Instrument 07 / Local Browser Probe
Consent-controlled diagnostic
This station creates a technical calibration record for this browser and device. Nothing is measured until you explicitly consent and press Start. Nothing is submitted until you review the result and press Submit.
Read before operating
The optional device label exactly as entered; navigator properties, user agent, languages, platform, hardware concurrency, device memory, touch capability, connection hints, and User-Agent Client Hints including high-entropy values when the browser provides them.
Screen, window, pixel ratio, visual viewport, orientation, timezone and UTC offsets, pointer/hover capabilities, color and contrast preferences, reduced-motion preference, and other listed CSS media-query results.
WebGL vendor, renderer, versions, limits and extensions; SHA-256 hashes of locally rendered canvas text and geometry; and an OfflineAudioContext signal aggregate and SHA-256 hash. Raw canvas images and audio samples are not retained.
Detection results for a fixed list of common fonts, plugin and MIME type metadata, audio/video codec support, storage quota estimates, CSS system-font computed styles, and the browser keyboard-layout map when available. Layout values describe the configured keyboard; no key presses or typed content are observed.
Media-device kind counts without labels or permission requests, battery status, WebGPU adapter information, and keyboard layout metadata, only when those APIs are available. Unsupported fields are recorded as unavailable.
Up to 600 trusted pointer or touch move/down/up events inside the marked pad: relative time, normalized x/y position, pointer type, buttons, and pressure. It never records typed content, key values, or activity outside the pad.
Text typed outside the optional device-label field, key events, clipboard, browsing history, cookies, files, location, media streams, media-device labels, or interaction outside the calibration pad. Submitting makes a normal request to this site, so the server may receive standard request metadata such as your IP address. A token supplied after #token= is removed from the address and sent in the submission header.
Operator authorization
No data is collected on page load. Starting does not submit.
Live sequence
Move, press, and release inside this pad for the remaining time. Touch and pen input are welcome.
Pointer and touch events are captured only inside this boundary. Keyboard input is ignored.
Initializing. No network request is being made.
Local review / not yet submitted
Unavailable
The calibration record is held in this page only. Press Submit to send it to POST /api/fingerprints, or close/reload the page to discard it.
Awaiting operator submission.
Server receipt
Retain the deletion token now. You will need it to request deletion of this record, and it may not be shown again.