Pith Number

pith:LJKD26EI

pith:2012:LJKD26EIT23WE6NSGKAAENVJMX

not attested not anchored not stored refs pending

Higher derivative theories with constraints : Exorcising Ostrogradski's Ghost

Andrew J. Tolley, Eugene A. Lim, Matteo Fasiello, Tai-jun Chen

arxiv:1209.0583 v4 · 2012-09-04 · hep-th · astro-ph.CO · gr-qc · math-ph · math.MP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{LJKD26EIT23WE6NSGKAAENVJMX}

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

Testing General Relativity with Present and Future Astrophysical Observations

Receipt and verification

First computed	2026-05-18T03:22:06.060810Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5a543d78889eb76279b232800236a965c46952a1879abf26cc479515a5ca3ad4

Aliases

arxiv: 1209.0583 · arxiv_version: 1209.0583v4 · doi: 10.48550/arxiv.1209.0583 · pith_short_12: LJKD26EIT23W · pith_short_16: LJKD26EIT23WE6NS · pith_short_8: LJKD26EI

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/LJKD26EIT23WE6NSGKAAENVJMX \
  | 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: 5a543d78889eb76279b232800236a965c46952a1879abf26cc479515a5ca3ad4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7d81afc012f314f90fcdbf44a0bd6e7d5b1e3990631066f00e38e191f811a0cb",
    "cross_cats_sorted": [
      "astro-ph.CO",
      "gr-qc",
      "math-ph",
      "math.MP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "hep-th",
    "submitted_at": "2012-09-04T09:56:28Z",
    "title_canon_sha256": "eee9f2261e958b64ab91ae37ac3e0e95fbf5501b58edb8f778570aec80f76249"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1209.0583",
    "kind": "arxiv",
    "version": 4
  }
}