Pith Number

pith:6XM7JHVG

pith:2021:6XM7JHVGLYS5SDEUGLMNZAWEWU

not attested not anchored not stored refs pending

Assessing an Alternative for `Negative Variance Components': A Gentle Introduction to Bayesian Covariance Structure Modelling for Negative Associations Among Patients with Personalized Treatments

Jean-Paul Fox, Wouter Smink

arxiv:2106.10107 v1 · 2021-06-18 · stat.ME · stat.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{6XM7JHVGLYS5SDEUGLMNZAWEWU}

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	2026-07-05T02:50:33.552633Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f5d9f49ea65e25d90c9432d8dc82c4b527d2c917779ee7c5292321bad06266c0

Aliases

arxiv: 2106.10107 · arxiv_version: 2106.10107v1 · doi: 10.48550/arxiv.2106.10107 · pith_short_12: 6XM7JHVGLYS5 · pith_short_16: 6XM7JHVGLYS5SDEU · pith_short_8: 6XM7JHVG

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/6XM7JHVGLYS5SDEUGLMNZAWEWU \
  | 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: f5d9f49ea65e25d90c9432d8dc82c4b527d2c917779ee7c5292321bad06266c0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "432b9d141acaa073902a53a7bb0c336ed4e673c988ea28339ac64ca8e1a871fe",
    "cross_cats_sorted": [
      "stat.CO"
    ],
    "license": "http://creativecommons.org/licenses/by-nc-nd/4.0/",
    "primary_cat": "stat.ME",
    "submitted_at": "2021-06-18T12:59:04Z",
    "title_canon_sha256": "610d893900d93959dc58993ea9a3f9e7fd3ffcb772e96194c5f29efd934b2c53"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2106.10107",
    "kind": "arxiv",
    "version": 1
  }
}