Pith Number

pith:BEEWOZ2X

pith:2004:BEEWOZ2XTZE6DK2CVYFL73XHJI

not attested not anchored not stored refs pending

Extremal limit of the regular charged black holes in nonlinear electrodynamics

Jerzy Matyjasek

arxiv:gr-qc/0403109 v1 · 2004-03-28 · 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{BEEWOZ2XTZE6DK2CVYFL73XHJI}

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	2026-07-04T16:47:42.762267Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

09096767579e49e1ab42ae0abfeee74a3bfb54640693bd047a460fe780a1e3ef

Aliases

arxiv: gr-qc/0403109 · arxiv_version: gr-qc/0403109v1 · doi: 10.48550/arxiv.gr-qc/0403109 · pith_short_12: BEEWOZ2XTZE6 · pith_short_16: BEEWOZ2XTZE6DK2C · pith_short_8: BEEWOZ2X

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/BEEWOZ2XTZE6DK2CVYFL73XHJI \
  | 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: 09096767579e49e1ab42ae0abfeee74a3bfb54640693bd047a460fe780a1e3ef

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4cd91b3d850b3a823e2f7a2290945c6fefb61a101a1807344eea49e624df7801",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "gr-qc",
    "submitted_at": "2004-03-28T19:24:31Z",
    "title_canon_sha256": "bfad383e3a0aeffdd437bb434b050555f506de4c38fd53ecb8aa03a15c56938e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "gr-qc/0403109",
    "kind": "arxiv",
    "version": 1
  }
}