Pith Number

pith:U3E6R2B7

pith:2023:U3E6R2B7LD7OQDR6PIXBZOG2SD

not attested not anchored not stored refs pending

Observational Signatures: Shadow cast by the effective metric of photons for black holes with rational non-linear electrodynamics

Akhil Uniyal, Ali \"Ovg\"un, Mohsen Fathi, Sayan Chakrabarti

arxiv:2309.13680 v2 · 2023-09-24 · gr-qc · astro-ph.HE · hep-th

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Add to your LaTeX paper

\usepackage{pith}
\pithnumber{U3E6R2B7LD7OQDR6PIXBZOG2SD}

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Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Cited by

2 papers in Pith

Constitutive birefringence and critical curves in the rotating Garc\'ia--D\'iaz black hole

$\tt BlackHawk$ $\tt v3.0$: Hawking Radiation from Regular Black Holes

Receipt and verification

First computed	2026-07-05T07:40:57.353662Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a6c9e8e83f58fee80e3e7a2e1cb8da90d49dd6cac78e7018117e0baa0035aa24

Aliases

arxiv: 2309.13680 · arxiv_version: 2309.13680v2 · doi: 10.48550/arxiv.2309.13680 · pith_short_12: U3E6R2B7LD7O · pith_short_16: U3E6R2B7LD7OQDR6 · pith_short_8: U3E6R2B7

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/U3E6R2B7LD7OQDR6PIXBZOG2SD \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: a6c9e8e83f58fee80e3e7a2e1cb8da90d49dd6cac78e7018117e0baa0035aa24

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "45f694d30bb0c7156a1844986a284e8cea896087557745c5acf2d28d8287a815",
    "cross_cats_sorted": [
      "astro-ph.HE",
      "hep-th"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2023-09-24T16:08:15Z",
    "title_canon_sha256": "e3154731d3e12137fc35fd1be0d65d09d349003f8ae2fb46c8968af55217e848"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2309.13680",
    "kind": "arxiv",
    "version": 2
  }
}