Pith Number

pith:3HAYL4BF

pith:2016:3HAYL4BF5FAESDNR5C5DYP7OP3

not attested not anchored not stored refs pending

Explaining the geographic origins of seasonal influenza A (H3N2)

Frank Wen, Sarah Cobey, Trevor Bedford

arxiv:1603.09397 v2 · 2016-03-30 · q-bio.PE

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{3HAYL4BF5FAESDNR5C5DYP7OP3}

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	2026-05-18T01:07:20.724762Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d9c185f025e940490db1e8ba3c3fee7ec12d98e0a2594e8d5f22c8ec68f3eaf9

Aliases

arxiv: 1603.09397 · arxiv_version: 1603.09397v2 · doi: 10.48550/arxiv.1603.09397 · pith_short_12: 3HAYL4BF5FAE · pith_short_16: 3HAYL4BF5FAESDNR · pith_short_8: 3HAYL4BF

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/3HAYL4BF5FAESDNR5C5DYP7OP3 \
  | 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: d9c185f025e940490db1e8ba3c3fee7ec12d98e0a2594e8d5f22c8ec68f3eaf9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "67046123314bbf894d892ac2d61e30002f3a358fb19471f3f650a81bc568517f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "q-bio.PE",
    "submitted_at": "2016-03-30T22:05:39Z",
    "title_canon_sha256": "6d0bbbe3c8d2713db968ddee89726384bfe4cd03b07c4026f2d11f70959b4533"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1603.09397",
    "kind": "arxiv",
    "version": 2
  }
}