Pith Number

pith:GF2C3MRU

pith:2013:GF2C3MRUERSN7G5FN6PYWN4QFM

not attested not anchored not stored refs pending

Conformally reducible 1+3 spacetimes

Aidan J Keane, Brian O J Tupper, Jaume Carot

arxiv:1308.1685 v1 · 2013-08-07 · gr-qc · math-ph · math.MP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{GF2C3MRUERSN7G5FN6PYWN4QFM}

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	2026-05-18T03:16:28.039616Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

31742db2342464df9ba56f9f8b37902b0ad55f5f22013071c55ec90f4ca2664f

Aliases

arxiv: 1308.1685 · arxiv_version: 1308.1685v1 · doi: 10.48550/arxiv.1308.1685 · pith_short_12: GF2C3MRUERSN · pith_short_16: GF2C3MRUERSN7G5F · pith_short_8: GF2C3MRU

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/GF2C3MRUERSN7G5FN6PYWN4QFM \
  | 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: 31742db2342464df9ba56f9f8b37902b0ad55f5f22013071c55ec90f4ca2664f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "887b2d5ee77cadc6f912a3875556535d565ef173e7250674464deb41afd4b267",
    "cross_cats_sorted": [
      "math-ph",
      "math.MP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2013-08-07T20:01:17Z",
    "title_canon_sha256": "2a1446b7cd3bbb809e70c8b2b844ad29c6fc94a095ea644c5ac0c68ca24ac9f9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1308.1685",
    "kind": "arxiv",
    "version": 1
  }
}