Pith Number

pith:7QEWHFGC

pith:2009:7QEWHFGC6G4YYXOZ2SHJGDPWHW

not attested not anchored not stored refs pending

Regularity of Solutions of Linear Second Order Elliptic and Parabolic Boundary Value Problems on Lipschitz Domains

Robin Nittka

arxiv:0906.5285 v1 · 2009-06-29 · math.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{7QEWHFGC6G4YYXOZ2SHJGDPWHW}

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	2026-05-18T04:20:36.008139Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fc096394c2f1b98c5dd9d48e930df63d9fd6351685ce46ec7befe889591670c2

Aliases

arxiv: 0906.5285 · arxiv_version: 0906.5285v1 · doi: 10.48550/arxiv.0906.5285 · pith_short_12: 7QEWHFGC6G4Y · pith_short_16: 7QEWHFGC6G4YYXOZ · pith_short_8: 7QEWHFGC

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/7QEWHFGC6G4YYXOZ2SHJGDPWHW \
  | 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: fc096394c2f1b98c5dd9d48e930df63d9fd6351685ce46ec7befe889591670c2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1e5a5e002cca75dc735075fd43f1a33bf59382dfe47a7088bb6758cf7a378025",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2009-06-29T14:55:13Z",
    "title_canon_sha256": "c830133b7d816fa0de10c39ae2b9f75d1c861c3b09ccdd0cdf957d31cfca4ea7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0906.5285",
    "kind": "arxiv",
    "version": 1
  }
}