Pith Number

pith:KN4WVMAP

pith:2002:KN4WVMAPGAECKGGN2T4JORCBY3

not attested not anchored not stored refs pending

Geometry and topology of singularities in spherical dust collapse

Brien C. Nolan, Filipe C. Mena

arxiv:gr-qc/0203078 v1 · 2002-03-22 · 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{KN4WVMAPGAECKGGN2T4JORCBY3}

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	2026-05-18T04:17:53.051621Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

53796ab00f30082518cdd4f8974441c6c8e2992a6bb8b1f73e0aee47187b92b2

Aliases

arxiv: gr-qc/0203078 · arxiv_version: gr-qc/0203078v1 · doi: 10.48550/arxiv.gr-qc/0203078 · pith_short_12: KN4WVMAPGAEC · pith_short_16: KN4WVMAPGAECKGGN · pith_short_8: KN4WVMAP

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/KN4WVMAPGAECKGGN2T4JORCBY3 \
  | 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: 53796ab00f30082518cdd4f8974441c6c8e2992a6bb8b1f73e0aee47187b92b2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3c6f6f9a9cf21f1b0a5c311e4dd37098001baa5f9d24da13df4bed17aa346fb6",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "gr-qc",
    "submitted_at": "2002-03-22T17:22:42Z",
    "title_canon_sha256": "7db5f597f339fa347bdda7bef6cdbab717478f13d015c87219ee1a8e71b50a0c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "gr-qc/0203078",
    "kind": "arxiv",
    "version": 1
  }
}