Pith Number

pith:WPGU7XHQ

pith:2021:WPGU7XHQT5XBHEK7CVLUQ2XIQY

not attested not anchored not stored refs pending

Trapping of null geodesics in slowly rotating extremely compact Tolman VII spacetimes

Jaroslav Vrba, Zden\v{e}k Stuchl\'ik

arxiv:2108.09466 v1 · 2021-08-21 · 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{WPGU7XHQT5XBHEK7CVLUQ2XIQY}

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

Radiative Back-Reaction on Charged Particle Motion in the Dipole Magnetosphere of Neutron Stars

Receipt and verification

First computed	2026-07-05T03:07:54.646956Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b3cd4fdcf09f6e13915f1557486ae886382e5c326cf89524ce8fd0b946737344

Aliases

arxiv: 2108.09466 · arxiv_version: 2108.09466v1 · doi: 10.48550/arxiv.2108.09466 · pith_short_12: WPGU7XHQT5XB · pith_short_16: WPGU7XHQT5XBHEK7 · pith_short_8: WPGU7XHQ

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/WPGU7XHQT5XBHEK7CVLUQ2XIQY \
  | 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: b3cd4fdcf09f6e13915f1557486ae886382e5c326cf89524ce8fd0b946737344

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "80f97f62b4743a6409860eb37c914099b761b8dc2bef3ba01f4ac4659011f44b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2021-08-21T09:01:01Z",
    "title_canon_sha256": "f01a9bd3ab5ca71ff4906e631114009ba76c7fc9116003f6f1bfa583deb3ae30"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2108.09466",
    "kind": "arxiv",
    "version": 1
  }
}