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# Limitations

  • The root baseline comparison is present, but numeric acceptance boundaries are still provisional until a saved artifact is generated and reviewed.
  • Current data posture is source-referenced but still below a fully normalized archival dataset package.
  • Berut 2012 and exact SI/CODATA source records are now pinned under docs/data/external/..., but the Berut numeric rows used by the verifier remain topic-derived summaries rather than raw archived tables.
  • The data package still contains manual literature summaries, so the topic cannot yet claim fully standardized data provenance.
  • Research_Landauer.py verifies exact-constant consistency and lower-bound behavior; it does not prove the complete UET bridge mechanism.
  • Bekenstein, Unruh, Hawking, and Josephson formulas are established physics/metrology identities. They constrain the bridge but do not independently validate UET dynamics.
  • The Cattaneo benchmark is synthetic and fitted; it is useful for model-shape checking but cannot be cited as external experimental evidence.
  • The vacuum entropy-sink script is an open hypothesis sandbox. It requires conservation-law accounting and an independently motivated physical mechanism before it can support core theory claims.
  • Internal script execution does not by itself establish external replication, theorem-level proof, or broad physical closure.

Current Claim Boundary

Claim area Allowed wording now Blocker to stronger wording
Landauer bridge Source-record-backed lower-bound consistency check Raw external source package, uncertainty table, and dynamic UET prediction beyond the lower bound.
Thermodynamic gravity links Consistency with standard formulas Formal derivation showing how UET field variables produce the relation, not only reuse it.
Non-equilibrium heat transport Synthetic Cattaneo-style lag demonstration Real dataset or declared simulation-only role with fixed parameters.
Vacuum entropy sink Hypothesis sandbox Physical mechanism, conservation accounting, and falsifiable test.
Provenance workflow Intake/readiness gate exists for missing source packages Filled evidence entries, archived upstream files, and source-review closure.
Dependent theory topics May inherit lower-bound and standard-formula constraints from the foundation claim gate UET bridge proof, source-normalized dataset closure, uncertainty propagation, and dependency proof.

Core Thermodynamic Constraint Boundary

  • The Landauer quantity k_B T ln(2) is an imported lower-bound constraint. It does not derive the UET coefficient beta, an equation of state, mobility, or a core coupling coefficient.
  • Bekenstein, Unruh, Hawking, and related standard identities constrain candidate mappings but do not supply a UET entropy current, dissipative-Bianchi closure, or covariant transport law.
  • The Cattaneo artifact remains analytical and synthetic. Passing its control gates is not external heat-transport validation.
  • The matter-space thermal pilot remains SIMULATION_ONLY / FAIL: physical pre-arrival leakage and external numeric-source readiness remain failed gates.
  • The thermal source review now closes only the standard normalized TTG measurement operator Delta_Tq(t)/Delta_Tq(0) and the candidate normalized UET operator Delta_Phi(t)/Delta_Phi(0); it does not establish a dimensional map.
  • alpha_Phi_K remains an open calibration-dependent coefficient. Heat flux and entropy production are downstream derived quantities, not direct TTG observables in this package.
  • The 2026 graphite source declares source data provided with the study but remains a locked holdout and is not locally archived or consumed here; the 2022 source remains request-based.
  • Normalized Phi and derived trace R are not temperature, heat flux, entropy, information matter, or feedback variables without a separately justified dimensional observable map.
  • The four active Berut, Jun, Hong, and Peterson source-row controllers remain independent and unchanged.
  • The dependency packet cannot promote Topic 0.13 beyond Draft / B; it records what may be inherited and what remains blocked.