Pith Number

pith:2H7JLOSC

pith:2025:2H7JLOSCY3MI4JP56ZXEKW7ZCG

not attested not anchored not stored refs pending

Data-Parallel Neural Network Training via Nonlinearly Preconditioned Trust-Region Method

Alena Kopani\v{c}\'akov\'a, Ken Trotti, Rolf Krause, Samuel A. Cruz Alegr\'ia

arxiv:2502.05133 v1 · 2025-02-07 · cs.LG · cs.NA · math.NA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{2H7JLOSCY3MI4JP56ZXEKW7ZCG}

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	2026-07-05T10:11:09.750497Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d1fe95ba42c6d88e25fdf66e455bf9119042929fb2462d1a9a2b240b17349637

Aliases

arxiv: 2502.05133 · arxiv_version: 2502.05133v1 · doi: 10.48550/arxiv.2502.05133 · pith_short_12: 2H7JLOSCY3MI · pith_short_16: 2H7JLOSCY3MI4JP5 · pith_short_8: 2H7JLOSC

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/2H7JLOSCY3MI4JP56ZXEKW7ZCG \
  | 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: d1fe95ba42c6d88e25fdf66e455bf9119042929fb2462d1a9a2b240b17349637

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "57dbfc7501f83d89e8305bc6a6291288affd4c688baf91802b5a036a1de68d3b",
    "cross_cats_sorted": [
      "cs.NA",
      "math.NA"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2025-02-07T18:11:33Z",
    "title_canon_sha256": "0ed3cb8d7808ed10934a1bd3ce2b78edb4f1793a159ebae431e2e04d0ecb762b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2502.05133",
    "kind": "arxiv",
    "version": 1
  }
}