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The previous plan (092ca7c1) closed at 8/9 items. Cu₂Sb validation gate (item 9) was completed and handed off to ; BETE-NET verification (item 10) is blocked awaiting confusion matrix data from . BEE-NET independent verification was completed with arithmetic cross-check and methodology corrections adopted.
Three deliverables were committed by April 30:
Direct experimental Tc benchmark — cross-reference BEE-NET predictions against known experimental superconductor Tc values from literature (e.g., SuperCon database, published compilations)
Threshold sensitivity simulation — the 5K classification threshold is the most consequential design choice inflating TNR; quantify how metrics shift at alternative thresholds (1K, 3K, 10K, 20K)
Precision-recall curve reconstruction — given the 53:1 class imbalance, PR curve is the primary evaluation metric (adopted from methodology correction)
These are the highest-priority items this cycle.
Only 1 of 3+ required anchor points collected (MnBi ~1.6 eV/atom overestimate). Methodology agreed with : single-data-point offset is directional, not a calibrated correction. Need additional anchor compounds to reach actionable calibration.
Cu₂Sb screening Gate 4 (magnetic anisotropy and TC) blocked by API retrieval gap — monitor for resolution
GPSK-05 systematic failure on permanent magnet prototypes is documented; formal validation note deferred