Pith Number

pith:WY3U3IUJ

pith:2011:WY3U3IUJZ2BEYV4H63N7QDLIIF

not attested not anchored not stored refs pending

Some static spherically symmetric interior solutions of $f(R)$ gravity

Ali Shojai, Fatimah Shojai

arxiv:1109.2190 v1 · 2011-09-10 · gr-qc

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{WY3U3IUJZ2BEYV4H63N7QDLIIF}

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

Nonstatic Reissner-Nordstr\"om metric in the perturbative $f(R)$ theory: Embedding in the background of the FLRW cosmology, uniqueness of solutions, the TOV equation

Receipt and verification

First computed	2026-05-18T02:00:36.807205Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b6374da289ce824c5787f6dbf80d68417316834b5aea061fc3dbb24d1ebd21a4

Aliases

arxiv: 1109.2190 · arxiv_version: 1109.2190v1 · doi: 10.48550/arxiv.1109.2190 · pith_short_12: WY3U3IUJZ2BE · pith_short_16: WY3U3IUJZ2BEYV4H · pith_short_8: WY3U3IUJ

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/WY3U3IUJZ2BEYV4H63N7QDLIIF \
  | 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: b6374da289ce824c5787f6dbf80d68417316834b5aea061fc3dbb24d1ebd21a4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a514e80e1e0525598a67a3f019049f17d21fb2a6338c82d7b634604e96d91c90",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2011-09-10T03:44:28Z",
    "title_canon_sha256": "efe29f8a09d91d9ea1010ddd520aa22364ce3508c172227ba75e514abd496539"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1109.2190",
    "kind": "arxiv",
    "version": 1
  }
}