without revealing the data behind it.