Pith Number

pith:QRKUOLMS

pith:2025:QRKUOLMS2YLNWGUUTX7FU4PRPT

not attested not anchored not stored refs pending

Thumb on the Scale: Optimal Loss Weighting in Last Layer Retraining

Christos Thrampoulidis, Lalitha Sankar, Nathan Stromberg

arxiv:2506.20025 v1 · 2025-06-24 · cs.LG · stat.ML

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QRKUOLMS2YLNWGUUTX7FU4PRPT}

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	2026-07-05T11:26:59.054330Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8455472d92d616db1a949dfe5a71f17cea4c1ab6c335d227b336874c647019f5

Aliases

arxiv: 2506.20025 · arxiv_version: 2506.20025v1 · doi: 10.48550/arxiv.2506.20025 · pith_short_12: QRKUOLMS2YLN · pith_short_16: QRKUOLMS2YLNWGUU · pith_short_8: QRKUOLMS

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/QRKUOLMS2YLNWGUUTX7FU4PRPT \
  | 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: 8455472d92d616db1a949dfe5a71f17cea4c1ab6c335d227b336874c647019f5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7136bf106eb336c5b855bd484c38d16c84394f782df83c0e1c8bc06e7341f660",
    "cross_cats_sorted": [
      "stat.ML"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2025-06-24T21:48:58Z",
    "title_canon_sha256": "1fe6e6a1f495c7886136776f3efafb0db9e06e2b953975acebd7e48bd49f3196"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2506.20025",
    "kind": "arxiv",
    "version": 1
  }
}