Pith Number

pith:DWPME73O

pith:2026:DWPME73OKDVG2727BPD26LG3CG

not attested not anchored not stored refs resolved

Dymnikova Black Holes in Unimodular Gravity: Maxwell Sources and Vacuum Contributions

G. Alencar, V. H. U. Borralho

Dymnikova regular black holes arise from standard Maxwell electrodynamics in unimodular gravity with a radially varying cosmological term.

arxiv:2605.15255 v1 · 2026-05-14 · gr-qc

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\usepackage{pith}
\pithnumber{DWPME73OKDVG2727BPD26LG3CG}

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Record completeness

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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.

Claims

C1strongest claim

we demonstrate that the same geometry can be consistently generated by standard Maxwell electrodynamics in unimodular gravity. In this construction, the resulting electric field is everywhere regular and corresponds to a localized charge distribution with vanishing asymptotic charge, indicating that the spacetime does not behave as an asymptotically charged object.

C2weakest assumption

By allowing a controlled violation of the covariant conservation of the energy--momentum tensor, the cosmological contribution emerges dynamically as a radial-dependent function, Λ=Λ(r).

C3one line summary

Dymnikova black holes are realized in unimodular gravity with Maxwell sources, yielding regular electric fields and vanishing asymptotic charge.

References

36 extracted · 36 resolved · 13 Pith anchors

[1] Schwarzschild, Sitzungsberichte der K¨ oniglich Preußischen Akademie der Wissenschaften , 189 (1916) 1916

[2] I. Dymnikova, Gen. Rel. Grav.24, 235 (1992) 1992

[3] Black-bounce to traversable wormhole 2019 · arXiv:1812.07114

[4] Formation and evaporation of non-singular black holes 2006 · arXiv:gr-qc/0506126

[5] J. M. Bardeen, inProceedings of the International Conference GR5(Tbilisi, USSR, 1968) 1968

Formal links

2 machine-checked theorem links

Receipt and verification

First computed	2026-05-20T00:00:48.749124Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1d9ec27f6e50ea6d7f5f0bc7af2cdb1192c8811602f3f1d624f127dd7348dbb3

Aliases

arxiv: 2605.15255 · arxiv_version: 2605.15255v1 · doi: 10.48550/arxiv.2605.15255 · pith_short_12: DWPME73OKDVG · pith_short_16: DWPME73OKDVG2727 · pith_short_8: DWPME73O

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/DWPME73OKDVG2727BPD26LG3CG \
  | 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: 1d9ec27f6e50ea6d7f5f0bc7af2cdb1192c8811602f3f1d624f127dd7348dbb3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "357f9b652f7530b6eb239620028c4b5374b6393e7dfa7bc872b51edcd444bb62",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2026-05-14T17:41:50Z",
    "title_canon_sha256": "78d47361916cc610e9481530ba6f0e0c2c130597c6002d32a3917a4423d9a64a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2605.15255",
    "kind": "arxiv",
    "version": 1
  }
}