Pith Number

pith:VJC4AR2C

pith:2019:VJC4AR2CWSCYZG7X34VHCPJPAT

not attested not anchored not stored refs pending

Nowcasting Influenza Incidence with CDC Web Traffic Data: A Demonstration Using a Novel Data Set

Geoffrey Fairchild, Sara Y. Del Valle, Wendy K. Caldwell

arxiv:1904.04931 v1 · 2019-04-09 · q-bio.PE · cs.SI

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{VJC4AR2CWSCYZG7X34VHCPJPAT}

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	2026-05-17T23:48:57.648766Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

aa45c04742b4858c9bf7df2a713d2f04df0eef76509da7877c78f9afc316be57

Aliases

arxiv: 1904.04931 · arxiv_version: 1904.04931v1 · doi: 10.48550/arxiv.1904.04931 · pith_short_12: VJC4AR2CWSCY · pith_short_16: VJC4AR2CWSCYZG7X · pith_short_8: VJC4AR2C

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/VJC4AR2CWSCYZG7X34VHCPJPAT \
  | 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: aa45c04742b4858c9bf7df2a713d2f04df0eef76509da7877c78f9afc316be57

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "267e8921c1bda52740eba336b9477ecdc68b54584c8e453c4a9484173b07091e",
    "cross_cats_sorted": [
      "cs.SI"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "q-bio.PE",
    "submitted_at": "2019-04-09T22:01:37Z",
    "title_canon_sha256": "60730d5b4caded5213202548979dfaa6c4a05f984344bcd2d74c28b2142f4472"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1904.04931",
    "kind": "arxiv",
    "version": 1
  }
}