Pith Number

pith:5SW6IXA5

pith:2026:5SW6IXA5N2D4GM3K4JOVBJMYXQ

not attested not anchored not stored refs pending

SANOS Smooth strictly Arbitrage-free Non-parametric Option Surfaces

Anastasis Kratsios, Blanka Horvath, Hans Buehler, Raeid Saqur, Yannick Limmer

arxiv:2601.11209 v4 · 2026-01-16 · q-fin.CP · 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{5SW6IXA5N2D4GM3K4JOVBJMYXQ}

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

2 papers in Pith

Robust Volatility Index Calculation with OTM Option-implied Probability

Structure-Preserving Reconstruction of Convex Lipschitz Functionals on Hilbert Spaces from Finite Samples

Receipt and verification

First computed	2026-05-25T02:02:12.322544Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ecade45c1d6e87c3336ae25d50a598bc272e8a780c0dbb15ab6a5dae27b9daf1

Aliases

arxiv: 2601.11209 · arxiv_version: 2601.11209v4 · doi: 10.48550/arxiv.2601.11209 · pith_short_12: 5SW6IXA5N2D4 · pith_short_16: 5SW6IXA5N2D4GM3K · pith_short_8: 5SW6IXA5

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/5SW6IXA5N2D4GM3K4JOVBJMYXQ \
  | 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: ecade45c1d6e87c3336ae25d50a598bc272e8a780c0dbb15ab6a5dae27b9daf1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4a4848483fea40c65eac9ea70853ab536631f808616e164574095599a3c1437d",
    "cross_cats_sorted": [
      "q-fin.MF"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "q-fin.CP",
    "submitted_at": "2026-01-16T11:33:39Z",
    "title_canon_sha256": "6f00c280e028808cff0169efdb789431e61547d01b7fefedc11c7b0e53815164"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2601.11209",
    "kind": "arxiv",
    "version": 4
  }
}