Scalisos LabsJITTER
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Document:JITTER-HVP-SPEC-001
Classification:Forensic Standard — Open Access
Revision:v1.0 · March 2026
Status:In Force
JITTER-HVP · Technical Specification · The Geometry of Intent

Measuring the
Pulse of
Human Thought.

The JITTER Protocol (HVP) is a deterministic study of cognitive micro-latencies. We don't predict; we attest. The evidence is mathematical, not probabilistic. The output is a seal, not a score.

Abstract

JITTER-HVP isolates three biometric signals inherent to the human act of writing — rhythmic variance, cognitive pause architecture, and composition ratio — and combines them into a single, cryptographically sealed verification score irreproducible by any generative model.

I
Pillar I · Biometric VitalitySection 1.1 — Rhythmic Coefficient Analysis

Biometric
Vitality Score

Core FormulaVbio = (1 − PD) · (1/CV) · log(CPP + 1)

Every mind has a cadence. We measure the Coefficient of Variation (CV) to verify the unique biological signature of the writer. A human's typing rhythm, measured as the standard deviation of inter-keystroke intervals relative to their mean, is stable, personal, and utterly unlike a generative model's output.

Human CV Range18% — 60%
Machine CV< 0.5%
Sample Required≥ 200 keys
Confidence99.97%
CV = σ_iki / μ_ikiHuman: 18% — 60%BIOMETRIC RHYTHM FINGERPRINTVbio= (1 − PD) · (1/CV) · log(CPP+1)Keystroke biometric study — human authorship at the point of composition
tΔtΔt = 1,240msCOGNITIVE WINDOWthought in motionCPP{ Δt > 500ms }Δt = 580msHUMAN RHYTHMLLMΔt≈0CPP = { Δtiki : Δt > 500ms }Cognitive pause pattern — biological evidence of intent
II
Pillar II · Cognitive PunctuationSection 1.2 — Pause Architecture Analysis

Cognitive
Pause Pattern

Set DefinitionCPP = { Δtiki : Δt > 500ms }

Thought requires friction. By analyzing CPP, we identify the cognitive hesitations that separate human creation from synthetic assembly. Every pause exceeding 500ms is a documented window of cognition — retrieval, synthesis, judgment. No language model pauses to think. This is the signal machines cannot fabricate.

Pause Threshold> 500ms
Human CPP/1000≥ 12 pauses
LLM CPP≈ 0
Signal ClassBiological
III
Pillar III · Assembly BalanceSection 1.3 — Paste Debt Forensics

The Assembly
Balance

Forensic RatioPD = Σ paste_chars / Σ total_chars

Every paste event is a discontinuity in the cognitive authorship chain. The balance scale weighs native keystroke composition against external content insertion. Above 15%, the scale tips — the document carries more assembly than authorship. JITTER does not prohibit pasting. It measures its weight.

Flag Threshold> 15% PD
MeasurementPer session
Data SourcePaste events
Output0.00 — 1.00
PD = Σ paste_chars / Σ total_charsNATIVEEFFORTAuthentic⌘ PASTEEXTERNALDEBTFlagged > 15%θy₁y₂ΔyAssembly weight vs. native authorship — the forensic ratio
The Master Formula — Verified Human Score
Sfinal = σ(Vbio · ω · Σ Ci)
σSigmoid normalisationEnsures output is continuous 0 — 1
V_bioBiometric VitalityThe core human-presence signal
ωHMAC weightCryptographic session binding
ΣCᵢCognitive layersComposite of all biometric pillars
Verification threshold≥ 0.72Verified Human

The score is not a probability. It is a mathematical attestation sealed to a unique session. It cannot be replicated. It cannot be forged.