Pith Number

pith:Q2QG3RXP

pith:2026:Q2QG3RXPIYMOVVMU3YNLZSHGDB

not attested not anchored not stored refs pending

SGD Provably Prioritizes a Shortcut Spurious Feature in the XOR Model

Tyler LaBonte, Vidya Muthukumar

arxiv:2606.30444 v1 · 2026-06-29 · 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{Q2QG3RXPIYMOVVMU3YNLZSHGDB}

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	2026-06-30T02:18:15.389641Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

86a06dc6ef4618ead594de1abcc8e6186cecb17c3b631d8ed81fe2b1adb2b3f7

Aliases

arxiv: 2606.30444 · arxiv_version: 2606.30444v1 · doi: 10.48550/arxiv.2606.30444 · pith_short_12: Q2QG3RXPIYMO · pith_short_16: Q2QG3RXPIYMOVVMU · pith_short_8: Q2QG3RXP

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/Q2QG3RXPIYMOVVMU3YNLZSHGDB \
  | 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: 86a06dc6ef4618ead594de1abcc8e6186cecb17c3b631d8ed81fe2b1adb2b3f7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a4d068f32a7d0038a3db5254aa45d9f107fee39069dcdfe85b39b582529fb313",
    "cross_cats_sorted": [
      "cs.LG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "stat.ML",
    "submitted_at": "2026-06-29T15:17:16Z",
    "title_canon_sha256": "c27f27a8a49cbc0bf8bd56fbe051fde1b04f7ef972f2270143a159d624cbfd65"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2606.30444",
    "kind": "arxiv",
    "version": 1
  }
}