Pith Number

pith:VVZDF2AF

pith:2026:VVZDF2AF7KSY4YRHWZZ4BGCJVG

not attested not anchored not stored refs pending

Efficient and Noise-Tolerant PAC Learning of Multiclass Linear Classifiers

Rita Adhikari, Shiwei Zeng

arxiv:2605.18662 v1 · 2026-05-18 · 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{VVZDF2AF7KSY4YRHWZZ4BGCJVG}

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	2026-05-20T00:06:13.465996Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ad7232e805faa58e6227b673c09849a9af1823a79d0ba151817003eeedaaa38d

Aliases

arxiv: 2605.18662 · arxiv_version: 2605.18662v1 · doi: 10.48550/arxiv.2605.18662 · pith_short_12: VVZDF2AF7KSY · pith_short_16: VVZDF2AF7KSY4YRH · pith_short_8: VVZDF2AF

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/VVZDF2AF7KSY4YRHWZZ4BGCJVG \
  | 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: ad7232e805faa58e6227b673c09849a9af1823a79d0ba151817003eeedaaa38d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4f3dafcb7aa109aac2b4c22ae89f68e243eb10151fb2ea041c5c86c7802cf6aa",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2026-05-18T17:09:26Z",
    "title_canon_sha256": "ab9ab149abe60ff63eb9f89a67a1f253bf51fe11d30ab3c80024bb7e395076a8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2605.18662",
    "kind": "arxiv",
    "version": 1
  }
}