Pith Number

pith:IKKB2TVP

pith:2015:IKKB2TVPK75ERAEGUVCW3XIP4L

not attested not anchored not stored refs pending

Inferring Volatility in the Heston Model and its Relatives -- an Information Theoretical Approach

Nils Bertschinger, Oliver Pfante

arxiv:1512.08381 v1 · 2015-12-28 · q-fin.ST · 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{IKKB2TVPK75ERAEGUVCW3XIP4L}

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	2026-05-18T01:23:42.463072Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

42941d4eaf57fa488086a5456ddd0fe2c92d8e4d82ecefbf6356b0cd5f05fa17

Aliases

arxiv: 1512.08381 · arxiv_version: 1512.08381v1 · doi: 10.48550/arxiv.1512.08381 · pith_short_12: IKKB2TVPK75E · pith_short_16: IKKB2TVPK75ERAEG · pith_short_8: IKKB2TVP

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/IKKB2TVPK75ERAEGUVCW3XIP4L \
  | 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: 42941d4eaf57fa488086a5456ddd0fe2c92d8e4d82ecefbf6356b0cd5f05fa17

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "da73350acf1b2cd6db36228dc31e4ce9ddf85e51ff2acb9f30e99f42613b92d4",
    "cross_cats_sorted": [
      "q-fin.CP",
      "q-fin.MF"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "q-fin.ST",
    "submitted_at": "2015-12-28T11:55:42Z",
    "title_canon_sha256": "1b35b82163b024ff586ae392ed10d9808322cdaf0f7bb23368bad7c862de0338"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1512.08381",
    "kind": "arxiv",
    "version": 1
  }
}