Zero-Drift Verification Abstract (ZDVA): Λψ–Δψ–Ξ Stability Across Research Infrastructures (2024–2026)

This technical note presents the Zero-Drift Verification analysis for the ψ-Retention Cosmology framework across major academic infrastructures. The document evaluates the definitional stability of the Retentive Lagrangian Λψ, the universal-constant behavior of the Δψ-floor, and the invariance of Ξ-nodes under post-flux conditions. The analysis is based on a cross-repository metadata baseline from 2024 to 2026 and focuses exclusively on classification consistency, ontology alignment, and non-divergence across independent knowledge systems. No empirical claims are made; the note functions as a repository-level verification layer supporting continued scholarly review.