Pith Number

pith:BQ4SYMVT

pith:2020:BQ4SYMVTYTTOIA2JMIQF7X4HOZ

not attested not anchored not stored refs pending

Sex Differences in Severity and Mortality Among Patients With COVID-19: Evidence from Pooled Literature Analysis and Insights from Integrated Bioinformatic Analysis

Bo Zhang, Chao Qin, Daojun Lv, Di Gu, Guohua Zeng, Jianquan Hou, Jian Wang, Ninghong Song, Rui Chen, Shancheng Ren, Weidong Chen, Wei Zhang, Xiyi Wei, Yue Yang, Yu-Tian Xiao

arxiv:2003.13547 v1 · 2020-03-30 · q-bio.PE · q-bio.GN

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{BQ4SYMVTYTTOIA2JMIQF7X4HOZ}

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	2026-07-05T00:51:24.103349Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0c392c32b3c4e6e4034962205fdf87764c1ce7b3322de1d04345b347e578c73a

Aliases

arxiv: 2003.13547 · arxiv_version: 2003.13547v1 · doi: 10.48550/arxiv.2003.13547 · pith_short_12: BQ4SYMVTYTTO · pith_short_16: BQ4SYMVTYTTOIA2J · pith_short_8: BQ4SYMVT

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/BQ4SYMVTYTTOIA2JMIQF7X4HOZ \
  | 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: 0c392c32b3c4e6e4034962205fdf87764c1ce7b3322de1d04345b347e578c73a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8ba3cc6b4131f754758e048ec1e2c9c308ebf139f292ebdef92e9cb8175c62db",
    "cross_cats_sorted": [
      "q-bio.GN"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "q-bio.PE",
    "submitted_at": "2020-03-30T15:15:01Z",
    "title_canon_sha256": "b7ec0352513c9e06475415d1c0e736f3c4fac7f75e3b36fac26fb394bc4a2935"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2003.13547",
    "kind": "arxiv",
    "version": 1
  }
}