Pith Number

pith:D4VXNBB3

pith:2008:D4VXNBB3OJMOLDIHM74XXCDZCB

not attested not anchored not stored refs pending

Dark Matter from R^2-gravity

Jose A. R. Cembranos

arxiv:0809.1653 v1 · 2008-09-10 · hep-ph · astro-ph · 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{D4VXNBB3OJMOLDIHM74XXCDZCB}

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

4 papers in Pith

Effective scalaron--photon interaction in $f(R)$ gravity

On Searches for Gravitational Dark Matter with Quantum Sensors

Scalar-Induced Electromagnetic Radiation: Comparison with Axion-Like Particles and Implications for Modified Gravity

Scalaron dark matter dynamics: effects of Higgs non-minimal coupling to gravity

Receipt and verification

First computed	2026-07-04T15:42:37.245043Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1f2b76843b7258e58d0767f97b887910400d9f83f6fd4dc4fe4486ee2858d7ac

Aliases

arxiv: 0809.1653 · arxiv_version: 0809.1653v1 · doi: 10.48550/arxiv.0809.1653 · pith_short_12: D4VXNBB3OJMO · pith_short_16: D4VXNBB3OJMOLDIH · pith_short_8: D4VXNBB3

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/D4VXNBB3OJMOLDIHM74XXCDZCB \
  | 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: 1f2b76843b7258e58d0767f97b887910400d9f83f6fd4dc4fe4486ee2858d7ac

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4d65f1c3d5eb54ed9e3507d71733f578964c0568d1e54436bf164527fcb261c9",
    "cross_cats_sorted": [
      "astro-ph",
      "gr-qc"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "hep-ph",
    "submitted_at": "2008-09-10T18:42:35Z",
    "title_canon_sha256": "1bbcba4646256e442860d31baf0825019ee85e86fe0f5a1460f92c843076ad78"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0809.1653",
    "kind": "arxiv",
    "version": 1
  }
}