Pith Number

pith:4SMWUYSK

pith:2004:4SMWUYSKPV4MJ26NQRI443IV7D

not attested not anchored not stored refs pending

The spread of disease with birth and death on networks

et al, Jingzhou Liu

arxiv:q-bio/0402042 v3 · 2004-02-25 · 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{4SMWUYSKPV4MJ26NQRI443IV7D}

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	2026-05-18T03:33:48.316377Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e4996a624a7d78c4ebcd8451ce6d15f8f5aed9b9714eee654b1644d4aa7af755

Aliases

arxiv: q-bio/0402042 · arxiv_version: q-bio/0402042v3 · doi: 10.48550/arxiv.q-bio/0402042 · pith_short_12: 4SMWUYSKPV4M · pith_short_16: 4SMWUYSKPV4MJ26N · pith_short_8: 4SMWUYSK

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/4SMWUYSKPV4MJ26NQRI443IV7D \
  | 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: e4996a624a7d78c4ebcd8451ce6d15f8f5aed9b9714eee654b1644d4aa7af755

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5110aafb79f8c4ec48c7f42be9fc1d234e8ad9be6e4277dfba976ddd59fe8521",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "q-bio.PE",
    "submitted_at": "2004-02-25T19:55:24Z",
    "title_canon_sha256": "7a24541bf6e3201930f9c8705b587a1592078e31d5aab0cf5c144f8bd144b0c9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "q-bio/0402042",
    "kind": "arxiv",
    "version": 3
  }
}