Pith Number

pith:VC63SGX6

pith:2003:VC63SGX67YNBSCAUJN3U6GQ2IE

not attested not anchored not stored refs pending

Kaigorodov spaces and their Penrose limits

Christophe Patricot

arxiv:hep-th/0302073 v2 · 2003-02-11 · 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{VC63SGX67YNBSCAUJN3U6GQ2IE}

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	2026-05-18T04:35:23.392812Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a8bdb91afefe1a1908144b774f1a1a41132a06c8841654ac9c832ac3c9ea9f45

Aliases

arxiv: hep-th/0302073 · arxiv_version: hep-th/0302073v2 · doi: 10.48550/arxiv.hep-th/0302073 · pith_short_12: VC63SGX67YNB · pith_short_16: VC63SGX67YNBSCAU · pith_short_8: VC63SGX6

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/VC63SGX67YNBSCAUJN3U6GQ2IE \
  | 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: a8bdb91afefe1a1908144b774f1a1a41132a06c8841654ac9c832ac3c9ea9f45

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "098774992f0d9f26edfbc738d99c2238851feee41a1175c870b4d83066dfb044",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "hep-th",
    "submitted_at": "2003-02-11T14:12:35Z",
    "title_canon_sha256": "0fa092c9f3dae6b4cbca917a87517acaab8f01944308e25da15afe480216b5ea"
  },
  "schema_version": "1.0",
  "source": {
    "id": "hep-th/0302073",
    "kind": "arxiv",
    "version": 2
  }
}