pith. sign in
Pith Number

pith:3MF7H5VE

pith:2016:3MF7H5VE5VXM5UVJZESS3TBDGO
not attested not anchored not stored refs pending

Exact solutions for scalar field cosmology in f(R) gravity

A. V. Nikolaev, R. Goswami, S. D. Maharaj, S. V. Chervon

arxiv:1611.00173 v2 · 2016-11-01 · gr-qc

Add to your LaTeX paper
\usepackage{pith}
\pithnumber{3MF7H5VE5VXM5UVJZESS3TBDGO}

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 2026-05-18T00:35:18.469940Z
Builder pith-number-builder-2026-05-17-v1
Signature Pith Ed25519 (pith-v1-2026-05) · public key
Schema pith-number/v1.0

Canonical hash

db0bf3f6a4ed6eced2a9c9252dcc2333ba2ff040a1842a11d8fa824e7822a241

Aliases

arxiv: 1611.00173 · arxiv_version: 1611.00173v2 · doi: 10.48550/arxiv.1611.00173 · pith_short_12: 3MF7H5VE5VXM · pith_short_16: 3MF7H5VE5VXM5UVJ · pith_short_8: 3MF7H5VE
Agent API
Verify this Pith Number yourself
curl -sH 'Accept: application/ld+json' https://pith.science/pith/3MF7H5VE5VXM5UVJZESS3TBDGO \
  | 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: db0bf3f6a4ed6eced2a9c9252dcc2333ba2ff040a1842a11d8fa824e7822a241
Canonical record JSON
{
  "metadata": {
    "abstract_canon_sha256": "f79b2d74feae162a706f0947f4d5716b1b14fa3251bcf2bf6fa39babf91821ab",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2016-11-01T09:59:49Z",
    "title_canon_sha256": "c6b8e39e2bf1d0b8152db57544c36c450c0e6ce30d46a62dcdbfab1eb7900b6c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1611.00173",
    "kind": "arxiv",
    "version": 2
  }
}