Updated 20 October 2026

Where the work stands

What exists and what does not, updated when the state changes and only from sealed records.

Physical measurementsNone yet

Physical validationNot validated

ReplicationNot replicated

Next milestoneTier 0, then Benchmark A

**Table 10.** Components and their qualification. “Simulation-qualified” means self-tested and checked against exact answers in simulation; it is not a statement about the physical world.
Component	State	Qualification
Physics engines	Room acoustics, 2-D/3-D wave fields, atmospheric sound speed and absorption, layered and continuum ground, groundwater tides, local magnetic field, sky geometry, coupled air–solid media	Simulation-qualified
Validation against exact answers	Simulated cases checked against independent analytical solutions	Simulation-qualified
3-D workbench	Desktop application to build structures and terrain, run simulations and freeze results as predictions	Built
Calibration lab	Sealed, expiring calibrations: microphones, microphone pairs, converters, noise floor, environment sensors, geometry tools, certificates	Built Awaiting first use
Measurement campaigns	Frozen prediction → capture → verdict, for audio interfaces, seismometers, loggers and file imports	Built Awaiting first use
Benchmark A	Contract, predictions and amendments v1.1–v1.2 frozen; apparatus being assembled	Awaiting hardware
Correlation-only fusion	Side-by-side comparison of sealed outputs, with no causal claims	Simulation-qualified

Not claimed: no physical validation of any model; no predictive accuracy for any real site or structure; no historical, archaeological or causal interpretation; no claim about the intent of past builders; no result that has not passed through the sealed chain.