Pith Number

pith:CWQ73FVC

pith:2020:CWQ73FVCAN3KADBBS2ZPT5DEHT

not attested not anchored not stored refs pending

Global Trends and Predictors of Face Mask Usage During the COVID-19 Pandemic

Adrianne Bradford, Andres Garcia, Christoph Kern, Curtiss Cobb, Elena Badillo-Goicoechea, Elizabeth A. Stuart, Esther Kim, Frauke Kreuter, Katherine Morris, Samantha Chiu, Sarah LaRocca, Ting-Hsuan Chang, Xiaoyi Deng

arxiv:2012.11678 v2 · 2020-12-21 · stat.AP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{CWQ73FVCAN3KADBBS2ZPT5DEHT}

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	2026-07-05T02:05:46.261813Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

15a1fd96a20376a00c2196b2f9f4643cfc18a804322584a4c7143a61ec68b302

Aliases

arxiv: 2012.11678 · arxiv_version: 2012.11678v2 · doi: 10.48550/arxiv.2012.11678 · pith_short_12: CWQ73FVCAN3K · pith_short_16: CWQ73FVCAN3KADBB · pith_short_8: CWQ73FVC

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/CWQ73FVCAN3KADBBS2ZPT5DEHT \
  | 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: 15a1fd96a20376a00c2196b2f9f4643cfc18a804322584a4c7143a61ec68b302

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6ba3e9eba4a39403f50e72689e44130e3cccdefdfdc6fbb11e1f0857e0680d84",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "stat.AP",
    "submitted_at": "2020-12-21T20:52:30Z",
    "title_canon_sha256": "8702d9915e18f5296a499b155eddd4ae5b6fdc8f73fd19329559764a75aa7170"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2012.11678",
    "kind": "arxiv",
    "version": 2
  }
}