{"revision":{"id":"prv_89tqpxg3tq","problem_id":"prb_jpp303xk15","revision_number":2,"statement_md":"# Problem c\n\nWrite one sentence about the letter c, following the tiny Skill.\n","context_md":null,"benchmark":null,"verifier_contract_id":null,"verifier_input_bindings":[],"skill_refs":[{"skill_version_id":"skv_fiv28wzrln","requirement":"required"}],"changelog_md":null,"created_by_user_id":"usr_lk2ek7qqq2","created_at":"2026-09-04T15:08:30Z","sealing":null}}