Pith Number

pith:VYDJRPQJ

pith:2013:VYDJRPQJILI2Z2QIEU3V4PLUFQ

not attested not anchored not stored refs pending

Noether symmetries in extended gravity quantum cosmology

Mariafelicia De Laurentis, Salvatore Capozziello

arxiv:1308.1208 v1 · 2013-08-06 · 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{VYDJRPQJILI2Z2QIEU3V4PLUFQ}

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	2026-05-18T03:16:39.501325Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ae0698be0942d1acea0825375e3d742c174cb6f907ffbf8010a657c71672aaac

Aliases

arxiv: 1308.1208 · arxiv_version: 1308.1208v1 · doi: 10.48550/arxiv.1308.1208 · pith_short_12: VYDJRPQJILI2 · pith_short_16: VYDJRPQJILI2Z2QI · pith_short_8: VYDJRPQJ

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/VYDJRPQJILI2Z2QIEU3V4PLUFQ \
  | 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: ae0698be0942d1acea0825375e3d742c174cb6f907ffbf8010a657c71672aaac

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e75e8a5febf578981221bc2c1feffb0ec081acab6a1041dd0facbfd364faa994",
    "cross_cats_sorted": [
      "astro-ph.CO",
      "hep-th"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2013-08-06T08:51:58Z",
    "title_canon_sha256": "9733140ee77ed7a6951e739c443d8f72dafb2dc95e26e0a4101ded63d25b4192"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1308.1208",
    "kind": "arxiv",
    "version": 1
  }
}