Pith Number

pith:DK4WXCIX

pith:2012:DK4WXCIX2UV3HL6PMP5LPTX2M4

not attested not anchored not stored refs pending

Quantifying Selection and Diversity in Viruses by Entropy Methods, with Application to the Hemagglutinin of H3N2 Influenza

Keyao Pan, Michael W. Deem

arxiv:1204.6020 v1 · 2012-04-26 · 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{DK4WXCIX2UV3HL6PMP5LPTX2M4}

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	2026-05-18T03:56:58.693086Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1ab96b8917d52bb3afcf63fab7cefa6723f92f4b0774925db62d946aebc3c0db

Aliases

arxiv: 1204.6020 · arxiv_version: 1204.6020v1 · doi: 10.48550/arxiv.1204.6020 · pith_short_12: DK4WXCIX2UV3 · pith_short_16: DK4WXCIX2UV3HL6P · pith_short_8: DK4WXCIX

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/DK4WXCIX2UV3HL6PMP5LPTX2M4 \
  | 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: 1ab96b8917d52bb3afcf63fab7cefa6723f92f4b0774925db62d946aebc3c0db

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b5a65c9a217e36fc9383366a7f8724ee93a12bf37c8ed9407cc9ef9bbe282c94",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "q-bio.PE",
    "submitted_at": "2012-04-26T19:30:45Z",
    "title_canon_sha256": "81cffb04726faf2a1e890dbc00b839af78527889f1beb6df1913ec50277e6c16"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1204.6020",
    "kind": "arxiv",
    "version": 1
  }
}