pith. sign in
Pith Number

pith:PHDMXZ26

pith:2010:PHDMXZ26NDNY6SDM67VJ6BRNJ6
not attested not anchored not stored refs pending

f(R,L_m) gravity

Francisco S. N. Lobo, Tiberiu Harko

arxiv:1008.4193 v2 · 2010-08-25 · gr-qc · astro-ph.CO · hep-th

Add to your LaTeX paper
\usepackage{pith}
\pithnumber{PHDMXZ26NDNY6SDM67VJ6BRNJ6}

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

5 papers in Pith

Receipt and verification
First computed 2026-05-18T04:29:53.541036Z
Builder pith-number-builder-2026-05-17-v1
Signature Pith Ed25519 (pith-v1-2026-05) · public key
Schema pith-number/v1.0

Canonical hash

79c6cbe75e68db8f486cf7ea9f062d4f91425408a30680684d409a5322dbaf97

Aliases

arxiv: 1008.4193 · arxiv_version: 1008.4193v2 · doi: 10.48550/arxiv.1008.4193 · pith_short_12: PHDMXZ26NDNY · pith_short_16: PHDMXZ26NDNY6SDM · pith_short_8: PHDMXZ26
Agent API
Verify this Pith Number yourself
curl -sH 'Accept: application/ld+json' https://pith.science/pith/PHDMXZ26NDNY6SDM67VJ6BRNJ6 \
  | 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: 79c6cbe75e68db8f486cf7ea9f062d4f91425408a30680684d409a5322dbaf97
Canonical record JSON
{
  "metadata": {
    "abstract_canon_sha256": "20ce9272a1cc5a4bc942b743cab7de3ea529ff7629694c79eb18544a2b595c82",
    "cross_cats_sorted": [
      "astro-ph.CO",
      "hep-th"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2010-08-25T02:59:52Z",
    "title_canon_sha256": "9189d8916b99d8bf948021c1882923525b5674aa6843f0703b2670e9b60f547e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1008.4193",
    "kind": "arxiv",
    "version": 2
  }
}