Pith Number

pith:EQE6R7F2

pith:2009:EQE6R7F2NAF7UGBYLECJFQEDBH

not attested not anchored not stored refs pending

Barbero-Immirzi field in canonical formalism of pure gravity

Gianluca Calcagni, Simone Mercuri

arxiv:0902.0957 v2 · 2009-02-05 · 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{EQE6R7F2NAF7UGBYLECJFQEDBH}

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

Natural Metric-Affine Inflation: Reloaded

Receipt and verification

First computed	2026-07-04T15:46:44.780129Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2409e8fcba680bfa1838590492c08309c44d8b6c3249387d314c3d2a206920a1

Aliases

arxiv: 0902.0957 · arxiv_version: 0902.0957v2 · doi: 10.48550/arxiv.0902.0957 · pith_short_12: EQE6R7F2NAF7 · pith_short_16: EQE6R7F2NAF7UGBY · pith_short_8: EQE6R7F2

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/EQE6R7F2NAF7UGBYLECJFQEDBH \
  | 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: 2409e8fcba680bfa1838590492c08309c44d8b6c3249387d314c3d2a206920a1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b29035735fe0519397d57e10aa149e703e13b8c1afee9d6b01bc172704682884",
    "cross_cats_sorted": [
      "hep-th"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2009-02-05T18:38:06Z",
    "title_canon_sha256": "8f486813b255a0f3eb8f44db13fe97dfb28af903066227792a9c17bc11c9894f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0902.0957",
    "kind": "arxiv",
    "version": 2
  }
}