Pith Number

pith:JOT46QIG

pith:2022:JOT46QIGMDGGN3IMUVPM34N2BP

not attested not anchored not stored refs pending

Photon regions, shadow observables and constraints from M87* of a charged rotating black hole

Xiao-Mei Kuang, Yuan Meng, Zi-Yu Tang

arxiv:2204.00897 v2 · 2022-04-02 · 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{JOT46QIGMDGGN3IMUVPM34N2BP}

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.

Cited by

1 paper in Pith

Regular black hole solutions and the quark chemical potential at the QCD phase transition

Receipt and verification

First computed	2026-07-05T04:58:15.582306Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4ba7cf410660cc66ed0ca55ecdf1ba0bdc5ce504bb85e4d9b214be13ea954c51

Aliases

arxiv: 2204.00897 · arxiv_version: 2204.00897v2 · doi: 10.48550/arxiv.2204.00897 · pith_short_12: JOT46QIGMDGG · pith_short_16: JOT46QIGMDGGN3IM · pith_short_8: JOT46QIG

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/JOT46QIGMDGGN3IMUVPM34N2BP \
  | 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: 4ba7cf410660cc66ed0ca55ecdf1ba0bdc5ce504bb85e4d9b214be13ea954c51

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b23346ecb4f15bb01635ad5e137fde4daf7df2c6d8ff22abb239770ee00ffdd1",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2022-04-02T16:34:38Z",
    "title_canon_sha256": "b1d07a4e3244485521bd162110e6cd28ad9dd991db50214df17880fb95fcbe9a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2204.00897",
    "kind": "arxiv",
    "version": 2
  }
}