Pith Number

pith:LAOUSZHP

pith:1997:LAOUSZHPZNN2CG3PKF2JZVO5MF

not attested not anchored not stored refs pending

Combinatorial space from loop quantum gravity

Jose A. Zapata

arxiv:gr-qc/9703038 v2 · 1997-03-14 · gr-qc · hep-lat · 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{LAOUSZHPZNN2CG3PKF2JZVO5MF}

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	2026-05-18T01:39:19.078503Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

581d4964efcb5ba11b6f51749cd5dd617b41fefaa985d564c2355cbcf100a5b6

Aliases

arxiv: gr-qc/9703038 · arxiv_version: gr-qc/9703038v2 · doi: 10.48550/arxiv.gr-qc/9703038 · pith_short_12: LAOUSZHPZNN2 · pith_short_16: LAOUSZHPZNN2CG3P · pith_short_8: LAOUSZHP

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/LAOUSZHPZNN2CG3PKF2JZVO5MF \
  | 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: 581d4964efcb5ba11b6f51749cd5dd617b41fefaa985d564c2355cbcf100a5b6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9eb982cac51d45d59b4a16fa2af6501123f0d24b30775d67ed39bfbd1d9150b0",
    "cross_cats_sorted": [
      "hep-lat",
      "hep-th"
    ],
    "license": "",
    "primary_cat": "gr-qc",
    "submitted_at": "1997-03-14T22:25:01Z",
    "title_canon_sha256": "2526bd389b8dc3b004bb1eb1f384ff4870338e4524c59874dec7620ffe138826"
  },
  "schema_version": "1.0",
  "source": {
    "id": "gr-qc/9703038",
    "kind": "arxiv",
    "version": 2
  }
}