Pith Number

pith:UYZVAB6G

pith:2020:UYZVAB6G3IBN3M5F4FJ3Y5HDVK

not attested not anchored not stored refs pending

An Investigation of Containment Measures Against the COVID-19 Pandemic in Mainland China

Dejing Dou, HaiFeng Wang, Haoyi Xiong, Haozhe An, Ji Liu, Jizhou Huang, Siyu Huang, Xiakai Wang

arxiv:2007.08254 v2 · 2020-07-16 · physics.soc-ph · cs.SI

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{UYZVAB6G3IBN3M5F4FJ3Y5HDVK}

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	2026-07-05T01:19:53.849439Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a6335007c6da02ddb3a5e153bc74e3aab0318788dbdcf6400c2b8ae524d328ba

Aliases

arxiv: 2007.08254 · arxiv_version: 2007.08254v2 · doi: 10.48550/arxiv.2007.08254 · pith_short_12: UYZVAB6G3IBN · pith_short_16: UYZVAB6G3IBN3M5F · pith_short_8: UYZVAB6G

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/UYZVAB6G3IBN3M5F4FJ3Y5HDVK \
  | 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: a6335007c6da02ddb3a5e153bc74e3aab0318788dbdcf6400c2b8ae524d328ba

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "eab1be4554b3b147b5c5b55391749693f638889d89e0ea0f913c8d86578c4bdd",
    "cross_cats_sorted": [
      "cs.SI"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.soc-ph",
    "submitted_at": "2020-07-16T11:02:58Z",
    "title_canon_sha256": "061e53748017acec6d4664cba83e1d86f1b97d5b6f6ea17b7a7cb550fb8834f6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2007.08254",
    "kind": "arxiv",
    "version": 2
  }
}