This appendix derives topological stability criteria in BCT systems, highlighting detection capabilities in Machu Picchu.
Full derivation supporting BCT Letter 104. Derives the BCT topological lifetime formula τ_n = t_U × exp(4π²/α₀n) = t_U × exp(5329/n). Tabulates stability for H=1,2,3,10. Establishes BCT SAR parameters for Machu Picchu Sacred Valley: ~600 Sentinel-1 scenes, 10m resolution, 300km² coverage, void detection to 80m depth. Companion appendix to Letter 104, Predictions #147 and #148.
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Michel Robert Cabrié (2026) studied this question.
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