Pith Number

pith:X76LCD2D

pith:2025:X76LCD2DWYAP5OJGXAVYAB46AO

not attested not anchored not stored refs pending

Understanding infection risks of COVID-19 in the city: an investigation of infected neighborhoods in Wuhan

Weipan Xu, Xun Li, Ying Li

arxiv:2502.14649 v1 · 2025-02-20 · physics.soc-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{X76LCD2DWYAP5OJGXAVYAB46AO}

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	2026-07-05T10:17:30.596431Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bffcb10f43b600feb926b82b80079e03963d472b0778d0d02c432e74ea72d107

Aliases

arxiv: 2502.14649 · arxiv_version: 2502.14649v1 · doi: 10.48550/arxiv.2502.14649 · pith_short_12: X76LCD2DWYAP · pith_short_16: X76LCD2DWYAP5OJG · pith_short_8: X76LCD2D

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/X76LCD2DWYAP5OJGXAVYAB46AO \
  | 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: bffcb10f43b600feb926b82b80079e03963d472b0778d0d02c432e74ea72d107

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6d6bdd0068398525d85fe1fbca753a352ef88b561d71ca26a9f2ba1c4f6f071e",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "physics.soc-ph",
    "submitted_at": "2025-02-20T15:38:59Z",
    "title_canon_sha256": "eb0f1f9b3e69fb9561bb2710f04ecba7efbc2d8f8a68810e3dff9f9a324dcba1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2502.14649",
    "kind": "arxiv",
    "version": 1
  }
}