Pith Number

pith:FHDFWNC7

pith:2008:FHDFWNC7YPGJBGRVBVVUNQAUM6

not attested not anchored not stored refs pending

Effects of stochastic population fluctuations in two models of biological macroevolution

Nobuyasu Ito, Per Arne Rikvold, Takashi Shimada, Yohsuke Murase

arxiv:0803.1372 v1 · 2008-03-10 · q-bio.PE

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{FHDFWNC7YPGJBGRVBVVUNQAUM6}

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	2026-05-18T02:54:14.619121Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

29c65b345fc3cc909a350d6b46c0146796e5e8e4eb08751179b946620950edfd

Aliases

arxiv: 0803.1372 · arxiv_version: 0803.1372v1 · doi: 10.48550/arxiv.0803.1372 · pith_short_12: FHDFWNC7YPGJ · pith_short_16: FHDFWNC7YPGJBGRV · pith_short_8: FHDFWNC7

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/FHDFWNC7YPGJBGRVBVVUNQAUM6 \
  | 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: 29c65b345fc3cc909a350d6b46c0146796e5e8e4eb08751179b946620950edfd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5319f49395f5d469361ac70b565b456bb78c4b1ab339dc6a62328271f299ad04",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "q-bio.PE",
    "submitted_at": "2008-03-10T09:35:22Z",
    "title_canon_sha256": "3a1a68f403238c9bde527072c92e9a6d0d963fdb43a5bbcb2c2dc1c4b3f18850"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0803.1372",
    "kind": "arxiv",
    "version": 1
  }
}