Pith Number

pith:QM3XCFOS

pith:2025:QM3XCFOSCPCUFWE66RHNVZGJDS

not attested not anchored not stored refs pending

HardML: A Benchmark For Evaluating Data Science And Machine Learning knowledge and reasoning in AI

Tidor-Vlad Pricope

arxiv:2501.15627 v2 · 2025-01-26 · cs.LG · cs.AI

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QM3XCFOSCPCUFWE66RHNVZGJDS}

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.

Cited by

1 paper in Pith

Reinforcement Learning for Machine Learning Engineering Agents

Receipt and verification

First computed	2026-07-05T10:59:05.145434Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

83377115d213c542d89ef44edae4c91cb5e7e4688c354b1a087866b35d0c9a2f

Aliases

arxiv: 2501.15627 · arxiv_version: 2501.15627v2 · doi: 10.48550/arxiv.2501.15627 · pith_short_12: QM3XCFOSCPCU · pith_short_16: QM3XCFOSCPCUFWE6 · pith_short_8: QM3XCFOS

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/QM3XCFOSCPCUFWE66RHNVZGJDS \
  | 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: 83377115d213c542d89ef44edae4c91cb5e7e4688c354b1a087866b35d0c9a2f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2fa74c08a3422f6dfda9950997c59ea8b1facf83935af23ec523580085523da3",
    "cross_cats_sorted": [
      "cs.AI"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2025-01-26T18:25:26Z",
    "title_canon_sha256": "40cf86c06d774b09f36b632e7f6601f47bc9f9f6f2010fe5b9ad932c0ebae663"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2501.15627",
    "kind": "arxiv",
    "version": 2
  }
}