Pith Number

pith:A4PWJIFU

pith:2014:A4PWJIFUUPZ5XJUG574TZ2IWPH

not attested not anchored not stored refs pending

Indifference prices and implied volatilities

Matthew Lorig

arxiv:1412.5520 v2 · 2014-12-17 · 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{A4PWJIFUUPZ5XJUG574TZ2IWPH}

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	2026-05-18T01:34:05.449710Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

071f64a0b4a3f3dba686eff93ce91679f163ec48d7ae5d4aff31fb06cbe6e509

Aliases

arxiv: 1412.5520 · arxiv_version: 1412.5520v2 · doi: 10.48550/arxiv.1412.5520 · pith_short_12: A4PWJIFUUPZ5 · pith_short_16: A4PWJIFUUPZ5XJUG · pith_short_8: A4PWJIFU

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/A4PWJIFUUPZ5XJUG574TZ2IWPH \
  | 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: 071f64a0b4a3f3dba686eff93ce91679f163ec48d7ae5d4aff31fb06cbe6e509

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6ff9b802b5c8b343f06e0af65d505d3ad0b52001a656196c0c228f58e5b437f3",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "q-fin.MF",
    "submitted_at": "2014-12-17T19:00:47Z",
    "title_canon_sha256": "93d38971a408b44346046045b984e50539378b561fc6e87e1625e1c1b0e10771"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1412.5520",
    "kind": "arxiv",
    "version": 2
  }
}