Pith Number

pith:K74ADTNI

pith:2013:K74ADTNIGI5EOF6V7QNMVAMDDW

not attested not anchored not stored refs pending

Type III and N universal spacetimes

Alena Pravdova, Sigbj{\o}rn Hervik, Vojtech Pravda

arxiv:1311.0234 v2 · 2013-11-01 · gr-qc · hep-th

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{K74ADTNIGI5EOF6V7QNMVAMDDW}

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	2026-05-18T02:40:02.167259Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

57f801cda8323a4717d5fc1aca81831d903199108d631fc27eec0f972ba7add2

Aliases

arxiv: 1311.0234 · arxiv_version: 1311.0234v2 · doi: 10.48550/arxiv.1311.0234 · pith_short_12: K74ADTNIGI5E · pith_short_16: K74ADTNIGI5EOF6V · pith_short_8: K74ADTNI

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/K74ADTNIGI5EOF6V7QNMVAMDDW \
  | 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: 57f801cda8323a4717d5fc1aca81831d903199108d631fc27eec0f972ba7add2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "610eef2a2974c95911212e5185ddb175cee062e6234c135325e8df0a60681c56",
    "cross_cats_sorted": [
      "hep-th"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2013-11-01T17:36:49Z",
    "title_canon_sha256": "ac6698ec8c085ccde6e4d0efdcbbbe55e4c1d14ae52565e53dfc47849f660478"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1311.0234",
    "kind": "arxiv",
    "version": 2
  }
}