Pith Number

pith:O2XMXH5I

pith:2012:O2XMXH5IYNVMS66PKZOZRHNON2

not attested not anchored not stored refs pending

Punctuated evolution of influenza virus hemagglutinin (A/H1N1) under opposing migration and vaccination pressures

J. C. Phillips

arxiv:1209.4306 v1 · 2012-09-19 · q-bio.BM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{O2XMXH5IYNVMS66PKZOZRHNON2}

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	2026-05-18T03:45:12.934008Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

76aecb9fa8c36ac97bcf565d989dae6eb97d60b6d2e2386cc225a6282b9a9a0a

Aliases

arxiv: 1209.4306 · arxiv_version: 1209.4306v1 · doi: 10.48550/arxiv.1209.4306 · pith_short_12: O2XMXH5IYNVM · pith_short_16: O2XMXH5IYNVMS66P · pith_short_8: O2XMXH5I

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/O2XMXH5IYNVMS66PKZOZRHNON2 \
  | 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: 76aecb9fa8c36ac97bcf565d989dae6eb97d60b6d2e2386cc225a6282b9a9a0a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3f808177c36520a39f958607035191ccc4647d5ceb31c468a7ae17bb2e87e57b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "q-bio.BM",
    "submitted_at": "2012-09-19T16:52:17Z",
    "title_canon_sha256": "82e3fa5ba894f3d00a1811008ab66d5766f9fded4e3ad08fde56fbe40df00958"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1209.4306",
    "kind": "arxiv",
    "version": 1
  }
}