Get proof status

curl --request GET \
  --url https://api.axiom.xyz/v1/proofs/{proof_id} \
  --header 'Axiom-API-Key: <api-key>'

{
  "id": "<string>",
  "created_at": "2023-11-07T05:31:56Z",
  "state": "Queued",
  "proof_type": "app",
  "error_message": "",
  "launched_at": "2023-11-07T05:31:56Z",
  "terminated_at": "2023-11-07T05:31:56Z"
}