Pith Number

pith:WECYP2S3

pith:1997:WECYP2S35MFACWB4XX62236F6M

not attested not anchored not stored refs pending

Hyperbolic Equations for Vacuum Gravity Using Special Orthonormal Frames

Frank B. Estabrook, Hugo D. Wahlquist (JPL, Pasadena), R. Steve Robinson

arxiv:gr-qc/9703072 v3 · 1997-03-25 · 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{WECYP2S35MFACWB4XX62236F6M}

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

Hyperbolicity analysis of the linearised 3+1 formulation in the Teleparallel Equivalent of General Relativity

Receipt and verification

First computed	2026-07-04T16:04:36.814471Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b10587ea5beb0a01583cbdfdad6fc5f32c55658648bdef19d7591464da4b5415

Aliases

arxiv: gr-qc/9703072 · arxiv_version: gr-qc/9703072v3 · doi: 10.48550/arxiv.gr-qc/9703072 · pith_short_12: WECYP2S35MFA · pith_short_16: WECYP2S35MFACWB4 · pith_short_8: WECYP2S3

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/WECYP2S35MFACWB4XX62236F6M \
  | 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: b10587ea5beb0a01583cbdfdad6fc5f32c55658648bdef19d7591464da4b5415

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "285ae3c1eec24d5ac3b3244bf6330f57a54bbdccffaf765d0080b6cd09b07810",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "gr-qc",
    "submitted_at": "1997-03-25T19:28:51Z",
    "title_canon_sha256": "e2c45235ceb016eadc05e26cc7e552b3ce3b0fa42f564a00bac675affc0095a5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "gr-qc/9703072",
    "kind": "arxiv",
    "version": 3
  }
}