Challenge the declared spectral route.
Then test biology.

Purpose BandTrace turns “the model ran on this sensor” into a hash-pinned challenge: route and tap agreement, probe-local output dependence, and effective response-function support.

XExecutable path

Declared route versus adapter-reported pre-core tap, then selected-output dependence on frozen probes.

SSpectral support

Routed, unit-area sensor response functions versus supplier-declared training support.

TBiological transport

Always T0. No biological endpoint is evaluated by this software preflight.

Reference result

Three answers. Never one badge.

The instrument-controlled reference bundle reaches X3 + S3 + T0.

X3

Output dependence observed on probes

The declared route agrees with the reported tap and required inputs changed one selected output under adequate frozen challenges. This is not global causal-use proof.

S3

SRF within declared support

Each routed effective target response fits the supplier-declared training response support. This is not radiometric calibration, transfer accuracy or camera equivalence.

T0

Biological transport not evaluated

T0_BIOLOGICAL_TRANSPORT_NOT_EVALUATED is permanent. X3 + S3 + T0 is eligibility for a separate external study, not a compatibility certificate.

Published release / verified hosted bytes

Install, generate a reference bundle, audit.

python -m pip install \
  https://harrrshall.github.io/alphaspectra-bridgecheck/downloads/bandtrace/alphaspectra_bandtrace-0.1.0-py3-none-any.whl

bandtrace make-reference-bundle /tmp/bandtrace-reference
bandtrace audit /tmp/bandtrace-reference \
  --output-dir /tmp/bandtrace-report

Python 3.10+ on Linux. The completed-audit path requires renameat2(RENAME_NOREPLACE).

Wheel SHA-256e6800aec7e8a8411940a1f53ed9ae56273bacc0c8c22ecccc72e0c9de9938e7f
Source SHA-2566ed50ec69baf2031ef3025bf6dc639c7f15777ae78b9fcb712a8351dd0725cb1

Release evidence

Fails closed inside its declared boundary.

Software and packaging verification within the declared contract and trust boundary only.

Planted faults
22
Axis-specific blocks
Coherent tests
396
Frozen authority suite
Compatibility
6
Python/NumPy environments
Rebuilds
Byte-identical hosted artifacts

This page does not execute BandTrace, accept a model bundle, or upload model/sensor data. Downloaded code runs only where the user installs it.

Claim firewall

A preflight is not a certificate.

What it can establish

Frozen-bundle route/tap challenge agreement, selected-output dependence on the supplied probes, and declared response-function support.

What remains outside

Accuracy, calibration, safety, biology, disease, transport, deployment approval, regulation, global determinism and untrusted-code containment.