Pith Number

pith:5MVORALB

pith:2011:5MVORALBEIDWJV6ZCZ4VCGLFJ2

not attested not anchored not stored refs pending

Can f(R) gravity mimic dark energy with constant equation of state parameter ?

Sanil Unnikrishnan, Shruti Thakur, T. R. Seshadri

arxiv:1106.6353 v2 · 2011-06-30 · astro-ph.CO · 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{5MVORALBEIDWJV6ZCZ4VCGLFJ2}

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	2026-05-18T04:05:27.403216Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

eb2ae88161220764d7d916795119654ea50f27bb39ab752eb69a6fb90eb81643

Aliases

arxiv: 1106.6353 · arxiv_version: 1106.6353v2 · doi: 10.48550/arxiv.1106.6353 · pith_short_12: 5MVORALBEIDW · pith_short_16: 5MVORALBEIDWJV6Z · pith_short_8: 5MVORALB

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/5MVORALBEIDWJV6ZCZ4VCGLFJ2 \
  | 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: eb2ae88161220764d7d916795119654ea50f27bb39ab752eb69a6fb90eb81643

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e5cc30e5421a719554c0fee76f63982d3d6d90c36f62edb2566e151a01673a56",
    "cross_cats_sorted": [
      "gr-qc"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2011-06-30T19:54:29Z",
    "title_canon_sha256": "661ffbaf0af4a7cd15320906d18e8325c0b45a7210db4bf9ee700c7937b16d44"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1106.6353",
    "kind": "arxiv",
    "version": 2
  }
}