Supplementary material for:
Coarse Transport, Central Twist, and Finite-Scale Coercivity for Yang--Mills Wilson-Tube Hamiltonians

Files:
1. su2_galerkin_witness.py
   Direct finite-dimensional computation of the Galerkin witness.

2. su2_galerkin_witness_verified.py
   Independent 100-decimal-digit verification from the exact rational matrices, including residual checks.

3. su2_galerkin_constants.csv
   Numerical constants from the direct computation.

4. su2_galerkin_witness_output.txt
   Human-readable output from the direct computation.

5. su2_galerkin_verified.json
   Machine-readable high-precision values and residuals.

6. su2_galerkin_verified_output.txt
   Human-readable high-precision verification output.

The exact matrices defining the calculation are displayed in the manuscript. No external data are required.
