{
  "version": "0.1",
  "state_space": "direct sum over nonempty tetrahedral simplices of C^r, plus independent unitary incidence links and local temporal connections",
  "native_reduction": "r=1, real states, identity links, zero temporal connection recovers original real flow",
  "evolution": "dc/ds=(D_U^dagger-D_U+Omega)c; link evolution currently prescribed, not source-derived",
  "initial_data": [
    "c(0)",
    "r",
    "all 28 U links as functions of internal s",
    "local temporal blocks Omega"
  ],
  "readouts": [
    "simplex squared norms",
    "signed gauge-invariant support currents",
    "diamond holonomy conjugacy classes and chi_W"
  ],
  "exact_admissibility": [
    "unitarity",
    "local frame covariance including temporal connection",
    "signed S4 family covariance",
    "norm and regional continuity"
  ],
  "branch_change": "Curvature requires D_U^2 != 0 and a curvature term in the Hodge-square relation. Original geometric boundary B remains nilpotent.",
  "physical_requirements": [
    "joint link-matter action/phase space and Gauss law",
    "source of group and representations",
    "calibrated scale/clock",
    "chiral anomaly-free matter and continuum validation",
    "renormalization scheme, thresholds and predictions",
    "target-blind test and independent review"
  ],
  "analogue_candidate": {
    "modes": 15,
    "links": 28,
    "mapping": "H_phys=i hbar eta A_U",
    "control": "phase u on vertex0 <- edge01; other link phases identity; common unit magnitude",
    "prediction": "phase0: active frequency2eta multiplicity7; phase pi/2: sqrt2eta multiplicity1,2eta multiplicity5,sqrt6eta multiplicity1; harmonic zero1",
    "measurement": "complex transfer reconstruction or sufficient calibrated mode-exciting preparations",
    "null_controls": [
      "gauge-related rephasings",
      "phase0 native operator",
      "separately calibrated coupling magnitude errors"
    ],
    "status": "CANDIDATE protocol outline; instrument, error budget and thresholds OPEN"
  },
  "physical_promotion": 0,
  "flatness_scope": "incidence/spatial transport only, pointwise in internal s; mixed temporal curvature can remain nonzero; instantaneous spectrum does not fix the full time-dependent propagator"
}