Pith Number

pith:L7O3LJUR

pith:2006:L7O3LJUR7WKC2LDFSK4FC2HYJR

not attested not anchored not stored refs pending

Fermions in three-dimensional spinfoam quantum gravity

Winston Fairbairn (CPT)

arxiv:gr-qc/0609040 v2 · 2006-09-12 · gr-qc

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{L7O3LJUR7WKC2LDFSK4FC2HYJR}

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

Hilbert space formalisms for group field theory

Receipt and verification

First computed	2026-07-04T15:22:23.378668Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5fddb5a691fd942d2c6592b85168f84c7d395183ae12f32ce6486c6cead8ffa9

Aliases

arxiv: gr-qc/0609040 · arxiv_version: gr-qc/0609040v2 · doi: 10.48550/arxiv.gr-qc/0609040 · pith_short_12: L7O3LJUR7WKC · pith_short_16: L7O3LJUR7WKC2LDF · pith_short_8: L7O3LJUR

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/L7O3LJUR7WKC2LDFSK4FC2HYJR \
  | 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: 5fddb5a691fd942d2c6592b85168f84c7d395183ae12f32ce6486c6cead8ffa9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7bac90a001e428e8d03fdc7400714e82b1ced5d661016490be75394c2ef308f9",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "gr-qc",
    "submitted_at": "2006-09-12T12:15:59Z",
    "title_canon_sha256": "753d64328e88c23e6f1cb5781ca835bcab2e7295c8c86633daa1870394853f98"
  },
  "schema_version": "1.0",
  "source": {
    "id": "gr-qc/0609040",
    "kind": "arxiv",
    "version": 2
  }
}