Pith Number

pith:AYK47DB7

pith:2009:AYK47DB7HMZJ46IEYNDQ6VJ3EJ

not attested not anchored not stored refs pending

Scaling in the global spreading patterns of pandemic Influenza A (H1N1) and the role of control: empirical statistics and modeling

Bing-Hong Wang, Chang-Song Zhou, Jun-Fang Zhu, Tao Zhou, Xiao-Pu Han

arxiv:0912.1390 v2 · 2009-12-08 · physics.soc-ph · physics.data-an · 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{AYK47DB7HMZJ46IEYNDQ6VJ3EJ}

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	2026-05-18T02:24:45.860173Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0615cf8c3f3b329e7904c3470f553b2240a84e34e1a4e8aa8f4e2e720fe42a59

Aliases

arxiv: 0912.1390 · arxiv_version: 0912.1390v2 · doi: 10.48550/arxiv.0912.1390 · pith_short_12: AYK47DB7HMZJ · pith_short_16: AYK47DB7HMZJ46IE · pith_short_8: AYK47DB7

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/AYK47DB7HMZJ46IEYNDQ6VJ3EJ \
  | 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: 0615cf8c3f3b329e7904c3470f553b2240a84e34e1a4e8aa8f4e2e720fe42a59

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "dd383e8213b6d5b51c304026e168098744797af3aaf0f4da60a36456acccb5d8",
    "cross_cats_sorted": [
      "physics.data-an",
      "q-bio.PE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.soc-ph",
    "submitted_at": "2009-12-08T02:37:12Z",
    "title_canon_sha256": "279cbec57326dc72e9a02a3981d7d775b9437e231177699aa7f33710063f8103"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0912.1390",
    "kind": "arxiv",
    "version": 2
  }
}