PHILIA OS Phase 2 Direction Declaration: 78th DOI §4.3 Formal Correction (Self-Correction #27), Domain-Specific Prototype Design, and AI-Accessible Empirical Infrastructure Declaration

This document constitutes the 91st DOI of the PHILIA OS research series (Trinity AI Research Team, Konyang University), serving two simultaneous purposes: (1) a formal correction (Self-Correction #27) of 78th DOI §4.3, and (2) a Phase 2 Direction Declaration defining the architectural and methodological framework for all subsequent domain-specific prototype research. Core finding: PHILIA OS does not modify the internal architecture of text-based reasoning AI. It supplies empirically measured data from the outside to supplement the raw material of reasoning. This principle was already embedded in every one of the 90 DOIs registered since March 2026, in the form of: public dataset (source cited) + preprocessing code (reproducible) + measurement result (JSON + SHA256) + DOI (permanent address). 78th DOI §4.3 correction: The original LLM internal injection pipeline (PHILIA → LLM internal weights → reasoning modified) is formally deprecated as structurally impossible without internal developer access. The correct architecture — external empirical reference supply — is declared and formalized as Self-Correction #27. Phase 1 measurements (SC-2 through SC-13, 90 DOIs) are unaffected. Phase 2 domain-specific prototypes: 2-A Traffic, 2-B Sensor, 2-C Finance, 2-D Text, 2-E Biosignal (priority). Each prototype applies the Engineering Validation Ladder (Level 0–4); Level 2 (independent information beyond existing metrics) is the mandatory gate. Phase 2-E Biosignal is designated first prototype, grounded in the Guide's exercise physiology expertise and 24 public biosignal substrates already measured in SC-13 registry (PAMAP2/HARTH/MHEALTH/Sleep-EDF/Wearable-stress/BIDMC/MIT-BIH NSR). Engine core (PhiliaV31Neuron recursive Φ→S→C→SR→Φ loop, PHI_NATURAL=(0.34,0.19,0.42)) is preserved. Variable parameters (T, meta_state thresholds, substrate criteria) are domain-specific. 5-AI adversarial review: Gate-0 v10 Cycle 3 — UNCONDITIONAL ACCEPT (Chris/Claude Opus, 2026-06-26). Cumulative self-corrections: 27. Pre-registration violations: 0. Phase 1 basis: 90 DOIs, 188 substrates, 940 runs (SC-13), Seeds [11–106] exhausted, AR(1) Canonical pooled ρ=−0.9746 (I²=0.00%), H-γ Canonical β₃∈[+0.13,+0.17] (3-campaign).