Pith Number

pith:NCBQLWBQ

pith:2012:NCBQLWBQCALASJZUWC7RAIFXF4

not attested not anchored not stored refs pending

Constructing Realistic Szekeres Models from Initial and Final Data

Anthony Walters, Charles Hellaby

arxiv:1211.2110 v1 · 2012-11-09 · gr-qc · astro-ph.CO

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{NCBQLWBQCALASJZUWC7RAIFXF4}

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	2026-05-18T01:53:17.523369Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

688305d8301016092734b0bf1020b72f0c1787097e83f811a4229078069dbe44

Aliases

arxiv: 1211.2110 · arxiv_version: 1211.2110v1 · doi: 10.48550/arxiv.1211.2110 · pith_short_12: NCBQLWBQCALA · pith_short_16: NCBQLWBQCALASJZU · pith_short_8: NCBQLWBQ

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/NCBQLWBQCALASJZUWC7RAIFXF4 \
  | 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: 688305d8301016092734b0bf1020b72f0c1787097e83f811a4229078069dbe44

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "62aa6a9f3509dd632775c9455de90a19ce851bb44e5c4126a1d95783789fabe5",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2012-11-09T12:13:37Z",
    "title_canon_sha256": "822b3a02b8037a6ce2ce0b0dee9e623b2065ffd813b4a2e9adb06d0caad49e71"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1211.2110",
    "kind": "arxiv",
    "version": 1
  }
}