Pith Number

pith:MXTWM4VX

pith:2013:MXTWM4VXB453Q5XM76EFLSUUHE

not attested not anchored not stored refs pending

Wahlquist's metric versus an approximate solution with the same equation of state

Alfred Molina, Eduardo Ruiz, Javier E. Cuch\'i, Jes\'us Mart\'in

arxiv:1301.4962 v2 · 2013-01-21 · 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{MXTWM4VXB453Q5XM76EFLSUUHE}

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.

Receipt and verification

First computed	2026-05-18T01:52:04.993731Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

65e76672b70f3bb876ecff8855ca9439115e082ad54000d170c8e26458736b7d

Aliases

arxiv: 1301.4962 · arxiv_version: 1301.4962v2 · doi: 10.48550/arxiv.1301.4962 · pith_short_12: MXTWM4VXB453 · pith_short_16: MXTWM4VXB453Q5XM · pith_short_8: MXTWM4VX

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/MXTWM4VXB453Q5XM76EFLSUUHE \
  | 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: 65e76672b70f3bb876ecff8855ca9439115e082ad54000d170c8e26458736b7d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8c13d9be0efab266857d1db7d2ecc4804b226135161f16fbd57da3e58ca1d8d6",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2013-01-21T19:02:53Z",
    "title_canon_sha256": "e1fd91a09b3f711421d275cbfb842469abfb6f467977f10900094434583fb052"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1301.4962",
    "kind": "arxiv",
    "version": 2
  }
}