Pith Number

pith:2JUKB6GG

pith:2002:2JUKB6GGIJOEYGUZTUFXSRRORN

not attested not anchored not stored refs pending

Diffeomorphisms and spin foam models

David Louapre (ENS-Lyon), Laurent Freidel (ENS-Lyon, PI)

arxiv:gr-qc/0212001 v2 · 2002-11-29 · 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{2JUKB6GGIJOEYGUZTUFXSRRORN}

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.

Cited by

1 paper in Pith

Quantum geometry from higher gauge theory

Receipt and verification

First computed	2026-07-04T16:33:48.492354Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d268a0f8c6425c4c1a999d0b79462e8b5edd7d57e383ba6a1d739250d84b5dfc

Aliases

arxiv: gr-qc/0212001 · arxiv_version: gr-qc/0212001v2 · doi: 10.48550/arxiv.gr-qc/0212001 · pith_short_12: 2JUKB6GGIJOE · pith_short_16: 2JUKB6GGIJOEYGUZ · pith_short_8: 2JUKB6GG

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/2JUKB6GGIJOEYGUZTUFXSRRORN \
  | 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: d268a0f8c6425c4c1a999d0b79462e8b5edd7d57e383ba6a1d739250d84b5dfc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "517c3785d11363fc150467d9ccfa7e6a97d3a39544883aae8fbd213b41af3c04",
    "cross_cats_sorted": [
      "hep-th"
    ],
    "license": "",
    "primary_cat": "gr-qc",
    "submitted_at": "2002-11-29T23:38:40Z",
    "title_canon_sha256": "70d79872bcbf4c5ae21eb73ee9445ff8bf111012c5b7870c1e85f3e77a25d7b3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "gr-qc/0212001",
    "kind": "arxiv",
    "version": 2
  }
}