Pith Number

pith:2CPG3DYX

pith:2025:2CPG3DYX2LIRE2ZPSLLKXURCEJ

not attested not anchored not stored refs pending

The Relative Instability of Model Comparison with Cross-validation

Alexandre Bayle, Lester Mackey, Lucas Janson

arxiv:2508.04409 v3 · 2025-08-06 · stat.ML · cs.LG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{2CPG3DYX2LIRE2ZPSLLKXURCEJ}

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	2026-06-05T01:15:15.166178Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d09e6d8f17d2d1126b2f92d6abd22222507128976fcb9de472936e56ced16536

Aliases

arxiv: 2508.04409 · arxiv_version: 2508.04409v3 · doi: 10.48550/arxiv.2508.04409 · pith_short_12: 2CPG3DYX2LIR · pith_short_16: 2CPG3DYX2LIRE2ZP · pith_short_8: 2CPG3DYX

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/2CPG3DYX2LIRE2ZPSLLKXURCEJ \
  | 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: d09e6d8f17d2d1126b2f92d6abd22222507128976fcb9de472936e56ced16536

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bb8bec7da0eebc1bde65458a24b41a38b9b41392b311f869c84b8c06c1ff8b63",
    "cross_cats_sorted": [
      "cs.LG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "stat.ML",
    "submitted_at": "2025-08-06T12:54:56Z",
    "title_canon_sha256": "1180bc8a88e9f36ca6d19b8828ca800a6dccf3fa258d813b06225fbf2bf330f2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2508.04409",
    "kind": "arxiv",
    "version": 3
  }
}