Pith Number

pith:34SBX2TY

pith:2012:34SBX2TYI2CEXP2UL4SNLGXQV5

not attested not anchored not stored refs pending

Analysis of 1:1 Matched Cohort Studies and Twin Studies, with Binary Exposures and Binary Outcomes

Anna L. V. Johansson, Arvid Sj\"olander, Catarina Almqvist, Cecilia Lundholm, Daniel Altman, Yudi Pawitan

arxiv:1210.0767 v1 · 2012-10-02 · stat.ME

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{34SBX2TYI2CEXP2UL4SNLGXQV5}

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	2026-05-18T03:44:14.293390Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

df241bea7846844bbf545f24d59af0af5e8ce90d382110b6c5dfc5dbeb7bc95f

Aliases

arxiv: 1210.0767 · arxiv_version: 1210.0767v1 · doi: 10.48550/arxiv.1210.0767 · pith_short_12: 34SBX2TYI2CE · pith_short_16: 34SBX2TYI2CEXP2U · pith_short_8: 34SBX2TY

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/34SBX2TYI2CEXP2UL4SNLGXQV5 \
  | 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: df241bea7846844bbf545f24d59af0af5e8ce90d382110b6c5dfc5dbeb7bc95f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b462e72bed8bddbf450a224dc4a53b7072961733f24c5c6f96345ffbb85f48e6",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "stat.ME",
    "submitted_at": "2012-10-02T13:28:06Z",
    "title_canon_sha256": "540e07257a17f1abf8c8e7bc87e0d0bb4a59582107b737b797e54c6243fb4868"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1210.0767",
    "kind": "arxiv",
    "version": 1
  }
}