Pith Number

pith:SP7C44JF

pith:2012:SP7C44JFN2IOL244RAWW5A56G2

not attested not anchored not stored refs pending

Metric-Affine Formalism of Higher Derivative Scalar Fields in Cosmology

Mingzhe Li, Xiulian Wang

arxiv:1205.0841 v1 · 2012-05-04 · gr-qc · astro-ph.CO · 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{SP7C44JFN2IOL244RAWW5A56G2}

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	2026-05-18T01:57:38.191203Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

93fe2e71256e90e5eb9c882d6e83be36814c13167f1e30a52be05d514e933ba9

Aliases

arxiv: 1205.0841 · arxiv_version: 1205.0841v1 · doi: 10.48550/arxiv.1205.0841 · pith_short_12: SP7C44JFN2IO · pith_short_16: SP7C44JFN2IOL244 · pith_short_8: SP7C44JF

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/SP7C44JFN2IOL244RAWW5A56G2 \
  | 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: 93fe2e71256e90e5eb9c882d6e83be36814c13167f1e30a52be05d514e933ba9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8c8ceea4372a130663cbdfed1a4abf43e10012f0342fe1bd9caa3161083a7a92",
    "cross_cats_sorted": [
      "astro-ph.CO",
      "hep-th"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2012-05-04T01:56:42Z",
    "title_canon_sha256": "9740a15022df9999c08759cac79a1bac8cb989033706b2a95d4c8b8cd6a6000d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1205.0841",
    "kind": "arxiv",
    "version": 1
  }
}