What this service stores.

Stored to run the check

The requested endpoint or catalog target, route outcome, payment proof needed to bill a successful check, and replay fields that stop the same authorization from being used twice. Decision history may be written to an append-only log and anchored on Algorand MainNet. That log is public evidence, not a customer dossier.

Do not send

Seed phrases, wallet private keys, payment headers, or other people’s customer records. Do not email those.

Use and retention

We do not sell personal data. We do not use the check as an advertising profile. Logs and databases live on the systems that serve 402signal.com. Retention is as long as needed to operate billing, replay protection, and the public log.

To ask about data we hold, email ross@402signal.com. Do not send secrets to that address.