Pith Number

pith:4FJ3VQHL

pith:2002:4FJ3VQHLVN6DSBVNWMHEZ6F4UW

not attested not anchored not stored refs pending

Aging and species abundance in the Tangled Nature model of biological evolution

Henrik Jeldtoft Jensen, Kim Christensen, Matt Hall, Simone A. di Collobiano

arxiv:cond-mat/0202047 v1 · 2002-02-04 · cond-mat.stat-mech · 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{4FJ3VQHLVN6DSBVNWMHEZ6F4UW}

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	2026-05-18T01:07:00.030356Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e153bac0ebab7c3906adb30e4cf8bca5a89a396a259986e0c46e2f9fac685ea8

Aliases

arxiv: cond-mat/0202047 · arxiv_version: cond-mat/0202047v1 · doi: 10.48550/arxiv.cond-mat/0202047 · pith_short_12: 4FJ3VQHLVN6D · pith_short_16: 4FJ3VQHLVN6DSBVN · pith_short_8: 4FJ3VQHL

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/4FJ3VQHLVN6DSBVNWMHEZ6F4UW \
  | 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: e153bac0ebab7c3906adb30e4cf8bca5a89a396a259986e0c46e2f9fac685ea8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "58be433c23694abfd94c88561c332146a6694a4a2781854ac51122c6c988022b",
    "cross_cats_sorted": [
      "q-bio.PE"
    ],
    "license": "",
    "primary_cat": "cond-mat.stat-mech",
    "submitted_at": "2002-02-04T12:01:36Z",
    "title_canon_sha256": "8521217a4060a419d37c09e35e6900955f94f0777729f34640072512c7a1b5fa"
  },
  "schema_version": "1.0",
  "source": {
    "id": "cond-mat/0202047",
    "kind": "arxiv",
    "version": 1
  }
}