Pith Number

pith:5WEWQYJG

pith:2017:5WEWQYJGTS4EXF7JUZUZOFGIZQ

not attested not anchored not stored refs pending

Black hole shadow in an asymptotically-flat, stationary, and axisymmetric spacetime: The Kerr-Newman and rotating regular black holes

Naoki Tsukamoto

arxiv:1708.07427 v3 · 2017-08-24 · 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{5WEWQYJGTS4EXF7JUZUZOFGIZQ}

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

4 papers in Pith

EHT-Constrained Analysis of Shadow Deformation in Quantum-Improved Rotating Non-Singular Magnetic Monopole

Gravity/thermodynamics correspondence via black hole shadows

Observational constraints on nonlocal black holes via gravitational lensing

Probing Kalb-Ramond gravity with charged rotating black holes: constraints from EHT observations

Receipt and verification

First computed	2026-05-18T00:20:44.523014Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ed896861269cb84b97e9a6699714c8cc20c57873180e3252cea7eba78824c3f1

Aliases

arxiv: 1708.07427 · arxiv_version: 1708.07427v3 · doi: 10.48550/arxiv.1708.07427 · pith_short_12: 5WEWQYJGTS4E · pith_short_16: 5WEWQYJGTS4EXF7J · pith_short_8: 5WEWQYJG

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/5WEWQYJGTS4EXF7JUZUZOFGIZQ \
  | 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: ed896861269cb84b97e9a6699714c8cc20c57873180e3252cea7eba78824c3f1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2b7c792521dfd729a2dedd7719926975f72ad1995f5a9de67630bbfcbb01dcd5",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2017-08-24T14:02:37Z",
    "title_canon_sha256": "223cb57ff8f3e61f18102e7a6cd401da51f6ba6f79e74e83f18ba6a76539e1c7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1708.07427",
    "kind": "arxiv",
    "version": 3
  }
}