Pith Number

pith:Y4YL2VL3

pith:2013:Y4YL2VL3H5KOVGFD6LEA3BB4DS

not attested not anchored not stored refs pending

Week 1 Influenza Forecast for the 2012-2013 U.S. Season

Alicia Karspeck, Jeffrey Shaman, Marc Lipsitch

arxiv:1301.3110 v2 · 2013-01-14 · q-bio.PE · stat.AP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{Y4YL2VL3H5KOVGFD6LEA3BB4DS}

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	2026-05-18T03:36:03.778363Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c730bd557b3f54ea98a3f2c80d843c1ca75a956fd697f59623ed80153ff83459

Aliases

arxiv: 1301.3110 · arxiv_version: 1301.3110v2 · doi: 10.48550/arxiv.1301.3110 · pith_short_12: Y4YL2VL3H5KO · pith_short_16: Y4YL2VL3H5KOVGFD · pith_short_8: Y4YL2VL3

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/Y4YL2VL3H5KOVGFD6LEA3BB4DS \
  | 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: c730bd557b3f54ea98a3f2c80d843c1ca75a956fd697f59623ed80153ff83459

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f89cfd0e558f3d310d3dacde39346c76ac0f750cde200d771e49419c3448bf45",
    "cross_cats_sorted": [
      "stat.AP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "q-bio.PE",
    "submitted_at": "2013-01-14T20:18:47Z",
    "title_canon_sha256": "763d057bdfe4843c4854b556d2c1d13d59427ae05788feafa233a3d8f64f86a3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1301.3110",
    "kind": "arxiv",
    "version": 2
  }
}