Pith Number

pith:Y5U4WH2Z

pith:2004:Y5U4WH2ZCROVDYV65HR4QOKRZS

not attested not anchored not stored refs pending

On the asymptotic free boundary for the American put option problem

H. Hedenmalm

arxiv:math/0412332 v1 · 2004-12-16 · math.OC · q-fin.CP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{Y5U4WH2ZCROVDYV65HR4QOKRZS}

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	2026-05-18T03:58:14.489636Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c769cb1f59145d51e2bee9e3c83951ccbf1555806aa86dc6f3f0f5544d384dc6

Aliases

arxiv: math/0412332 · arxiv_version: math/0412332v1 · doi: 10.48550/arxiv.math/0412332 · pith_short_12: Y5U4WH2ZCROV · pith_short_16: Y5U4WH2ZCROVDYV6 · pith_short_8: Y5U4WH2Z

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/Y5U4WH2ZCROVDYV65HR4QOKRZS \
  | 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: c769cb1f59145d51e2bee9e3c83951ccbf1555806aa86dc6f3f0f5544d384dc6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3d1069b3520737a5b214a3206dae796970407f90d61ffee0dc527426ffc491a6",
    "cross_cats_sorted": [
      "q-fin.CP"
    ],
    "license": "",
    "primary_cat": "math.OC",
    "submitted_at": "2004-12-16T19:44:12Z",
    "title_canon_sha256": "69960f7bd5deba42217a7bccb609464eecb16c343041061b22c52cfbc7198b72"
  },
  "schema_version": "1.0",
  "source": {
    "id": "math/0412332",
    "kind": "arxiv",
    "version": 1
  }
}