Pith Number

pith:RHT5GDRV

pith:2025:RHT5GDRVKFW27U47Z26XD7JICV

not attested not anchored not stored refs pending

Preventing Curvature Singularities in $f(R)$ Dark Energy Models

Nehla Shobcha, Norma Sidik Risdianto, Romy Hanang Setya Budhi

arxiv:2508.20430 v2 · 2025-08-28 · 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{RHT5GDRVKFW27U47Z26XD7JICV}

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	2026-07-05T12:04:40.264607Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

89e7d30e35516dafd39fcebd71fd281540fc1d001793d73c7a6a16c40f947023

Aliases

arxiv: 2508.20430 · arxiv_version: 2508.20430v2 · doi: 10.48550/arxiv.2508.20430 · pith_short_12: RHT5GDRVKFW2 · pith_short_16: RHT5GDRVKFW27U47 · pith_short_8: RHT5GDRV

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/RHT5GDRVKFW27U47Z26XD7JICV \
  | 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: 89e7d30e35516dafd39fcebd71fd281540fc1d001793d73c7a6a16c40f947023

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "155ac79b1e21d8e11e0ab55d6251ebf4b9d0e4fa16d5d04269f42f0d5521839f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2025-08-28T05:04:01Z",
    "title_canon_sha256": "4e62e5cb5a9f27a2778e5b2b022d8aeba22974d6a36603c92f941cf93b618ec4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2508.20430",
    "kind": "arxiv",
    "version": 2
  }
}