Pith Number

pith:SB7UODJP

pith:2020:SB7UODJP2HIAM5MPCO2JKZWGXK

not attested not anchored not stored refs pending

Testing the nature of Gauss-Bonnet gravity by four-dimensional rotating black hole shadow

Shao-Wen Wei, Yu-Xiao Liu

arxiv:2003.07769 v4 · 2020-03-17 · 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{SB7UODJP2HIAM5MPCO2JKZWGXK}

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

3 papers in Pith

Reshaping the inner shadow of a Kerr black hole by a torn accretion disk

Optical Appearance of Scalarized Kerr-Newman Black Holes with Multiple Light Rings

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

Receipt and verification

First computed	2026-07-05T07:47:22.983446Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

907f470d2fd1d006758f13b49566c6ba9bd8df8bc29c51f860d6839f88d8bc2b

Aliases

arxiv: 2003.07769 · arxiv_version: 2003.07769v4 · doi: 10.48550/arxiv.2003.07769 · pith_short_12: SB7UODJP2HIA · pith_short_16: SB7UODJP2HIAM5MP · pith_short_8: SB7UODJP

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/SB7UODJP2HIAM5MPCO2JKZWGXK \
  | 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: 907f470d2fd1d006758f13b49566c6ba9bd8df8bc29c51f860d6839f88d8bc2b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "331530cca557f8230eeda02678653210e327c38b844f017e9459b04b63da2cad",
    "cross_cats_sorted": [
      "hep-th"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2020-03-17T15:33:47Z",
    "title_canon_sha256": "48cc599a074c0e7b063b90ba78f13e503559e0744177c5f434a60717bb7d082e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2003.07769",
    "kind": "arxiv",
    "version": 4
  }
}