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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: —
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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.

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 verification matters

The handle is designed to be self-verifiable with the H33 verifier WASM, with no API call to H33 and no vendor dependency, so that receipts outlast H33, your auditor, or your scheduling tool (not yet available for production receipts).