Pith Number

pith:JNCYNUFR

pith:1999:JNCYNUFRMEQUY45ZZCZHXLWIW5

not attested not anchored not stored refs pending

An evolutionary model for simple ecosystems

Franco Bagnoli, Michele Bezzi

arxiv:cond-mat/9906164 v1 · 1999-06-11 · cond-mat.stat-mech · q-bio

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{JNCYNUFRMEQUY45ZZCZHXLWIW5}

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	2026-05-18T00:57:19.711024Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4b4586d0b161214c73b9c8b27baec8b74b5a768a9416eba6042265e4d077bfd4

Aliases

arxiv: cond-mat/9906164 · arxiv_version: cond-mat/9906164v1 · doi: 10.48550/arxiv.cond-mat/9906164 · pith_short_12: JNCYNUFRMEQU · pith_short_16: JNCYNUFRMEQUY45Z · pith_short_8: JNCYNUFR

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/JNCYNUFRMEQUY45ZZCZHXLWIW5 \
  | 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: 4b4586d0b161214c73b9c8b27baec8b74b5a768a9416eba6042265e4d077bfd4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3912e55200f2b7ef83150150a7404aa76a38972bd471e9937f93b19ab463d5ee",
    "cross_cats_sorted": [
      "q-bio"
    ],
    "license": "",
    "primary_cat": "cond-mat.stat-mech",
    "submitted_at": "1999-06-11T09:06:38Z",
    "title_canon_sha256": "c63b7c2e3f647d0341c45b559b27a1a21de707e882e7211609da1cbd143d8424"
  },
  "schema_version": "1.0",
  "source": {
    "id": "cond-mat/9906164",
    "kind": "arxiv",
    "version": 1
  }
}