I15. Scientific Status of the First External Validation Architecture of Vitology: What Is Established, What Remains Candidate, and What Evidence Is Still Required?

This article formulates the scientific-status architecture of the first external validation program of Empirical Vitology developed in I0-I14.

The preceding articles established preregistration, observability and identifiability requirements, uncertainty treatment, trajectory analysis, recovery and reserve constructs, physical-cost analysis, future viable continuations, Synchroauthenticity, the Norm of Harmony, cross-domain predictive testing, decision-value testing, external battery test environments, intra-domain replication, biological transfer to sepsis intensive care, and integrated cross-domain evidence evaluation.

However, methodological construction of a test does not constitute a positive empirical result.

I11, I12, I13, and I14 explicitly distinguish test architecture from completed empirical support. I14 states that its role is to define how evidence should be integrated once the corresponding analyses have actually been performed (Hostiunin, 2026el).

I15 therefore introduces a formal separation among five scientific-status levels:

Established External Science;

Operationalized Vitological Architecture;

Empirically Open Candidate Claim;

Restricted or Reduced Claim;

Empirically Supported Claim.

The article proposes the Scientific Status Vector of Vitology, SSV_V; the Claim-Evidence Correspondence Matrix, CECM_V; the Open Proposition Register, OPR_V; the Status Transition Gate, STG_V; and the Provisional Empirical Closure Condition, PEC_V.

A Candidate Theory of Evidence-Constrained Vitological Generalization is formulated: the permissible breadth of a Vitological scientific claim cannot exceed the strongest level jointly supported by operationalization, non-redundancy, predictive or decision added value, replication, and cross-domain transfer.

The article also proposes the Doctrine of Scientific Status Separation and the Doctrine of No Advancement Without New Evidence.

The present status of the first external validation architecture is therefore not universal confirmation of Vitology.

The justified status is:

A prospectively specified, falsifiable, cross-domain empirical research architecture has been constructed; independent added predictive, decision, and cross-domain value remain empirical questions whose status must be determined by actual execution and replication.

Keywords: Vitology; Empirical Vitology; viability; scientific status; external validation; Model A; Model B; scientific subtraction; non-redundancy; replication; cross-domain transfer; predictive added value; decision added value; evidence integration; falsification; generalization; battery systems; sepsis; scientific status architecture.