pith. sign in
Pith Number

pith:DPIR45OL

pith:2015:DPIR45OLPRSAEWHDQC7NCGE3NK
not attested not anchored not stored refs pending

Quartic Quasi-Topological-Born-Infeld Gravity

Mohammad Ghanaatian

arxiv:1503.09053 v2 · 2015-03-30 · gr-qc

Add to your LaTeX paper
\usepackage{pith}
\pithnumber{DPIR45OLPRSAEWHDQC7NCGE3NK}

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 2026-05-18T01:33:43.660754Z
Builder pith-number-builder-2026-05-17-v1
Signature Pith Ed25519 (pith-v1-2026-05) · public key
Schema pith-number/v1.0

Canonical hash

1bd11e75cb7c640258e380bed1189b6a96eab154f751451a4757c6a981a3d8de

Aliases

arxiv: 1503.09053 · arxiv_version: 1503.09053v2 · doi: 10.48550/arxiv.1503.09053 · pith_short_12: DPIR45OLPRSA · pith_short_16: DPIR45OLPRSAEWHD · pith_short_8: DPIR45OL
Agent API
Verify this Pith Number yourself
curl -sH 'Accept: application/ld+json' https://pith.science/pith/DPIR45OLPRSAEWHDQC7NCGE3NK \
  | 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: 1bd11e75cb7c640258e380bed1189b6a96eab154f751451a4757c6a981a3d8de
Canonical record JSON
{
  "metadata": {
    "abstract_canon_sha256": "13190449a5059e29cab0aeea12002dd84d92aca7c014bcf1c60bbfa583ca3ded",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2015-03-30T15:54:14Z",
    "title_canon_sha256": "558d2d334367fa8a3c31895a5297784dc450875350c8eb2df4a452399bad8deb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1503.09053",
    "kind": "arxiv",
    "version": 2
  }
}