pith. sign in
Pith Number

pith:XIB2GB26

pith:2011:XIB2GB26OUCRWIW3JSGQS6GLQL
not attested not anchored not stored refs pending

Cosmological dynamics of fourth order gravity: A compact view

Mohamed Abdelwahab, Peter K. S. Dunsby, Rituparno Goswami

arxiv:1111.0171 v3 · 2011-11-01 · gr-qc

Add to your LaTeX paper
\usepackage{pith}
\pithnumber{XIB2GB26OUCRWIW3JSGQS6GLQL}

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 2026-05-18T01:59:48.988167Z
Builder pith-number-builder-2026-05-17-v1
Signature Pith Ed25519 (pith-v1-2026-05) · public key
Schema pith-number/v1.0

Canonical hash

ba03a3075e75051b22db4c8d0978cb82ff31df0f7a3481b20d568b28bdbe6cf0

Aliases

arxiv: 1111.0171 · arxiv_version: 1111.0171v3 · doi: 10.48550/arxiv.1111.0171 · pith_short_12: XIB2GB26OUCR · pith_short_16: XIB2GB26OUCRWIW3 · pith_short_8: XIB2GB26
Agent API
Verify this Pith Number yourself
curl -sH 'Accept: application/ld+json' https://pith.science/pith/XIB2GB26OUCRWIW3JSGQS6GLQL \
  | 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: ba03a3075e75051b22db4c8d0978cb82ff31df0f7a3481b20d568b28bdbe6cf0
Canonical record JSON
{
  "metadata": {
    "abstract_canon_sha256": "7817dac4845f32e6c30ab6dd37b1d6f95385e2ad2d8611c45a984a25ae5c8b7f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2011-11-01T11:16:04Z",
    "title_canon_sha256": "cafa0200f2521ec341f875a0f1c91e3121ab4b07680774824f9b2930b7cbed59"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1111.0171",
    "kind": "arxiv",
    "version": 3
  }
}