This work presents the DeathScanner V10 Ultimate—a parallel, industrial-grade multi-modal biosignal integration framework designed to decode the core mystery of life and death: identifying the "unique latent variable" (defined as the soul/consciousness) that distinguishes living from non-living entities. Rooted in the philosophy of "hypothesis-free exclusion" and "all is information flow," the framework integrates five core biosignal modalities (spectroscopic, electrophysiological, temporal dynamics, macroscopic physical quantities, informative indicators) and advanced algorithms (interpretable VAE, NMF, Isolation Forest, multi-view factor model) to systematically detect, decompose, and validate the missing variable in deceased organisms, with the ultimate goal of enabling universal immortality (eternal physical youth + indestructible soul). The technical architecture features end-to-end parallel processing: sensor-driven data acquisition (supporting real/synthetic sensors), multi-modal vectorization, material decomposition, dark residual detection (for unexplained latent variables), vector indexing, and auditable ledger recording. Key innovations include: 1) A 0.88 cosine similarity-based greedy clustering algorithm to merge redundant signals into "seed nodes" for latent variable extraction; 2) Explainable VAE with sparse priors to map latent variables back to measurable features, ensuring scientific verifiability; 3) Bootstrap stability evaluation for material basis components, with a 0.75 threshold to filter reliable signatures; 4) Rigorous audit chains and replay mechanisms to guarantee reproducibility. Validated through four experimental stages (calibration, small-scale blind measurement, cross-scale replication, causal intervention), the framework achieves high precision (energy conservation error <5.415×10⁻³) and cross-species consistency. It rejects the notion of soul as neural firing or stream of consciousness, instead treating it as a testable information pattern—once deconstructed and synthesized, it can be injected into organisms to reverse death or prevent aging. Despite ethical and technical challenges, the framework transforms philosophical inquiries into executable science, offering a path to humanity’s age-old pursuit of immortality.