Pith Number

pith:3VCJJZZK

pith:2008:3VCJJZZKLBLMSTGILZEIKPDGL4

not attested not anchored not stored refs pending

Stability Conditions For a Noncommutative Scalar Field Coupled to Gravity

Carlos A. D. Zarro, Orfeu Bertolami

arxiv:0812.4607 v2 · 2008-12-25 · hep-th

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{3VCJJZZKLBLMSTGILZEIKPDGL4}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more

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	2026-05-18T04:16:32.465860Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

dd4494e72a5856c94cc85e48853c665f3a404abb3c057a0f01322246751740af

Aliases

arxiv: 0812.4607 · arxiv_version: 0812.4607v2 · doi: 10.48550/arxiv.0812.4607 · pith_short_12: 3VCJJZZKLBLM · pith_short_16: 3VCJJZZKLBLMSTGI · pith_short_8: 3VCJJZZK

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/3VCJJZZKLBLMSTGILZEIKPDGL4 \
  | 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: dd4494e72a5856c94cc85e48853c665f3a404abb3c057a0f01322246751740af

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b5ef60147af3d06508a03c46a859e423d8503fff7086d2c259e6723079e64507",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "hep-th",
    "submitted_at": "2008-12-25T13:24:12Z",
    "title_canon_sha256": "a6afd8c87c12fae7e022b16ed617ddcd936839de24e6ad814c59ad374b71f4b1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0812.4607",
    "kind": "arxiv",
    "version": 2
  }
}