Pith Number

pith:CQBYFTZF

pith:2026:CQBYFTZFB3UWY2WA7ENBD3GTJB

not attested not anchored not stored refs resolved

When Bumblebee Meets NLED: Lorentz-Violating Black Holes and Regular Spacetimes

H.Lu, Zhi-Chao Li

Fine-tuning mass and charge in bumblebee gravity with nonlinear electrodynamics removes central singularities to produce regular horizonless spacetimes.

arxiv:2605.13963 v1 · 2026-05-13 · gr-qc · hep-th

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{CQBYFTZFB3UWY2WA7ENBD3GTJB}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

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.

Claims

C1strongest claim

By fine-tuning the mass-charge relation, one can generally remove the pole singularity, giving rise to marginally regular black holes. For a suitable NLED theory such as Born-Infeld theory, both singularity sources can be removed at the cost of requiring both the mass and the charge to be fine-tuned to specific functions of the coupling constants. The resulting solutions describe regular horizonless spacetimes interpolating from AdS or dS cores to Lorentz-violating vacua.

C2weakest assumption

The norm-fixed radial configuration of the bumblebee vector makes the solutions asymptotic to a conical Lorentz-violating vacuum and requires stringent nonminimal bumblebee-NLED couplings.

C3one line summary

Bumblebee gravity coupled to NLED yields charged black hole solutions that become regular and horizonless when mass and charge are tuned to specific functions of the couplings.

References

33 extracted · 33 resolved · 19 Pith anchors

[1] Spontaneous breaking of Lorentz symmetry in string theory, 1989

[2] Data Tables for Lorentz and CPT Violation 2011

[3] Modern tests of Lorentz invariance, 2005

[4] Signals for Lorentz Violation in Post-Newtonian Gravity 2006 · arXiv:gr-qc/0603030

[5] Spontaneous Lorentz Violation, Nambu-Goldstone Modes, and Gravity 2005 · arXiv:hep-th/0412320

Formal links

2 machine-checked theorem links

Receipt and verification

First computed	2026-05-17T23:39:13.584647Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

140382cf250ee96c6ac0f91a11ecd3487c039a0e07bf2cefa94b652dee346222

Aliases

arxiv: 2605.13963 · arxiv_version: 2605.13963v1 · doi: 10.48550/arxiv.2605.13963 · pith_short_12: CQBYFTZFB3UW · pith_short_16: CQBYFTZFB3UWY2WA · pith_short_8: CQBYFTZF

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/CQBYFTZFB3UWY2WA7ENBD3GTJB \
  | 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: 140382cf250ee96c6ac0f91a11ecd3487c039a0e07bf2cefa94b652dee346222

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1a5ec5f71a257a0944aa13a01fe3d5152a1b9b09d42358d6b8a4af7b0da1517d",
    "cross_cats_sorted": [
      "hep-th"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2026-05-13T18:00:02Z",
    "title_canon_sha256": "79842eddd7b1d3be3ffd83f7412968a74458075fb800e296b0e4ab23e7f6274e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2605.13963",
    "kind": "arxiv",
    "version": 1
  }
}