Pith Number

pith:KRBYM7IT

pith:2013:KRBYM7ITM7Z4OV4OWTB7M7HQAJ

not attested not anchored not stored refs pending

Age-specific contacts and travel patterns in the spatial spread of 2009 H1N1 influenza pandemic

Andrea Apolloni, Chiara Poletto, Vittoria Colizza

arxiv:1304.0632 v1 · 2013-04-02 · physics.soc-ph · 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{KRBYM7ITM7Z4OV4OWTB7M7HQAJ}

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	2026-05-18T03:27:44.376373Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5443867d1367f3c7578eb4c3f67cf00273d94893932674d4faadb2c16690915c

Aliases

arxiv: 1304.0632 · arxiv_version: 1304.0632v1 · doi: 10.48550/arxiv.1304.0632 · pith_short_12: KRBYM7ITM7Z4 · pith_short_16: KRBYM7ITM7Z4OV4O · pith_short_8: KRBYM7IT

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/KRBYM7ITM7Z4OV4OWTB7M7HQAJ \
  | 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: 5443867d1367f3c7578eb4c3f67cf00273d94893932674d4faadb2c16690915c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "99c0a692debc118203781b04c5ea296e60c6e76294712ee1455d723682cff2c2",
    "cross_cats_sorted": [
      "q-bio.PE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.soc-ph",
    "submitted_at": "2013-04-02T13:56:06Z",
    "title_canon_sha256": "8e5d086e332a38c2e084d2414d76857b23a5b2b47bac9cf28600e3f72aac8d76"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1304.0632",
    "kind": "arxiv",
    "version": 1
  }
}