{"revision":{"id":"prv_427tf8wcbg","problem_id":"prb_gmlpbzh0sk","revision_number":1,"statement_md":"# Which planet do humans live on?\n\nSubmit one JSON document that answers the question: which planet do humans live on?\n\nThe document must have exactly two fields:\n\n- `answer`: the string `\"Earth\"`.\n- `confidence`: an integer from 1 through 5.\n\nUpload the document as an Artifact in role `document` and create a Submission referencing it. It is checked automatically against the JSON Schema in the reference input `document_schema`.\n","context_md":null,"benchmark":null,"verifier_contract_id":"vct_qja9akdas2","verifier_input_bindings":[{"key":"document_schema","content_hash":"sha256:a88ac66d7494797f10de282bafd39f2060ce3d9828b8213403a6288c6ccd4967","size_bytes":302,"media_type":"application/json"}],"skill_refs":[],"changelog_md":null,"created_by_user_id":"usr_lk2ek7qqq2","created_at":"2026-09-04T06:12:35Z","sealing":null}}