Pith Number

pith:XH5DTC3I

pith:2009:XH5DTC3IQPQXQD3NC4W2UKNGSZ

not attested not anchored not stored refs pending

A Curious Equation Involving the Infinity-Laplacian

Peter Lindqvist, Teemu Lukkari

arxiv:0902.1771 v1 · 2009-02-11 · 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{XH5DTC3IQPQXQD3NC4W2UKNGSZ}

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	2026-05-18T04:30:37.077307Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b9fa398b6883e1780f6d172daa29a69665cfff18b48810aad67f0ecfd89eb1f9

Aliases

arxiv: 0902.1771 · arxiv_version: 0902.1771v1 · doi: 10.48550/arxiv.0902.1771 · pith_short_12: XH5DTC3IQPQX · pith_short_16: XH5DTC3IQPQXQD3N · pith_short_8: XH5DTC3I

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/XH5DTC3IQPQXQD3NC4W2UKNGSZ \
  | 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: b9fa398b6883e1780f6d172daa29a69665cfff18b48810aad67f0ecfd89eb1f9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d4de33427090028501cc1057db3774bf0d7c4e33d07a6bf72fbd791ecb4ff422",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2009-02-11T13:32:42Z",
    "title_canon_sha256": "4c58b3b380bd14d780f7741d576acdffd11c387c9ca8d40ec579901dfa45650f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0902.1771",
    "kind": "arxiv",
    "version": 1
  }
}