Privacy
Last updated 20 October 2026
dtn.bsvkey.com is run by Embryo Space Inc., doing business as
BSVKey ("we"). It describes an open-source reference implementation for data custody on
delay-tolerant networks, and hosts the contact plan studio (/plans/) and
the offline pay page (/radio/). The short version: no accounts, no forms,
no cookies and no analytics, and your keys stay on your device.
The offline pay page (/radio/)
- Your key stays on your device. A key, recovery phrase or wallet file you use is
read and used to sign in your browser and is never sent to us. If you open a wallet, the
public address is remembered in this browser's local storage, and the key is kept only in
this tab's session storage until you lock or close the wallet, close the tab, or leave it
15 minutes without a click or key press. A recovery phrase is never stored.
- Camera and microphone are used only when you choose Scan or Listen, to read QR
codes and sound in the page itself. Nothing is recorded or uploaded.
- Nearby connects two devices directly over your own Wi-Fi or hotspot. It uses no
server of ours or anyone else's, so payments sent this way go only to the other device.
- Text messages are written by the page and sent by your own phone's messaging app,
to the number you choose. Your carrier and the recipient see them.
- Network calls happen only when you ask: Broadcast now sends your signed
transaction from your browser to GorillaPool's ARC service, and Get my coins asks
WhatsOnChain (a public Bitcoin BSV explorer) for an address's coins. Those services see your
IP address and what is sent or looked up, under their own policies.
- Stored on your device (local storage): settings such as your receiving address and
whether the helper is shown, plus payments you received and have not yet sent on, so they are
not lost. Clear them by clearing this site's data in your browser.
What is public
A payment, once broadcast, is a Bitcoin BSV transaction: the addresses, amounts and time are
public and permanent, and nobody can change or erase them.
The rest of the site
- No accounts, no sign-in, no forms, no cookies and no analytics. The contact plan studio
computes orbits in your browser.
- Google Fonts: pages load their typefaces from Google (fonts.googleapis.com and
fonts.gstatic.com), so Google receives your IP address and browser details, under Google's
privacy policy. The /radio/ page loads no outside fonts.
- Video: the walkthrough video on the home page loads from GitHub
(raw.githubusercontent.com) when you press play.
- Hosting: our host, Netlify, processes your IP address and request details to serve
the site and protect it, and may keep short-lived logs. We do not use them to build profiles.
- Links you click, such as GitHub, WhatsOnChain, the IETF and other BSVKey sites, open
those services under their own policies.
Email
If you email us, we receive what you send and use it to reply. We do not sell or share it.
What we do not do
We do not sell or share your data, we do not build profiles, and we do not use it to train
AI models. We never hold your keys or funds.
Your choices and rights
Depending on where you live you may have rights to access or delete personal data we hold.
We will honor them for the data we actually hold, such as emails you sent us.
Contact
Questions about this policy: embryospace@gmail.com.
If this policy changes, we will update this page and its date. See also the terms of use.