{
  "annotation_id": "798baade-c9b4-42d6-94d5-984c39812117",
  "date_created": "2026-03-02T18:01:25.304000Z",
  "date_modified": "2026-03-02T18:01:25.304000Z",
  "file_hash": "06e145d9cb58c729e730e148a22612ab47454ac1a7a8733d81a4d64684b86ead",
  "private": false,
  "record": {
    "abstract": "An important question of theoretical physics is whether sound is able to\npropagate in vacuums at all and if this is the case, then it must lead to the\nreinterpretation of one zero-restmass particle which corresponds to\nvacuum-sound waves. Taking the electron-neutrino as the corresponding particle,\nits observed non-vanishing rest-energy may only appear for neutrino-propagation\ninside material media. The idea may also influence the physics of dense matter,\nrestricting the maximum speed of sound, both in vacuums and in matter to the\nspeed of light.",
    "arxiv_id": "physics/9908010",
    "authors": [
      "Robert Lauter"
    ],
    "categories": [
      "physics.gen-ph"
    ],
    "title": "Possibility of Sound Propagation in Vacuums with the Speed of Light",
    "url": "https://arxiv.org/abs/physics/9908010"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "857b94af-659e-4df9-9bcb-6bab760b7513",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}