Pith Number

pith:5ZLX6V25

pith:2010:5ZLX6V25FABUARX3AY2LWP5J2T

not attested not anchored not stored refs pending

The filling law: a general framework for leaf shape diversity and its consequences on folded leaves

Etienne Couturier, St\'ephane Douady, Sylvain Courrech du Pont

arxiv:1003.4756 v2 · 2010-03-24 · q-bio.TO · nlin.AO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{5ZLX6V25FABUARX3AY2LWP5J2T}

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	2026-05-18T04:39:40.790258Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ee577f575d28034046fb0634bb3fa9d4ef3268bf0ac1192841b893cb3f88bc92

Aliases

arxiv: 1003.4756 · arxiv_version: 1003.4756v2 · doi: 10.48550/arxiv.1003.4756 · pith_short_12: 5ZLX6V25FABU · pith_short_16: 5ZLX6V25FABUARX3 · pith_short_8: 5ZLX6V25

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/5ZLX6V25FABUARX3AY2LWP5J2T \
  | 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: ee577f575d28034046fb0634bb3fa9d4ef3268bf0ac1192841b893cb3f88bc92

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "80d298ca08022b80bc1c8b6b0d5bfee20215f712e95608fb06d57a263192ee8a",
    "cross_cats_sorted": [
      "nlin.AO"
    ],
    "license": "http://creativecommons.org/licenses/by-nc-sa/3.0/",
    "primary_cat": "q-bio.TO",
    "submitted_at": "2010-03-24T21:26:25Z",
    "title_canon_sha256": "bad28bf2f4b394feceffb620df68edc4a8baaceea53e465a0d3c7690c3a9d140"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1003.4756",
    "kind": "arxiv",
    "version": 2
  }
}