Pith Number

pith:SBF4P5DB

pith:1999:SBF4P5DBQPUMLD4IBJ5THVSMFE

not attested not anchored not stored refs pending

The Wahlquist metric cannot describe an isolated rotating body

Gyula Fodor, Mattias Marklund, Michael Bradley, Zolt\'an Perj\'es

arxiv:gr-qc/9910001 v1 · 1999-10-01 · 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{SBF4P5DBQPUMLD4IBJ5THVSMFE}

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	2026-07-04T16:13:54.779902Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

904bc7f46183e8c58f880a7b33d64c29185e790902c8aeaff097303995cda9d7

Aliases

arxiv: gr-qc/9910001 · arxiv_version: gr-qc/9910001v1 · doi: 10.48550/arxiv.gr-qc/9910001 · pith_short_12: SBF4P5DBQPUM · pith_short_16: SBF4P5DBQPUMLD4I · pith_short_8: SBF4P5DB

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/SBF4P5DBQPUMLD4IBJ5THVSMFE \
  | 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: 904bc7f46183e8c58f880a7b33d64c29185e790902c8aeaff097303995cda9d7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "876fe43fc149a52e145e6517025bb979fb946e9b613cb3c65ad0446ad75f9278",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "gr-qc",
    "submitted_at": "1999-10-01T12:42:51Z",
    "title_canon_sha256": "1894686ec9870a902b995eb839437a43c658cfe4a36afcd23e6863c125669a6c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "gr-qc/9910001",
    "kind": "arxiv",
    "version": 1
  }
}