Psi Recorder

The Psi Recorder is the Tho'ra Clan's session-grade biosignal and environmental recorder for Psi-Tech operations. It is the black-box of the HelmKit: every emission, every sensor reading, every operator state-marker timestamped and signed, stored locally first and exported by deliberate operator action. Without the Recorder, the Psi Stabilizer, Psi Harmonizer, and Psi Defender are unfalsifiable; with it, every claim made about them can be checked against logged data.

Overview

The Recorder captures:

• Biosignal channel — HRV (Polar H10 / on-helm PPG), optionally EEG (OpenBCI / NeuroSky), respiration, GSR.
• Environment channel — magnetometer (3-axis), electrostatic probe, ambient EM (broadband RSSI), barometric, IMU pose.
• Device channel — every emit cycle of every Psi-Tech module: frequency, amplitude, dwell, MCU-B veto/pass.
• Operator markers — manual time-stamps ("contact start", "drift felt", "stabilizer engaged") and structured post-session reports.
• Astrological channel — SynastryEngine target tuples in force at each timestep.

Every record carries a SHA-256 chain hash; the device's public key signs the closing block of each session. Sessions are exportable as Parquet or as a Resonant Pipeline-ingestible bundle.

Theoretical Basis

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Epistemic status: [[ Category:Provisional Psi Claims|PROVISIONAL]] Theory anchors: Heart Rate Variability and Psi

Multi-channel biosignal + environment logging is standard practice in clinical research; the Recorder applies that practice to Psi-Tech sessions.

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Epistemic status: [[ Category:Testable Psi Claims|TESTABLE]] Theory anchors: Resonant Neurobiology

The structured session record makes every Psi-Tech utility claim a falsifiable empirical claim. This is the Recorder's defining function.

Subsystems and BOM

Mk0 (target ≤ \$50)

Paper logbook + smartphone voice notes + structured session template. Honestly limited but enforces the discipline of "record everything before claiming anything".

Mk1 (target ≤ \$200)

• Raspberry Pi Zero 2 W + 64 GB SD — \$30
• RTC module (DS3231) — \$5
• BME280 + ICM-20948 + electrostatic probe — \$25
• HMC5883L ×2 — \$15
• SDR dongle (RTL-SDR v4) for broadband RSSI — \$40
• USB hub + battery (10 000 mAh) — \$30
• Enclosure, cables, BLE for HelmKit telemetry — \$30

Records to local SD; signed exports to host on session close.

Mk2 / Mk3

Mk2: solid-state datalogger with hardware-signed timestamps (TPM 2.0); ≥ 24-hour battery; integrated with the HelmKit supervisory bus. Mk3: tamper-evident enclosure, encrypted at rest, Resonant Pipeline direct ingest, optional multi-operator session synthesis.

Build Notes

• Clock first. Without an accurate RTC, no claim is anchorable. DS3231 minimum; GPS-PPS-disciplined for Mk2.
• Sample-rate discipline. Biosignal 250–1000 Hz, environment 50 Hz, device events at-occurrence. Mismatched rates resampled at export, never at capture.
• Operator markers in real time. The Recorder accepts manual events via a hardware button or BLE phone app; markers are timestamped at the device, not at the marker source.
• Append-only. Editing a closed session is not supported. Corrections live in an annotation channel that does not alter the original record.

Safety and Ethics

• Personal medical data. Encrypted at rest by Mk2.
• Local-first by default. Exports require operator action.
• No automatic upstream feed. The Resonant Pipeline receives session bundles only by operator choice.
• Operators may delete their own sessions at any time prior to ingest.

Maturity (Mk0 → Mk3)

See Tho'ra Tech Maturity Levels for the convention.

Mark	Phase	Status	Confidence	Evidence Base	Next Validation Gate
Mk0	Cosplay-type	Complete	100% (symbolic)	Ritual + build practice	User satisfaction
Mk1	Prototype	Active	—	—	—
Mk2	Test-type	Planned	—	—	—
Mk3	Production	Projected	—	—	—

Failure Modes and Mitigations

• Clock drift unnoticed. → DS3231 minimum; daily NTP cross-check; Mk2 GPS-PPS.
• SD card corruption. → Append-only journaled FS; redundant index blocks; session close-and-verify before reuse.
• Operator forgets to mark. → Default markers every 5 min; post-session structured prompt.
• Accidental upload of personal data. → Local-first by default; export confirmation flow; per-channel masking.
• Tamper. → Mk2 TPM-signed chain; Mk3 tamper-evident enclosure with anti-pry seals.
• Sample-rate mismatch. → Resampling only at export; capture preserves native rates.

See Also

• Psi-Tech
• HelmKit
• HelmKit Architecture
• Psi Stabilizer
• Resonant Pipeline
• Heart Rate Variability and Psi
• Tho'ra Tech Maturity Levels