Pith Number

pith:SGEULGMH

pith:2010:SGEULGMHRVOHNM4YAQNB5XMISB

not attested not anchored not stored refs pending

Gravitational Perfect Fluid Collapse in f(R) Gravity

H. Rizwana Kausar, M. Sharif

arxiv:1007.2852 v1 · 2010-06-18 · 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{SGEULGMHRVOHNM4YAQNB5XMISB}

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	2026-05-18T04:31:40.979883Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

91894599878d5c76b398041a1edd889072904d2f282dea1ee6d516e3cc7521f5

Aliases

arxiv: 1007.2852 · arxiv_version: 1007.2852v1 · doi: 10.48550/arxiv.1007.2852 · pith_short_12: SGEULGMHRVOH · pith_short_16: SGEULGMHRVOHNM4Y · pith_short_8: SGEULGMH

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/SGEULGMHRVOHNM4YAQNB5XMISB \
  | 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: 91894599878d5c76b398041a1edd889072904d2f282dea1ee6d516e3cc7521f5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bf23af4c13c0d371e2be36c62962bec9d1c00e5169aa78ed01ff7e4360b680d2",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2010-06-18T02:27:48Z",
    "title_canon_sha256": "d0b56b1ec7f81da735f30f0b1736c4762d478e772aeaea0cb676aa89008c92b7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1007.2852",
    "kind": "arxiv",
    "version": 1
  }
}