{
  "annotation_id": "3cc7e28d-ea76-478c-8e43-3502f6e400ed",
  "date_created": "2026-03-02T18:01:03.290000Z",
  "date_modified": "2026-03-02T18:01:03.290000Z",
  "file_hash": "4d9f0c3b3b6a6a4afd4ae0b08ac87bcaeee971ba233c23df77c13c1d6cf54da2",
  "private": false,
  "record": {
    "abstract": "Although the Universe is far from understood, we are fairly confident about\nsome key features: Special Relativity (SR) describes the kinematics of inertial\nframes; General Relativity (GR) explains gravitation; the Universe had a\nbeginning in time and has been expanding since. Nevertheless it is quite\ndifficult to see the \u0027big picture\u0027, although the idea of applying GR to the\nentire Universe has been very successful with a model emerging that is\nconsistent with observation. One unpleasant feature of the model is that\ncosmological photons appear not to conserve energy, and the only explanation\nforthcoming is the claim that GR is exempt from the principle of energy\nconservation. It is demonstrated here that cosmological observations may\nlegitimately be projected onto flat spacetime and can then be treated Special\nRelativistically, whereupon energy conservation is restored. This is not to say\nthat the concordance General Relativistic cosmological model is incorrect, just\nthat in observational terms there is no energy conservation anomaly.",
    "arxiv_id": "physics/0511178",
    "authors": [
      "Alasdair Macleod"
    ],
    "categories": [
      "physics.gen-ph"
    ],
    "title": "Do redshifted cosmological photons really violate the principle of   energy conservation?",
    "url": "https://arxiv.org/abs/physics/0511178"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "a28f8ab8-ff0c-47bb-a468-e35f9f0df826",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}