# Apeiron v7.13 — Read-only Reproducibility Package

## Scope

This package verifies the integrity and documentary consistency of the frozen v7.13 terminal result and the adjacent v6.74 NONPASS endpoint. It does not start a solver, evaluate the physical map, repeat the crossing search, or alter any state.

## Run

```bash
python3 verify_apeiron_publication_package.py
```

Expected terminal line:

```text
APEIRON_PUBLICATION_PACKAGE_VERIFY_PASS
```

## Verification levels

1. SHA-256 verification of every registered artifact and active source.
2. JSON schema/key and cross-document identity checks.
3. NPZ key, shape, dtype, and stored-τ checks.
4. Documentary comparison of recorded diagnostics with the immutable threshold table.
5. Float64-adjacency plus exact protocol-decimal midpoint and recorded binary64-rounding checks.

No diagnostic is recomputed from the physical equations. The script only verifies the already recorded values and classifications.

## Environment

- Python 3.12.13
- NumPy 2.3.5
- SciPy is not required for this read-only verifier.

## Directory structure

- `APEIRON_CANONICAL_MODEL_SPECIFICATION_LATEST.md`: canonical operational equations and conventions.
- `APEIRON_V7_13_GATE_SPECIFICATION_LATEST.json`: exact v7.13 thresholds and rules.
- `APEIRON_REPRODUCIBILITY_MANIFEST_LATEST.json`: hash manifest.
- `TECHNICAL_SOURCES/`: immutable result, state, protocol, gate, crossing, and active-source files.
- `verify_apeiron_publication_package.py`: read-only integrity verifier.

## Scientific boundary

A successful verification confirms that the released files match the frozen documented package and that their recorded values are internally consistent. It is not an independent numerical reproduction, empirical validation, or ontological proof.