Pith Number

pith:JWLBUN63

pith:2012:JWLBUN63QLETO7KWNDAZM7GUJX

not attested not anchored not stored refs pending

Hamiltonian dynamics and Noether symmetries in Extended Gravity Cosmology

Mariafelicia De Laurentis, Salvatore Capozziello, Sergei D. Odintsov

arxiv:1206.4842 v1 · 2012-06-21 · 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{JWLBUN63QLETO7KWNDAZM7GUJX}

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	2026-05-18T01:56:49.660381Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4d961a37db82c9377d5668c1967cd44ddac4fe55642dc7cac6d7a2430a3ecb57

Aliases

arxiv: 1206.4842 · arxiv_version: 1206.4842v1 · doi: 10.48550/arxiv.1206.4842 · pith_short_12: JWLBUN63QLET · pith_short_16: JWLBUN63QLETO7KW · pith_short_8: JWLBUN63

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/JWLBUN63QLETO7KWNDAZM7GUJX \
  | 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: 4d961a37db82c9377d5668c1967cd44ddac4fe55642dc7cac6d7a2430a3ecb57

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5966e66312365c8983f2e280258932e70a1ad97da8dff88b21b50fc7fbd2fe5d",
    "cross_cats_sorted": [
      "astro-ph.CO",
      "hep-th"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2012-06-21T11:39:25Z",
    "title_canon_sha256": "3690650acafba6e460091f358900a00464a97f23e79fd8b34ef9974915a53524"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1206.4842",
    "kind": "arxiv",
    "version": 1
  }
}