Pith Number

pith:5HHA2LKW

pith:2022:5HHA2LKWIENED4XNKVCDFEZX72

not attested not anchored not stored refs pending

Generalizability of Machine Learning Models: Quantitative Evaluation of Three Methodological Pitfalls

Alan Spatz, Caroline Reinhold, Farhad Maleki, Katie Ovens, Rajiv Gupta, Reza Forghani

arxiv:2202.01337 v2 · 2022-02-01 · cs.LG · cs.CV · eess.IV

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{5HHA2LKWIENED4XNKVCDFEZX72}

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	2026-07-05T04:55:37.753070Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e9ce0d2d56411a41f2ed5544329337fe98a5bd4c2b7a0bb7b3b8cc9d60bcd11f

Aliases

arxiv: 2202.01337 · arxiv_version: 2202.01337v2 · doi: 10.48550/arxiv.2202.01337 · pith_short_12: 5HHA2LKWIENE · pith_short_16: 5HHA2LKWIENED4XN · pith_short_8: 5HHA2LKW

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/5HHA2LKWIENED4XNKVCDFEZX72 \
  | 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: e9ce0d2d56411a41f2ed5544329337fe98a5bd4c2b7a0bb7b3b8cc9d60bcd11f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "919660f33cfbfce16fae54a95a58782ca78abd7f6cbd33dc063b4b2fa1aff337",
    "cross_cats_sorted": [
      "cs.CV",
      "eess.IV"
    ],
    "license": "http://creativecommons.org/licenses/by-nc-nd/4.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2022-02-01T05:07:27Z",
    "title_canon_sha256": "cc1abdc0aa8aabb40114a2bc1d5e7539fb8c1c1ce90f92068768534e534b310e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2202.01337",
    "kind": "arxiv",
    "version": 2
  }
}