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H33 H33 / Session / Metadata Exposure Analyzer
H33 Session · Metadata Exposure Analyzer

Your calendar invite leaks more than you think.

Paste any Zoom, Teams, or Google Meet invite below. We’ll count the metadata fields it exposes about your meeting — subject, attendees, organizer, recurrence, vendor extensions, and more — and show you what an H33 Session reveals instead.

100% browser-side · nothing uploaded · nothing logged
① Calendar invite

Paste the raw .ics contents, or drop a .ics file.

Auto · 12s loop

No data leaves your browser. The parser runs locally; we don’t POST your invite anywhere.

② Exposed fields
Metadata Exposure
0 / 15 fields
Detected platform: —
H33 Session
1 / 15

Your invite

Exposed to anyone holding the .ics

H33 Session

Same meeting · verifiable handle only
③ Sealed receipt
PQ Session Handle (74-byte, base32)
Demo handle only — real Session Receipts are issued by H33 verifier services.

The meeting still happens. The metadata doesn’t.

An H33 Session emits a verifiable receipt — proof that the meeting was scheduled, who was authorized to join, and that it occurred — without revealing the subject, the attendee list, the recurrence cadence, or the organizer’s domain. The handle is independently verifiable, offline, even if H33 disappears.

Three receipts per session: Scheduling · Attendance · Completion. Each is a .h33pqv.json artifact you can drag into the public verifier.

Why metadata matters

An organizer email + attendee list + recurrence rule reveals deal flow, M&A activity, litigation cadence, executive routines, and outside counsel relationships — before a single word of the meeting is spoken.

Why a handle is enough

The 74-byte handle encodes authority binding, instruction tag hash, recipient root, and a timestamp anchor. Authorized holders resolve the rest. Everyone else sees a handle and a time window.

Why offline-verifiable

The handle is self-verifiable with the H33 verifier WASM. No API call to H33. No vendor dependency. Receipts survive even if H33, your auditor, or your scheduling tool is gone.