Vektor T13 - Floating Point Browser Fingerprint

Offline single‑file checker for floating‑point determinism and WebAudio stability tests.

By: Vektor T13 Technologies
Developed by: Dmytro Momot
Site: https://detect.expert

Overview

This project is a standalone HTML page that runs locally in your browser and does not make any network requests (CSP: connect-src 'none').

It generates a reproducible “profile” you can export to JSON and compare before/after changes (e.g., overclock/undervolt, driver updates, thermal changes, BIOS tweaks).

Features

Floating‑Point (FP)

• Deterministic IEEE‑754 sanity checks (double + float32 via Math.fround)
• Non‑associativity check and optional raw hex dumps (for deeper inspection)
• Stress invariants:
  • sin²(x) + cos²(x) ≈ 1
  • exp(log(y)) ≈ y
  • sqrt(y)² ≈ y
  • 1 / (1 / y) ≈ y
• Micro‑benchmarks (median runtime, ns/iter)

WebAudio

• AudioContext capability + parameters (sampleRate, latency buckets, etc.)
• Realtime graph probe (quiet oscillator → analyser)
• OfflineAudioContext render of a fixed audio graph:
  • oscillator → filter → waveshaper → compressor → gain
• Buffer metrics (mean/rms/peak/zero‑crossings) + optional checksum

Reports

• Export current run as JSON
• Import a previous JSON report and show a diff (only changed keys)

Usage

1. Save the file as index.html (or any name).
2. Open it in a browser (Chrome/Edge/Firefox).
3. Click “Запустить тесты”.
4. (Optional) enable “Детально (raw значения)” for deeper diagnostics.
5. Export JSON, repeat after system changes, then import to compare.

Security / Privacy

• Runs fully offline.
• No external assets, no fetch/XHR/WebSocket (blocked by CSP).
• Everything stays on your machine unless you manually share exported JSON.

Notes

Some browsers require a user gesture to start/resume AudioContext — the “Run tests” button satisfies that requirement.

Credits

© Vektor T13 Technologies — https://detect.expert
Developed by Dmytro Momot