Pre-acquisition commitments for a prospective Sentinel-2 methane decision shadow pilot

Cryptographic pre-acquisition commitments for a prospective public Sentinel-2 methane decision shadow pilot. Version 1.1 preserves the Stage A commitment from version 1.0 and adds the frozen execution lock plus an exact, label-blind five-member reference bank for the 22 opportunities selected by at least one frozen policy (110 references in total). These artifacts were created before the first planned acquisition and contain no future target imagery, detector output, methane truth, or outcome. Stage A commitment payload SHA-256: 9adf1c1e17ed940b2d44d695b86ec5f72d1f055e5dba3df5298635bad0f01345.Pre-arrival execution lock payload SHA-256: 8364478b2bf57a28690af5125351eaa88d329ee21890799b56e274e97cc65cbf.Reference-bank file SHA-256: e184dcda06399a736e565ac693f15e407c381e0bc16e3b9a44232656fc6e90df.Earliest planned acquisition midpoint: 2026-07-28T02:38:24.187Z. This pilot remains a prospective workflow shakedown and does not establish specificity, causal mitigation, verified avoided methane, or autonomous deployment.