Pith Number

pith:TAZAMWR4

pith:2006:TAZAMWR4ICMNIQQBYL7CXK35FF

not attested not anchored not stored refs pending

Geometric characterization of nodal domains: the area-to-perimeter ratio

Christian Joas, Sven Gnutzmann, Uzy Smilansky, Yehonatan Elon

arxiv:nlin/0612040 v2 · 2006-12-17 · nlin.CD

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{TAZAMWR4ICMNIQQBYL7CXK35FF}

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	2026-05-18T01:38:17.689390Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9832065a3c4098d44201c2fe2bab7d296472a5726bfb8ce9dcf34585d5de2dc4

Aliases

arxiv: nlin/0612040 · arxiv_version: nlin/0612040v2 · doi: 10.48550/arxiv.nlin/0612040 · pith_short_12: TAZAMWR4ICMN · pith_short_16: TAZAMWR4ICMNIQQB · pith_short_8: TAZAMWR4

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/TAZAMWR4ICMNIQQBYL7CXK35FF \
  | 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: 9832065a3c4098d44201c2fe2bab7d296472a5726bfb8ce9dcf34585d5de2dc4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "339b7b8a84059c3c26f0a84368a31a279b7c9e1ee417f23813d3659ea4cec3d7",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "nlin.CD",
    "submitted_at": "2006-12-17T13:16:10Z",
    "title_canon_sha256": "445ea108b3b85e8095f8bd9becb8409af8ed879a2d59f17228e3f0e2f8b1fb4c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "nlin/0612040",
    "kind": "arxiv",
    "version": 2
  }
}