Pith. sign in
Pith Number

pith:AJZN7ZU5

pith:2019:AJZN7ZU52XI3KESD7A2WN3HDAQ
not attested not anchored not stored refs pending

Ghosts in metric-affine higher order curvature gravity

Adria Delhom, Jose Beltr\'an Jim\'enez

arxiv:1901.08988 v2 · 2019-01-25 · gr-qc · hep-th

Add to your LaTeX paper
\usepackage{pith}
\pithnumber{AJZN7ZU52XI3KESD7A2WN3HDAQ}

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

3 papers in Pith

Receipt and verification
First computed 2026-07-04T23:58:25.059132Z
Builder pith-number-builder-2026-05-17-v1
Signature Pith Ed25519 (pith-v1-2026-05) · public key
Schema pith-number/v1.0

Canonical hash

0272dfe69dd5d1b51243f83566ece3042b777076451f09f027d68eb625d9f150

Aliases

arxiv: 1901.08988 · arxiv_version: 1901.08988v2 · doi: 10.48550/arxiv.1901.08988 · pith_short_12: AJZN7ZU52XI3 · pith_short_16: AJZN7ZU52XI3KESD · pith_short_8: AJZN7ZU5
Agent API
Verify this Pith Number yourself
curl -sH 'Accept: application/ld+json' https://pith.science/pith/AJZN7ZU52XI3KESD7A2WN3HDAQ \
  | 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: 0272dfe69dd5d1b51243f83566ece3042b777076451f09f027d68eb625d9f150
Canonical record JSON
{
  "metadata": {
    "abstract_canon_sha256": "78149ef2133c14e37587fe0cef4ec161e25b4e4bcc28f9dc879f382791c2ff96",
    "cross_cats_sorted": [
      "hep-th"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2019-01-25T17:06:11Z",
    "title_canon_sha256": "1a1bc6b75b7fb5d857a7a5f8b854b6787d7893271f3020148b1124e931b509c7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1901.08988",
    "kind": "arxiv",
    "version": 2
  }
}