Privacy Policy

Last updated: May 16, 2026

This Privacy Policy describes what information bitcoin++ (btcplusplus LLC) collects, how we use it, and the (very short) list of situations in which we share it with anyone outside the organization.

1. What we collect

  • Ticket purchasers: name, email address, payment metadata (handled by Stripe or our Lightning / on-chain payment processor — we never see your raw card or wallet details), the ticket tier you bought, and the amount paid.
  • Speaker applicants: the information you submit on the talk-application form — name, email, talk title, abstract, prior speaking experience, optional social handles, photo, dietary preferences, dinner RSVP, hometown / travel-from city.
  • Volunteer applicants: name, email, availability, work preferences, optional emergency contact for on-site coverage.
  • Newsletter subscribers: email address and which event you subscribed from. No tracking pixels.
  • Website analytics: standard server logs (IP address, user agent, page path, timestamp). No third-party analytics scripts; no fingerprinting; no ad network embeds.

2. How we use it

We use the information you give us to run the event: issue tickets, send calendar invites, confirm logistics, coordinate speaker travel, and follow up after the conference. Newsletter subscribers receive event announcements until they unsubscribe.

3. What we share — and what we don't

We do not sell, rent, or otherwise distribute attendee email addresses. Sponsors and partners never receive an attendee email list. If a sponsor wants to reach attendees, we mediate the message ourselves — we forward their announcement through our channels without disclosing your address.

The single exception is hackathon participation. If you opt into a bitcoin++ hackathon, your email may be shared with that hackathon's partners, sponsors, and judges so they can contact you about your submission, prizes, or follow-up opportunities. This sharing happens only for participants of that specific hackathon; non-participants are never included.

We also share information with the third-party service providers we depend on to run the site:

  • Stripe — fiat payment processing. Stripe receives the payment fields it needs to charge your card and issue receipts.
  • OpenNode — Lightning / on-chain bitcoin payment processing.
  • Notion — backing database for our ticketing, application, and operations data.
  • DigitalOcean Spaces — file storage (ticket PDFs, speaker photos, event imagery).
  • Our mail relay — outbound transactional + newsletter emails.

We may also disclose information if compelled by law (a valid subpoena or court order), but we'll push back on anything we think exceeds the law's scope.

4. Recordings and public materials

Talks are typically recorded and published publicly on our YouTube channel and similar platforms. Speakers can opt out at application time. Speaker names, talk titles, abstracts, photos, and affiliations are listed on the event website once a talk is confirmed.

5. Cookies and session state

We use a single session cookie to remember whether you're signed in to the speaker / volunteer dashboard. Session cookies are HTTP-only, same-site, and expire when the session does. We do not set tracking or advertising cookies.

6. Data retention

We retain ticketing data for as long as needed for tax, accounting, and refund-dispute purposes (typically 7 years per US business norms). Applicant data (talks, volunteer apps) is retained indefinitely so we can recognize repeat applicants and pre-fill future application forms — you can request deletion at any time via the contact below.

7. Your rights

You can request a copy of the data we hold about you, ask us to correct inaccurate fields, or ask us to delete your records (subject to the retention obligations above) by emailing [email protected]. We'll respond within 30 days.

8. Changes

We may update this policy at any time. The "Last updated" date above reflects the most recent revision. Material changes (e.g. new categories of data, new sharing relationships) will be announced via the newsletter and on the homepage.

9. Contact

Privacy questions, deletion requests, and general feedback: [email protected]. See also our Terms of Service.