<entry>) returned by the arXiv API.{
"arxiv_id": "string",
"version": 0,
"entry_id": "string",
"title": "string",
"summary": "string",
"authors": [
{
"name": "string",
"affiliation": "string"
}
],
"primary_category": "string",
"categories": [
"string"
],
"published": "string",
"updated": "string",
"doi": "string",
"journal_ref": "string",
"comment": "string",
"urls": {
"abstract": "string",
"pdf": "string",
"doi": "string"
}
}