Pith Number

pith:QQQ3NXE4

pith:2018:QQQ3NXE4WJ2X6P2PAN75K34JYZ

not attested not anchored not stored refs pending

Non-expanding Plebanski-Demianski space-times

Jerry B. Griffiths, Jiri Podolsky, Ondrej Hruska

arxiv:1804.01519 v1 · 2018-04-04 · 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{QQQ3NXE4WJ2X6P2PAN75K34JYZ}

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

Quasi-topological gravity for 4-dimensional Taub-NUT, near-horizon extreme Kerr, and swirling symmetries

Receipt and verification

First computed	2026-07-05T03:03:23.574551Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8421b6dc9cb2757f3f4f037fd56f89c67541ca0f9c420366da063cebe7507f85

Aliases

arxiv: 1804.01519 · arxiv_version: 1804.01519v1 · doi: 10.48550/arxiv.1804.01519 · pith_short_12: QQQ3NXE4WJ2X · pith_short_16: QQQ3NXE4WJ2X6P2P · pith_short_8: QQQ3NXE4

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/QQQ3NXE4WJ2X6P2PAN75K34JYZ \
  | 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: 8421b6dc9cb2757f3f4f037fd56f89c67541ca0f9c420366da063cebe7507f85

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6537a288d18c0c21b9c54aa8373b832e642a20bebb35fd3c11474c9e4c744241",
    "cross_cats_sorted": [
      "hep-th"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2018-04-04T17:45:02Z",
    "title_canon_sha256": "ff3868d6ab0d64344b79108c6580f1acac079afd46a6f7789d56964dd0c59a8d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1804.01519",
    "kind": "arxiv",
    "version": 1
  }
}