Pith Number

pith:JLO263KZ

pith:2012:JLO263KZIKPGUK54SRGDQ74YZL

not attested not anchored not stored refs pending

Spinors and Twistors in Loop Gravity and Spin Foams

Johannes Tambornino, Maite Dupuis, Simone Speziale

arxiv:1201.2120 v2 · 2012-01-10 · 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{JLO263KZIKPGUK54SRGDQ74YZL}

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

Area bounds and gauge fixing: alternative canonical variables for loop gravity

Receipt and verification

First computed	2026-05-18T03:57:52.912946Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4addaf6d59429e6a2bbc944c387f98cadfe1a9ba77dd2755db62a0df46cb96ba

Aliases

arxiv: 1201.2120 · arxiv_version: 1201.2120v2 · doi: 10.48550/arxiv.1201.2120 · pith_short_12: JLO263KZIKPG · pith_short_16: JLO263KZIKPGUK54 · pith_short_8: JLO263KZ

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/JLO263KZIKPGUK54SRGDQ74YZL \
  | 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: 4addaf6d59429e6a2bbc944c387f98cadfe1a9ba77dd2755db62a0df46cb96ba

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7b81d6d3f1a396b4b940b3affa696c7816a27b77433c640f9837e0d52a1f296e",
    "cross_cats_sorted": [
      "hep-th"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2012-01-10T17:24:18Z",
    "title_canon_sha256": "09737ebb6bdaf01e960efb62851c1767a10e5f0020407b2d722b8c1d76025d8d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1201.2120",
    "kind": "arxiv",
    "version": 2
  }
}