Pith Number

pith:R6ZKCW4K

pith:2012:R6ZKCW4K5KEPYEXYCKNTE32XK7

not attested not anchored not stored refs pending

Extended $f(R,L_m)$ gravity with generalized scalar field and kinetic term dependences

Francisco S. N. Lobo, Olivier Minazzoli, Tiberiu Harko

arxiv:1210.4218 v3 · 2012-10-12 · gr-qc · astro-ph.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{R6ZKCW4K5KEPYEXYCKNTE32XK7}

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.

Receipt and verification

First computed	2026-05-18T03:34:35.239978Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8fb2a15b8aea88fc12f8129b326f5757cb32418d8f7c1c0dc56f7505e439ffa9

Aliases

arxiv: 1210.4218 · arxiv_version: 1210.4218v3 · doi: 10.48550/arxiv.1210.4218 · pith_short_12: R6ZKCW4K5KEP · pith_short_16: R6ZKCW4K5KEPYEXY · pith_short_8: R6ZKCW4K

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/R6ZKCW4K5KEPYEXYCKNTE32XK7 \
  | 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: 8fb2a15b8aea88fc12f8129b326f5757cb32418d8f7c1c0dc56f7505e439ffa9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ad78cda4c8d84abb39ff9c54ddd06c95c2c75bb71c0864490c99c5cc40c01e16",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2012-10-12T16:55:21Z",
    "title_canon_sha256": "9437007df9448bcb582e5347dd811aaa31215a60efa498a7385e592117286109"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1210.4218",
    "kind": "arxiv",
    "version": 3
  }
}