{
  "annotation_id": "40663943-822a-423c-8d06-0622436d9820",
  "date_created": "2026-03-02T18:01:17.965000Z",
  "date_modified": "2026-03-02T18:01:17.965000Z",
  "file_hash": "e9cca046f401900dc3f4764b191603598963bce733ab936da69be853e3a27583",
  "private": false,
  "record": {
    "abstract": "This is the third paper by Nordstr{\\\"o}m on his five dimensional theory. Here\nNordstr{\\\"o}m attempts to base a theory of matter on the energy conservation\ngeneralized to the five dimensional case. This involves a new fundamental\nconstant related to the elementary electric charge.",
    "arxiv_id": "physics/0702223",
    "authors": [
      "Gunnar Nordstr\u00f6m"
    ],
    "categories": [
      "physics.gen-ph",
      "physics.hist-ph"
    ],
    "journal_ref": "{\\\"O}versigt af Finska Vetenskaps-Societetens F{\\\"o}rhandlingar\n  (Helsingfors), Bd. LVII. 1914-1915. Afd. A. N:o 28, p. 1--21",
    "title": "On a possible foundation of a theory of matter",
    "url": "https://arxiv.org/abs/physics/0702223"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "f322ca1d-fc96-43d4-a6b7-034641d50a8a",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}