Events

Private Events.Public Fun.

Organize and attend encrypted events using your Hat identity. Anonymous RSVPs, secure check-in, and zero personal data exposed — ever.

Get the App 🛡 Threat Model

In the App

Browse & Organize

Discover nearby events or create your own. Everything runs through your Hat identity — your real name and contact info stay private.

Core Capabilities

Events, Reimagined for Privacy

Every event detail is encrypted. Attendees are anonymous. Organizers stay in control without collecting personal data.

Encrypted Event Details

Event name, location, description, and time are end-to-end encrypted. Only confirmed attendees and the organizer can see the full details.

Anonymous RSVP

Attendees RSVP using their Hat identity. The organizer sees Hat codes and status — never real names, emails, or phone numbers.

Secure QR Check-In

Arrive at the event and check in with a one-time QR code tied to your Hat. No scanning of IDs, no sign-in sheets, no data collection.

Full Organizer Tools

Set event details, manage capacity, approve or deny RSVPs, send encrypted announcements, and track attendance — all privacy-first.

Process

How Events Work

From creation to check-in, your identity stays protected at every step.

Create Event

Set the name, date, location, and capacity. All details are encrypted. Choose whether the event is public or invite-only.

Share & Invite

Share the event link or invite specific Hats. Attendees see event info only after joining — no previews for outsiders.

RSVP Anonymously

Attendees confirm using their Hat. Organizer sees attendance count and Hat codes. No personal information changes hands.

Check In Securely

At the door, scan a one-time QR code from your app. Verified instantly — no name lists, no ID checks, no paper trails.

Applications

Where Events Shine

Any gathering where attendee privacy matters.

Corporate Meetings

Host internal events where employee attendance is tracked by Hat — no personal email lists or external sign-up forms.

Conferences & Talks

Run conferences where speakers and attendees connect through Hats. Networking without exposing personal contacts.

Community Meetups

Organize local gatherings where members RSVP anonymously. Build community without building a surveillance database.

Workshops & Classes

Educational sessions with encrypted enrollment. Students participate under their Hat — no personal data on file.

Support Groups

Sensitive gatherings where anonymity is critical. Attendees confirm presence without revealing identity to other members.

Social Gatherings

Parties, game nights, and casual events where you control who knows you attended. No social media check-ins required.

🛡 Threat Model

What We Enforce

Events are built on the same zero-knowledge architecture as all City of Hats features.

Enforced by Architecture

End-to-end encrypted event details
Hat-only identity for all participants
One-time QR codes for check-in
No personal data collected at any step
Organizer cannot see attendee real identities
Encrypted announcements and updates

Never Allowed

No real name or email required to attend
No attendee data shared with third parties
No location tracking of attendees
No unencrypted event metadata on servers
No cross-event identity linking

No system is invulnerable. Stating what we defend against — and where our boundaries are — is more credible than claiming absolute security. Learn More →

Platform

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