Pith Number

pith:WZMVYFS6

pith:2020:WZMVYFS6RTPPLUF35R2S554B2A

not attested not anchored not stored refs pending

Identifiability and estimation under the test-negative design with population controls with the goal of identifying risk and preventive factors for SARS-CoV-2 infection

Anita Koushik, Daphna Harel, Joanna Merckx, Mireille E. Schnitzer, Vikki Ho

arxiv:2006.03140 v3 · 2020-06-04 · stat.ME · 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{WZMVYFS6RTPPLUF35R2S554B2A}

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	2026-07-05T02:13:14.800488Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b6595c165e8cdef5d0bbec752ef781d002718a045c5a660fece3cbc3f48963e5

Aliases

arxiv: 2006.03140 · arxiv_version: 2006.03140v3 · doi: 10.48550/arxiv.2006.03140 · pith_short_12: WZMVYFS6RTPP · pith_short_16: WZMVYFS6RTPPLUF3 · pith_short_8: WZMVYFS6

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/WZMVYFS6RTPPLUF35R2S554B2A \
  | 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: b6595c165e8cdef5d0bbec752ef781d002718a045c5a660fece3cbc3f48963e5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e56012acdb602a81c3069f33d10f325518fd26ae52320232f7bbea1f1b2c9787",
    "cross_cats_sorted": [
      "stat.AP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "stat.ME",
    "submitted_at": "2020-06-04T21:41:51Z",
    "title_canon_sha256": "191fac75c30d4eb21ca9fc689c1dea6667ae261454154ccbe3c11cdd30f70f0e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2006.03140",
    "kind": "arxiv",
    "version": 3
  }
}