Privacy

OpenNum is built to be privacy-preserving and non-custodial. We never see or store your private keys, and we never ask for your seed phrase.

What we store

• Wallet address — the public Bitcoin address you connect and sign with. This is already public on the blockchain.
• Profile data you submit — display name, bio, links, and for-sale flag/notes. All of this is intended to be public.
• Public messages — stored and displayed publicly, and may be permanent.
• Minimal technical metadata — used only for security and rate-limiting.

We do not collect your name, email, or any off-chain personal identity, and we never request your private keys or seed phrase.

Third parties we use

• Unisat (wallet) — you authorize and sign through your own wallet extension; we only receive your public address and your signatures.
• Supabase (database hosting) — stores the public registry, profiles, and messages.
• Cloudflare Web Analytics — privacy-first, cookie-free, aggregate traffic statistics. It does not use cookies, does not fingerprint visitors, and collects no personal data — which is why OpenNum shows no cookie banner.
• ordinals.com / Bitcoin indexers — queried to verify inscription ownership.

Cookies

OpenNum does not use tracking cookies.

Your data is public by design

Because OpenNum is a public identity protocol, the information you publish is visible to anyone and may be cached or indexed elsewhere (search engines, archives, the blockchain). Removing it later may not erase copies that already exist.

We don’t sell your data

OpenNum does not sell or rent your data to anyone.

Changes

We may update this policy. When we do, the “last updated” date above will change.

Contact

Questions? Reach us on X at @OpenNumBTC.