Divergence experiment

Browser Identity Lab

FingerprintJS plus seeded rendering, GPU scheduling, CPU/WASM, WebCrypto, display, media, AI-compute, and cross-realm probes. No cookies or browser storage are created.

Measurement label Loading FingerprintJS…

Advanced probes

Hardware and execution signals

Identity fields are compared exactly. Timing samples are exported separately for statistical analysis.

Probe	Status	Identity summary	Metrics	Duration

Visitor ID —

Confidence —

Public IP —

Changed components —

Post-measurement workload

GPU benchmark v2

Waiting for measurement

Render index —

Compute index —

Max variability —

Execution —

Runs after the observation is saved, normally in a Web Worker. Version-specific throughput is diagnostic only and excluded from device matching and scoring.

Render tier	Iterations	Median batch	Draws / second	M iteration-pixels / second	Variability

Current measurement

User-agent profile

Waiting for measurement

—

No user agent collected

—

Observed sources

HTTP request header is compared with the main window, worker, and sandboxed iframe.

Experimental evidence

Browser automation

Waiting for measurement

Evidence points —

Tool artifacts —

WebDriver —

Detected signals —

Evidence only. Absence of artifacts does not prove human control, and this profile is excluded from scoring.

Signal	Result	Strength	Evidence

Server memory

Measurement history

Each row is compared with the immediately preceding measurement.

#	Label	Client	Visitor ID	Confidence	Public IP	Changed	Time

Current measurement

Fingerprint components

Duration is diagnostic only and is excluded from the server-side comparison.

Component	Value or error	Duration