Pith Number

pith:O5LKWUX7

pith:2002:O5LKWUX7R67VMEPXBLBAECUBCG

not attested not anchored not stored refs pending

An Invariant Action for Noncommutative Gravity in Four-Dimensions

A. H. Chamseddine (CAMS/AUB)

arxiv:hep-th/0202137 v3 · 2002-02-20 · 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{O5LKWUX7R67VMEPXBLBAECUBCG}

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

Noncommutative Gauge Theories and Gravity

Receipt and verification

First computed	2026-05-18T01:38:49.915862Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7756ab52ff8fbf5611f70ac2020a8111bf6db6fb178c46cd6c6ae7c8e37286ba

Aliases

arxiv: hep-th/0202137 · arxiv_version: hep-th/0202137v3 · doi: 10.48550/arxiv.hep-th/0202137 · pith_short_12: O5LKWUX7R67V · pith_short_16: O5LKWUX7R67VMEPX · pith_short_8: O5LKWUX7

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/O5LKWUX7R67VMEPXBLBAECUBCG \
  | 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: 7756ab52ff8fbf5611f70ac2020a8111bf6db6fb178c46cd6c6ae7c8e37286ba

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7f5ff30e2b5a64df9e25e12099f7cac8609d821a47c518755b7169bab8494683",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "hep-th",
    "submitted_at": "2002-02-20T15:42:47Z",
    "title_canon_sha256": "24ce5f72cfc407ee262191e5900300d8124b221dffbd48112dbd016b03ab2203"
  },
  "schema_version": "1.0",
  "source": {
    "id": "hep-th/0202137",
    "kind": "arxiv",
    "version": 3
  }
}