Pith Number

pith:WMPDOVLZ

pith:2011:WMPDOVLZTINQQRHRSMQKVSF2JB

not attested not anchored not stored refs pending

Quadrupolar gravitational radiation as a test-bed for f(R)-gravity

Mariafelicia De Laurentis, Salvatore Capozziello

arxiv:1104.1942 v1 · 2011-04-11 · gr-qc · astro-ph.HE · 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{WMPDOVLZTINQQRHRSMQKVSF2JB}

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	2026-05-18T02:37:52.374292Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b31e3755799a1b0844f19320aac8ba48452f28d5476a1cdbcc89a6daa49a8140

Aliases

arxiv: 1104.1942 · arxiv_version: 1104.1942v1 · doi: 10.48550/arxiv.1104.1942 · pith_short_12: WMPDOVLZTINQ · pith_short_16: WMPDOVLZTINQQRHR · pith_short_8: WMPDOVLZ

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/WMPDOVLZTINQQRHRSMQKVSF2JB \
  | 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: b31e3755799a1b0844f19320aac8ba48452f28d5476a1cdbcc89a6daa49a8140

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "37cc6d71af2c18213a840fd1ec6b3fecc757884eed6f53514e9cc06d91ca6baa",
    "cross_cats_sorted": [
      "astro-ph.HE",
      "hep-th"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2011-04-11T13:32:05Z",
    "title_canon_sha256": "bb1e64f3126895cb8ec19cd4516bec9aa23d82f81bed159d126c63396da9ab82"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1104.1942",
    "kind": "arxiv",
    "version": 1
  }
}