Pith Number

pith:QAXHQHFM

pith:2009:QAXHQHFMPMU4X6JPJYZZXRME3W

not attested not anchored not stored refs pending

A Bayesian framework for estimating vaccine efficacy per infectious contact

Ira M. Longini, Jr., M. Elizabeth Halloran, Peter Gilbert, Yang Yang

arxiv:0901.4025 v1 · 2009-01-26 · 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{QAXHQHFMPMU4X6JPJYZZXRME3W}

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	2026-05-18T03:48:02.936275Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

802e781cac7b29cbf92f4e339bc584dd8d700639877f30efa2244785bb994a39

Aliases

arxiv: 0901.4025 · arxiv_version: 0901.4025v1 · doi: 10.48550/arxiv.0901.4025 · pith_short_12: QAXHQHFMPMU4 · pith_short_16: QAXHQHFMPMU4X6JP · pith_short_8: QAXHQHFM

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/QAXHQHFMPMU4X6JPJYZZXRME3W \
  | 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: 802e781cac7b29cbf92f4e339bc584dd8d700639877f30efa2244785bb994a39

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bb18c1e5f05e3fc0ff498d0230ca66d2d7c3eed44cbe2d73e0456d408230becc",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "stat.AP",
    "submitted_at": "2009-01-26T15:36:14Z",
    "title_canon_sha256": "c3a80d778fff9ff5bc51495cb547c6458873930adaa995698510d01ff64c965d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0901.4025",
    "kind": "arxiv",
    "version": 1
  }
}