Pith Number

pith:RJRIUU67

pith:2013:RJRIUU67STRUWHR5KNQNU2A5DH

not attested not anchored not stored refs pending

The hemagglutinin mutation E391K of pandemic 2009 influenza revisited

Jan P. Radomski, Piotr P{\l}o\'nski, W{\l}odzimierz Zag\'orski-Ostoja

arxiv:1311.1910 v1 · 2013-11-08 · q-bio.GN · 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{RJRIUU67STRUWHR5KNQNU2A5DH}

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	2026-05-18T03:07:42.669517Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8a628a53df94e34b1e3d5360da681d19e287ed733d16833553ebcb1295a3f6e8

Aliases

arxiv: 1311.1910 · arxiv_version: 1311.1910v1 · doi: 10.48550/arxiv.1311.1910 · pith_short_12: RJRIUU67STRU · pith_short_16: RJRIUU67STRUWHR5 · pith_short_8: RJRIUU67

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/RJRIUU67STRUWHR5KNQNU2A5DH \
  | 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: 8a628a53df94e34b1e3d5360da681d19e287ed733d16833553ebcb1295a3f6e8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "82a11d2487383c87ff207fc41296b87a1f1fc8fcd84b8ac48629b6d30144250c",
    "cross_cats_sorted": [
      "q-bio.PE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "q-bio.GN",
    "submitted_at": "2013-11-08T09:30:09Z",
    "title_canon_sha256": "185e00a3febb0c28c90edd5597d2ed0f01839185889062e0f0b5cbd8a98dce83"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1311.1910",
    "kind": "arxiv",
    "version": 1
  }
}