Label-Free Ordinal Biosignal Biomarkers: Integrating the RECD Tick ΔT = g(τ_s)·|τ_s| from Pre-VF Holter Concordance toward Wearables and ICU Monitoring

Wearable medical devices and intensive-care monitors increasingly rely on supervised labels to train alarms. Labels are scarce, delayed, and often unavailable when a bedside system must decide whether relational structure among biosignal modules has already reorganised. Physics-Informed Ordinal AI (PIO-AI) and the Systemic Tau stack supply ordinal concordance, absolute concordance change with cancellation index κ, beyond-pairwise residuals (Res_pair / excess³), and the Discrete Extramental Clock (RECD) whose laboratory tick takes the gated form ΔT = g(τ_s)·|τ_s|. An archived Holter deposit examined sign concordance of the Lean RECD tick contrast and Level-3 excess³ on ten pre-ventricular-fibrillation (pre-VF) Sudden Death Database recordings under a stated protocol (DOI 10.5281/zenodo.23383640). That deposit is exploratory and archival: it reports protocol-bound concordance counts, not a cleared diagnostic device, wearable product claim, or ICU performance. This preprint treats successful extension of such concordance studies under pre-registered protocols as a research door—not a regulatory shortcut—toward integrating the regulated RECD tick as a label-free algorithmic biomarker candidate in wearable and ICU design. The contribution is translational and cautionary. Structure estimators are separated from alarms and from clinical decisions; wearable/ICU design constraints and a pre-registration template are stated before any bedside claim. Parallel ordinal-control translation in financial AI (DOI 10.5281/zenodo.23636566) is cited only as an architectural cousin. No new patient outcomes, sensitivity/specificity figures, or device clearances are invented or implied. This record contains the English article (PDF, DOCX, Markdown), a Spanish summary, and CITATION.cff. Related: Holter 10.5281/zenodo.23383640; PIO-AI 10.5281/zenodo.23633230. Text under Creative Commons Attribution 4.0 International. No funding declared. Version 1.0.0 is the cleaned final manuscript with continuous academic prose, Figure 1 (monitoring planes A/B/C), and Figure 2 (schematic synthetic RECD tick trajectory — illustrative only, not patient data). Regulatory non-claims preserved. Prior v0.1.0 remains available under the same concept DOI.