Pith Number

pith:PC4CE2AB

pith:1998:PC4CE2ABVTXB4UBYBEY4VISKOH

not attested not anchored not stored refs pending

Curvature-based Hyperbolic Systems for General Relativity

Arlen Anderson, James W. York, Jr., Yvonne Choquet-Bruhat

arxiv:gr-qc/9802027 v2 · 1998-02-12 · 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{PC4CE2ABVTXB4UBYBEY4VISKOH}

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	2026-05-18T03:47:41.592209Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

78b8226801acee1e50380931caa24a71cc705bd79cb336185c398f5f66f6b2a9

Aliases

arxiv: gr-qc/9802027 · arxiv_version: gr-qc/9802027v2 · doi: 10.48550/arxiv.gr-qc/9802027 · pith_short_12: PC4CE2ABVTXB · pith_short_16: PC4CE2ABVTXB4UBY · pith_short_8: PC4CE2AB

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/PC4CE2ABVTXB4UBYBEY4VISKOH \
  | 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: 78b8226801acee1e50380931caa24a71cc705bd79cb336185c398f5f66f6b2a9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "70965ed058f03d3992cde80040762bee65e7179fe217628b5f46bc131a957a0b",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "gr-qc",
    "submitted_at": "1998-02-12T17:29:38Z",
    "title_canon_sha256": "25390818fcac763501de436abe3d3377f88a398263202f66742e5041e7c122fc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "gr-qc/9802027",
    "kind": "arxiv",
    "version": 2
  }
}