Pith Number

pith:XV534AGE

pith:2019:XV534AGEGSTL62KNNKUWPSFA4A

not attested not anchored not stored refs pending

Matter Power Spectra in Viable $f(R)$ Gravity Models with Dynamical Background

Chao-Qiang Geng, Chung-Chi Lee, Hongwei Yu, Yow-Chun Chen

arxiv:1901.06747 v1 · 2019-01-20 · gr-qc · astro-ph.CO

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\usepackage{pith}
\pithnumber{XV534AGEGSTL62KNNKUWPSFA4A}

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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

1 paper in Pith

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

Receipt and verification

First computed	2026-05-17T23:55:02.968262Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bd7bbe00c434a6bf694d6aa967c8a0e00dae892aab4f6d2f7ef827b0c47084b7

Aliases

arxiv: 1901.06747 · arxiv_version: 1901.06747v1 · doi: 10.48550/arxiv.1901.06747 · pith_short_12: XV534AGEGSTL · pith_short_16: XV534AGEGSTL62KN · pith_short_8: XV534AGE

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/XV534AGEGSTL62KNNKUWPSFA4A \
  | 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: bd7bbe00c434a6bf694d6aa967c8a0e00dae892aab4f6d2f7ef827b0c47084b7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7390cdb3e3b2f066d46076ae049de04434cf8e0f314a8d57a3be0bbf18b6aaec",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2019-01-20T23:20:45Z",
    "title_canon_sha256": "01a1e6c51f6fc7a39ea2bfb8809581bc548e6d17549b5cdc3f73f48669699161"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1901.06747",
    "kind": "arxiv",
    "version": 1
  }
}