Pith Number

pith:4W5YBPLZ

pith:2014:4W5YBPLZXYZNY6K3XY4ZPTOREG

not attested not anchored not stored refs pending

On volatility smile and an investment strategy with out-of-the-money calls

Jarno Talponen

arxiv:1410.1426 v1 · 2014-10-06 · q-fin.MF · math.PR · q-fin.GN · q-fin.PR · q-fin.TR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{4W5YBPLZXYZNY6K3XY4ZPTOREG}

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	2026-05-18T02:41:02.122524Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e5bb80bd79be32dc795bbe3997cdd1219593fef552af60ef26437bda52d3e05f

Aliases

arxiv: 1410.1426 · arxiv_version: 1410.1426v1 · doi: 10.48550/arxiv.1410.1426 · pith_short_12: 4W5YBPLZXYZN · pith_short_16: 4W5YBPLZXYZNY6K3 · pith_short_8: 4W5YBPLZ

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/4W5YBPLZXYZNY6K3XY4ZPTOREG \
  | 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: e5bb80bd79be32dc795bbe3997cdd1219593fef552af60ef26437bda52d3e05f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "da168aabf7e6b15b07b65c354ee41026252172c0183ac95077fe5f6bcf6dcf89",
    "cross_cats_sorted": [
      "math.PR",
      "q-fin.GN",
      "q-fin.PR",
      "q-fin.TR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "q-fin.MF",
    "submitted_at": "2014-10-06T16:04:22Z",
    "title_canon_sha256": "6855ab22acbd804ec8737d51ae8a21e1b3c5c38bd4c406a91f8a2e80aa9caed2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1410.1426",
    "kind": "arxiv",
    "version": 1
  }
}