Pith Number

pith:U6SSV3OA

pith:2025:U6SSV3OARYJTLOAL7LSKTTCER5

not attested not anchored not stored refs pending

Comparative Analysis of Perturbed $f(R)$ Gravity and Perturbed Rastall Gravity Models in Describing Cosmic Evolution from Early to Late Universe Relative to the $\Lambda$CDM Model

Amin Salehi, Hadis Mousavi, Muhammad Yarahmadi

arxiv:2501.06614 v1 · 2025-01-11 · 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{U6SSV3OARYJTLOAL7LSKTTCER5}

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	2026-07-05T10:00:06.137214Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a7a52aedc08e1335b80bfae4a9cc448f72f35156121cde74bbc5365e4645e2d5

Aliases

arxiv: 2501.06614 · arxiv_version: 2501.06614v1 · doi: 10.48550/arxiv.2501.06614 · pith_short_12: U6SSV3OARYJT · pith_short_16: U6SSV3OARYJTLOAL · pith_short_8: U6SSV3OA

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/U6SSV3OARYJTLOAL7LSKTTCER5 \
  | 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: a7a52aedc08e1335b80bfae4a9cc448f72f35156121cde74bbc5365e4645e2d5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8003b0421c0b1b0f6399829030e79d2e54524e62fa5079c41f101160f151a763",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2025-01-11T18:35:38Z",
    "title_canon_sha256": "0cdce606740d1d03168d8098f3d1f9e0f4baaf4bc6744cb31a1a75834f567a2c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2501.06614",
    "kind": "arxiv",
    "version": 1
  }
}