Pith Number

pith:27AVQ4WJ

pith:2014:27AVQ4WJ3Y7BW4IQ3Z7GK777GL

not attested not anchored not stored refs pending

Identifying the genetic basis of antigenic change in influenza A(H1N1)

Alan J. Hay, Daniel T. Haydon, Donald J. Benton, James P. J. Hall, John W. McCauley, Richard Reeve, Rodney S. Daniels, Trevor Bedford, Victoria Gregory, William T. Harvey

arxiv:1404.4197 v2 · 2014-04-16 · q-bio.PE · q-bio.QM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{27AVQ4WJ3Y7BW4IQ3Z7GK777GL}

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	2026-05-18T01:17:26.115925Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d7c15872c9de3e1b7110de7e657fff32db78bd3f2490d10efc7f060336be48a7

Aliases

arxiv: 1404.4197 · arxiv_version: 1404.4197v2 · doi: 10.48550/arxiv.1404.4197 · pith_short_12: 27AVQ4WJ3Y7B · pith_short_16: 27AVQ4WJ3Y7BW4IQ · pith_short_8: 27AVQ4WJ

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/27AVQ4WJ3Y7BW4IQ3Z7GK777GL \
  | 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: d7c15872c9de3e1b7110de7e657fff32db78bd3f2490d10efc7f060336be48a7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2ff7441f5a7cd026be7e7ba2061b840c462a0ef292a4b3ac86eebf5a354f1259",
    "cross_cats_sorted": [
      "q-bio.QM"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "q-bio.PE",
    "submitted_at": "2014-04-16T10:41:32Z",
    "title_canon_sha256": "feaf91d1fde873b635f5f0e5e58bb681ebb9fbd2bedb7fbe122023e612395658"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1404.4197",
    "kind": "arxiv",
    "version": 2
  }
}