Pith Number

pith:VVRKKNEB

pith:2011:VVRKKNEBJLCUVETEGO6RYCIJH2

not attested not anchored not stored refs pending

Regge gravity from spinfoams

Claudio Perini, Elena Magliaro

arxiv:1105.0216 v7 · 2011-05-01 · 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{VVRKKNEBJLCUVETEGO6RYCIJH2}

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	2026-05-18T02:28:12.416061Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ad62a534814ac54a926433bd1c09093ea83138cf7841ed32e566d8259ec7d43a

Aliases

arxiv: 1105.0216 · arxiv_version: 1105.0216v7 · doi: 10.48550/arxiv.1105.0216 · pith_short_12: VVRKKNEBJLCU · pith_short_16: VVRKKNEBJLCUVETE · pith_short_8: VVRKKNEB

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/VVRKKNEBJLCUVETEGO6RYCIJH2 \
  | 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: ad62a534814ac54a926433bd1c09093ea83138cf7841ed32e566d8259ec7d43a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "61106f11d8e528536da2b2ae19179be7da7c9847c271ec08d59916767829f253",
    "cross_cats_sorted": [
      "hep-th"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2011-05-01T23:05:55Z",
    "title_canon_sha256": "367604a72065c0d657e7b2bd36cf35e5ac69384e155d26743cd87f29db60b3f6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1105.0216",
    "kind": "arxiv",
    "version": 7
  }
}