Pith Number

pith:IYPEY3V4

pith:2018:IYPEY3V4SXKXSL4BO4JCGGCDBN

not attested not anchored not stored refs pending

Impact of predictor measurement heterogeneity across settings on performance of prediction models: a measurement error perspective

Ben Van Calster, Ewout W. Steyerberg, Kim Luijken, Maarten van Smeden, Rolf H.H. Groenwold

arxiv:1806.10495 v3 · 2018-06-27 · 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{IYPEY3V4SXKXSL4BO4JCGGCDBN}

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	2026-05-17T23:54:48.339481Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

461e4c6ebc95d5792f8177122318430b6bb0da60ba2bb07846afee9a0e598c9f

Aliases

arxiv: 1806.10495 · arxiv_version: 1806.10495v3 · doi: 10.48550/arxiv.1806.10495 · pith_short_12: IYPEY3V4SXKX · pith_short_16: IYPEY3V4SXKXSL4B · pith_short_8: IYPEY3V4

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/IYPEY3V4SXKXSL4BO4JCGGCDBN \
  | 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: 461e4c6ebc95d5792f8177122318430b6bb0da60ba2bb07846afee9a0e598c9f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2e7f4441395c46f086b42f7d7645bd731b47e6de9d58d98f909371ddf7df4b5f",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-nc-sa/4.0/",
    "primary_cat": "stat.ME",
    "submitted_at": "2018-06-27T14:18:00Z",
    "title_canon_sha256": "4d17a3033d8bd96f96b09826aed6af0392cc07a290c26463a5b6ca281be6d453"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1806.10495",
    "kind": "arxiv",
    "version": 3
  }
}