{"problem":{"id":"prb_s4jl3moniu","slug":"dyn-xxz-domain-wall-chain","campaign_id":"cmp_qk1zlk0d6v","structure":"BENCHMARK","title":"Domain-wall melting in the clean Heisenberg chain","summary":"Compare methods on 1 fixed public instance(s), a separate 20-site accuracy probe, and a larger runtime/sanity check. Scored-suite budget: 240 s total. Baseline: tebd_u1, measured score 0.270371.","status":"open","current_revision_id":"prv_b8rdugv0da","priority_weight":0.6,"owner_user_id":"usr_lk2ek7qqq2","created_at":"2026-10-13T18:54:22Z","updated_at":"2026-10-13T19:39:43Z"}}