{ "date": "2026-10-06", "airport": "SSA", "name": "Salvador", "method": "Exact production SpaceSolver, jets only, minimum four edges, original times, no duration cutoff, no geographic or sphere forces. Free 3D starts 71\u201373 run until stable or 30,000 steps. Radius ratio is only a diagnostic, not validation of geography.", "findings": [ "The verification-index builder incorrectly parsed digit-bearing airline codes. G31682 must be G3 + 1682, yielding GLO1682; the old parser read G + 31682 and failed to find independent flight-route evidence.", "Correcting code parsing recovers 115 independently cross-checked observations involving SSA. SSA now has 159 observations and 12 edges rather than 44 observations and 7 edges.", "Recovered SSA edges: BSB, FOR, GRU, EZE and MVD. All restored observations still require consecutive airports in independent flight sequences; known stopovers remain excluded.", "The default corrected seed 71 still puts SSA and other Brazilian airports inward, with SSA local error 10.22% and radius ratio 0.538. Seed 72 reaches local error 3.84% and radius ratio 0.872 using exactly the same corrected constraints.", "With the earlier snapshot, optimizing SSA alone from both its original position and its reflection returned to the same placement when neighbors were fixed. The bad fit affects the surrounding cloud, not just one movable airport.", "Independent checks corroborate real nonstop services and plausible scheduled times for AF465 SSA\u2013CDG, TP26 SSA\u2013LIS, CM753 SSA\u2013PTY and G31621 SSA\u2013GRU. The audit did not independently certify every retained flight.", "No single obvious stopped-flight or universally too-fast-time error explains the current pocket. Missing links from a parsing bug and larger local minima explain the observed instability. Flight duration versus straight-line-distance model mismatch remains an additional limitation." ], "recovery": { "restored": 2788, "removed": 0, "restoredCarriers": { "P4": 12, "J2": 116, "D7": 37, "A3": 172, "R5": 6, "F3": 87, "D8": 208, "B6": 695, "U2": 144, "A9": 5, "W6": 29, "G3": 365, "F9": 731, "W4": 16, "Z2": 20, "B3": 3, "E5": 7, "G5": 3, "Z0": 12, "Y4": 43, "Q6": 10, "H9": 14, "I2": 1, "B0": 4, "N3": 12, "H2": 18, "W9": 2, "E9": 7, "U8": 5, "B7": 4 }, "SSARecoveredRecords": 115 }, "before": [ { "seed": 71, "globalError": 0.06494566083473581, "stable": true, "iterations": 10896, "SSA": { "airport": "SSA", "name": "Salvador", "edges": 7, "localError": 0.09753032832331315, "rmse": 0.6441060286552, "meanError": 0.09879909909468733, "maxPositive": { "a": "LIS", "b": "SSA", "target": 8.479166666666666, "fitted": 9.349850890024468, "error": 0.8706842233578023, "relativeError": 0.10268511725104303, "twoWay": true, "records": 3 }, "maxNegative": { "a": "CDG", "b": "SSA", "target": 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