Pith Number

pith:LFIFQMNV

pith:2014:LFIFQMNVXFY33YOCAKAN5QIJT3

not attested not anchored not stored refs pending

Modelling the skew and smile of SPX and DAX index options using the Shifted Log-Normal and SABR stochastic models

Doinita Negru, Jan Kuklinski, Pawel Pliszka

arxiv:1404.4659 v1 · 2014-04-17 · q-fin.MF

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{LFIFQMNVXFY33YOCAKAN5QIJT3}

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	2026-05-18T02:53:55.526565Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

59505831b5b971bde1c20280dec1099ed31cfe6b83f2d08a7e2caf7afc663dcf

Aliases

arxiv: 1404.4659 · arxiv_version: 1404.4659v1 · doi: 10.48550/arxiv.1404.4659 · pith_short_12: LFIFQMNVXFY3 · pith_short_16: LFIFQMNVXFY33YOC · pith_short_8: LFIFQMNV

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/LFIFQMNVXFY33YOCAKAN5QIJT3 \
  | 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: 59505831b5b971bde1c20280dec1099ed31cfe6b83f2d08a7e2caf7afc663dcf

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e977109db8baabb95b84e58dc0e7289f25ff4156f58e5b526c128432e74f13ec",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/3.0/",
    "primary_cat": "q-fin.MF",
    "submitted_at": "2014-04-17T21:50:48Z",
    "title_canon_sha256": "becfddfed24979f15eb8c453c41e1aa03bb27e6ff9c9fb447561e5e2138e51cc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1404.4659",
    "kind": "arxiv",
    "version": 1
  }
}