Pith Number

pith:XGLBKMV2

pith:2006:XGLBKMV2PJ57DMDGVDK3UKJFE6

not attested not anchored not stored refs pending

Cosmological viability of f(R)-gravity as an ideal fluid and its compatibility with a matter dominated phase

A. Troisi, S. Capozziello, S.D. Odintsov, S. Nojiri

arxiv:astro-ph/0604431 v3 · 2006-04-20 · astro-ph · hep-th

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{XGLBKMV2PJ57DMDGVDK3UKJFE6}

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

Modified Gravity and Cosmology

Frame invariant diffusive formulation of scalar-tensor gravity

Receipt and verification

First computed	2026-07-04T15:16:45.771103Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b9961532ba7a7bf1b066a8d5ba2925278afdfb134113162e6291edded05bb929

Aliases

arxiv: astro-ph/0604431 · arxiv_version: astro-ph/0604431v3 · doi: 10.48550/arxiv.astro-ph/0604431 · pith_short_12: XGLBKMV2PJ57 · pith_short_16: XGLBKMV2PJ57DMDG · pith_short_8: XGLBKMV2

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/XGLBKMV2PJ57DMDGVDK3UKJFE6 \
  | 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: b9961532ba7a7bf1b066a8d5ba2925278afdfb134113162e6291edded05bb929

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6ee07a33d7a85f614daf311dd9aab6cfefcad8d64b4154de27d96f8461cdc1e4",
    "cross_cats_sorted": [
      "hep-th"
    ],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2006-04-20T14:30:49Z",
    "title_canon_sha256": "b7d8e2c9e6233be67cdb332fe957c1c9c212a092545179cfb7ecf1b721c6ded8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0604431",
    "kind": "arxiv",
    "version": 3
  }
}