Pith Number

pith:VKINIORN

pith:2018:VKINIORNR65FZTSNUUTZ23B2IV

not attested not anchored not stored refs pending

A New Nonparametric Estimate of the Risk-Neutral Density with Applications to Variance Swaps

Fangfang Wang, Jie Yang, Keren Li, Liyuan Jiang, Shuang Zhou

arxiv:1808.05289 v2 · 2018-08-15 · q-fin.PR · stat.AP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{VKINIORNR65FZTSNUUTZ23B2IV}

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	2026-05-17T23:53:42.183120Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

aa90d43a2d8fba5cce4da5279d6c3a457e1fc23210156a5fe89fe1c04fe738f3

Aliases

arxiv: 1808.05289 · arxiv_version: 1808.05289v2 · doi: 10.48550/arxiv.1808.05289 · pith_short_12: VKINIORNR65F · pith_short_16: VKINIORNR65FZTSN · pith_short_8: VKINIORN

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/VKINIORNR65FZTSNUUTZ23B2IV \
  | 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: aa90d43a2d8fba5cce4da5279d6c3a457e1fc23210156a5fe89fe1c04fe738f3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "877a18eb014ea5c4601920bbe8e7dddf6a98e6f0b310ccb255184bcf1dddfd33",
    "cross_cats_sorted": [
      "stat.AP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "q-fin.PR",
    "submitted_at": "2018-08-15T21:32:25Z",
    "title_canon_sha256": "48ca1f4a3226fc4ac5a443e530e07c3cd26fd6f6fbb72fbc30e0f8e17ad1928a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1808.05289",
    "kind": "arxiv",
    "version": 2
  }
}