Pith Number

pith:ZNSOMVIO

pith:2011:ZNSOMVIOH3SCSXMX65YVCFB2WP

not attested not anchored not stored refs pending

Existence, uniqueness, and global regularity for degenerate elliptic obstacle problems in mathematical finance

Panagiota Daskalopoulos, Paul M. N. Feehan

arxiv:1109.1075 v1 · 2011-09-06 · math.AP · math.PR · q-fin.PR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ZNSOMVIOH3SCSXMX65YVCFB2WP}

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	2026-05-18T04:14:05.436507Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cb64e6550e3ee4295d97f77151143ab3e4d4c71b61bbc1d93f09a89fa092c248

Aliases

arxiv: 1109.1075 · arxiv_version: 1109.1075v1 · doi: 10.48550/arxiv.1109.1075 · pith_short_12: ZNSOMVIOH3SC · pith_short_16: ZNSOMVIOH3SCSXMX · pith_short_8: ZNSOMVIO

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/ZNSOMVIOH3SCSXMX65YVCFB2WP \
  | 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: cb64e6550e3ee4295d97f77151143ab3e4d4c71b61bbc1d93f09a89fa092c248

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "484b63224a725fd95eab30900c16e69a63aab8ace4c048d98f5473b35f40f4bd",
    "cross_cats_sorted": [
      "math.PR",
      "q-fin.PR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2011-09-06T06:09:45Z",
    "title_canon_sha256": "18986535e2f3fe526ba4db19742061b1fdc5f64ab7d78037bba5af8bb8a36966"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1109.1075",
    "kind": "arxiv",
    "version": 1
  }
}