Pith Number

pith:P4PB3IDV

pith:2015:P4PB3IDVDCOPA2JYQW7GSBU5IW

not attested not anchored not stored refs pending

Short-time at-the-money skew and rough fractional volatility

Masaaki Fukasawa

arxiv:1501.06980 v1 · 2015-01-28 · 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{P4PB3IDVDCOPA2JYQW7GSBU5IW}

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	2026-05-18T02:28:30.657812Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7f1e1da075189cf0693885be69069d458488eb43253a2ae252667b781abca2d5

Aliases

arxiv: 1501.06980 · arxiv_version: 1501.06980v1 · doi: 10.48550/arxiv.1501.06980 · pith_short_12: P4PB3IDVDCOP · pith_short_16: P4PB3IDVDCOPA2JY · pith_short_8: P4PB3IDV

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/P4PB3IDVDCOPA2JYQW7GSBU5IW \
  | 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: 7f1e1da075189cf0693885be69069d458488eb43253a2ae252667b781abca2d5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9b363e7ef7cda1c11a70b9b5e7928cfb42f776bd9fcd8392bfb7222effe11de3",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "q-fin.MF",
    "submitted_at": "2015-01-28T03:11:10Z",
    "title_canon_sha256": "202e9d2adb09671f702796ecd6de189982c49c8b056f70b0e91752c84bd774c8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1501.06980",
    "kind": "arxiv",
    "version": 1
  }
}