Pith Number

pith:YASA2BIE

pith:2026:YASA2BIE4GGTKZPOOCBSHQVTS7

not attested not anchored not stored refs pending

Nonlinear electrodynamics in Kerr-Newman-NUT-$\Lambda$ spacetime: exact solutions, horizons, and energy conditions

Alfredo Mac\'ias, Claus L\"ammerzahl, Nora Breton, Oscar Galindo-Uriarte

arxiv:2607.22977 v1 · 2026-07-25 · gr-qc

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{YASA2BIE4GGTKZPOOCBSHQVTS7}

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.

Receipt and verification

First computed	2026-07-28T00:22:05.413893Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c0240d0504e18d3565ee708323c2b397c571deeb803b1a7de8610cc3dbb2fdb9

Aliases

arxiv: 2607.22977 · arxiv_version: 2607.22977v1 · doi: 10.48550/arxiv.2607.22977 · pith_short_12: YASA2BIE4GGT · pith_short_16: YASA2BIE4GGTKZPO · pith_short_8: YASA2BIE

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/YASA2BIE4GGTKZPOOCBSHQVTS7 \
  | 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: c0240d0504e18d3565ee708323c2b397c571deeb803b1a7de8610cc3dbb2fdb9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "445abcfbd51436684db3fb6c407d31d2328d3cb2afc5c26de28e6019ef1f4632",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2026-07-25T01:11:52Z",
    "title_canon_sha256": "6cc7edca6f031e77e8547f1771fb0012352c90b9e25f8af231fcaac8b19a50c0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2607.22977",
    "kind": "arxiv",
    "version": 1
  }
}