Pith Number

pith:X7U2B6R7

pith:2007:X7U2B6R7B3J5WNBQXKKLO32ZGY

not attested not anchored not stored refs pending

Do consistent $F(R)$ models mimic General Relativity plus $\Lambda$?

Richard A. Battye, Stephen A. Appleby

arxiv:0705.3199 v2 · 2007-05-22 · astro-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{X7U2B6R7B3J5WNBQXKKLO32ZGY}

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

3 papers in Pith

Modified Gravity Theories on a Nutshell: Inflation, Bounce and Late-time Evolution

Off-diagonal solutions in Einsteingravity modeling f(R) gravity and dynamical darkenergy vs Lambda CDM cosmology

Modified Gravity and Cosmology

Receipt and verification

First computed	2026-07-04T17:24:57.332296Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bfe9a0fa3f0ed3db3430ba94b76f593635076755e21eacb1baaf225774bc51e0

Aliases

arxiv: 0705.3199 · arxiv_version: 0705.3199v2 · doi: 10.48550/arxiv.0705.3199 · pith_short_12: X7U2B6R7B3J5 · pith_short_16: X7U2B6R7B3J5WNBQ · pith_short_8: X7U2B6R7

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/X7U2B6R7B3J5WNBQXKKLO32ZGY \
  | 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: bfe9a0fa3f0ed3db3430ba94b76f593635076755e21eacb1baaf225774bc51e0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ea41cc260bcc64de56bcfd788fb62b44c64bc1986ec502b9c8c3f36282862e68",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2007-05-22T15:32:59Z",
    "title_canon_sha256": "fdce1d7610de69a23d787a0bb87f6c0685f3775f330bbc32c609feeae59fd4c7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0705.3199",
    "kind": "arxiv",
    "version": 2
  }
}