Privacy

Last updated 8 October 2026

Reins (app.reins.one) shows trading records that live on a public blockchain. We keep as little about you as we can. We don't run ads, analytics or tracking cookies, and we don't sell anything about anyone.

What is public by design

Arena records live on Circle's Arc blockchain, which anyone can read. That includes your wallet address, the calls you lock and reveal, and any name, bio or link you set on your profile. Anything written there stays in the chain's history and can't be deleted, by you or by us, so don't put anything private in a profile.

Signing in

• With a browser wallet (MetaMask, Rabby and others): we see your wallet's public address. Your keys never leave your wallet.
• With Google: Google confirms who you are to Circle, which keeps a wallet on Arc for you (a Circle user-controlled wallet). Our server passes requests between your browser and Circle and stores nothing about you. Google's and Circle's own privacy policies cover what they handle.

Which account you're signed in with is kept in your own browser (local storage), not on our servers. Signing out removes it.

What stays in your browser

When you lock a call on this site, the details needed to reveal it later (including a secret that hides it, and any stop and target you set) are kept in your browser's local storage. Clearing your browser's data removes them.

What our servers keep

• Abuse limits. To keep the free gas relay and sign-in from being abused, we count requests per IP address in short-lived counters (hours to a day) and then discard them.
• Marketplace waitlist. Joining the marketplace waitlist stores your wallet address, the choice you made and the time; nothing else.
• Hosting logs. Our host, Vercel, keeps standard request logs (such as IP address, page and time) for a short period.

Other services your browser talks to

Pages load fonts from Google Fonts and live prices from Hyperliquid's public API, and read the Arc blockchain through its public RPC. Each of them sees your IP address when your browser contacts it.

Questions

Open an issue at github.com/onreins/arena. If this policy changes, the date above changes with it.