Pith Number

pith:3LKZJOPF

pith:2012:3LKZJOPF2OH4M65ID2PVCBKPQV

not attested not anchored not stored refs pending

Generalised arbitrage-free SVI volatility surfaces

Antoine Jacquier, Claude Martini, Gaoyue Guo, Leo Neufcourt

arxiv:1210.7111 v4 · 2012-10-26 · q-fin.PR · q-fin.CP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{3LKZJOPF2OH4M65ID2PVCBKPQV}

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	2026-05-18T00:14:23.429444Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

dad594b9e5d38fc67ba81e9f51054f8542fd071576c40523b52e6c8723837e9b

Aliases

arxiv: 1210.7111 · arxiv_version: 1210.7111v4 · doi: 10.48550/arxiv.1210.7111 · pith_short_12: 3LKZJOPF2OH4 · pith_short_16: 3LKZJOPF2OH4M65I · pith_short_8: 3LKZJOPF

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/3LKZJOPF2OH4M65ID2PVCBKPQV \
  | 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: dad594b9e5d38fc67ba81e9f51054f8542fd071576c40523b52e6c8723837e9b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "49aa9c25c93319bcdc940b28be62f7fa1bf94a8a26edebb50198fb16496a7eae",
    "cross_cats_sorted": [
      "q-fin.CP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "q-fin.PR",
    "submitted_at": "2012-10-26T12:17:52Z",
    "title_canon_sha256": "ec6934d81b8385e35df429ff7dbc2868cc7facf425ee6c5d9421ee215658a21f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1210.7111",
    "kind": "arxiv",
    "version": 4
  }
}