Pith Number

pith:BYI6TWRO

pith:2020:BYI6TWRO6EB32CEFKBJVPL472N

not attested not anchored not stored refs pending

Regularized Bayesian calibration and scoring of the WD-FAB IRT model improves predictive performance over marginal maximum likelihood

Elizabeth K. Rasch, Joshua C. Chang, Julia Porcino, Larry Tang

arxiv:2010.01396 v2 · 2020-10-03 · stat.AP · 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{BYI6TWRO6EB32CEFKBJVPL472N}

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	2026-07-05T04:19:21.451295Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0e11e9da2ef103bd0885505357af9fd3799282dcd2314f8cb451ce02735f7c23

Aliases

arxiv: 2010.01396 · arxiv_version: 2010.01396v2 · doi: 10.48550/arxiv.2010.01396 · pith_short_12: BYI6TWRO6EB3 · pith_short_16: BYI6TWRO6EB32CEF · pith_short_8: BYI6TWRO

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/BYI6TWRO6EB32CEFKBJVPL472N \
  | 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: 0e11e9da2ef103bd0885505357af9fd3799282dcd2314f8cb451ce02735f7c23

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d30e6cc6574ea161f1a4c174dbaadf8e66aecfa61fc014da6b4efd340f27d775",
    "cross_cats_sorted": [
      "stat.ME"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "stat.AP",
    "submitted_at": "2020-10-03T17:25:12Z",
    "title_canon_sha256": "cb5b3d521054591615fedf49319e7899b6c3f604b92f5181f561c6f582bc3fd1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2010.01396",
    "kind": "arxiv",
    "version": 2
  }
}