Pith Number

pith:OKJOF5ZP

pith:2025:OKJOF5ZPAJKB7MAQTAQPE2AYFL

not attested not anchored not stored refs pending

Meta-learning of shared linear representations beyond well-specified linear regression

Laurent Massouli\'e, Mathieu Even

arxiv:2501.18975 v2 · 2025-01-31 · 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{OKJOF5ZPAJKB7MAQTAQPE2AYFL}

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	2026-07-05T10:13:47.118764Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7292e2f72f02541fb0109820f268182ad3329f08d2a17b4c77a69ff909288eeb

Aliases

arxiv: 2501.18975 · arxiv_version: 2501.18975v2 · doi: 10.48550/arxiv.2501.18975 · pith_short_12: OKJOF5ZPAJKB · pith_short_16: OKJOF5ZPAJKB7MAQ · pith_short_8: OKJOF5ZP

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/OKJOF5ZPAJKB7MAQTAQPE2AYFL \
  | 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: 7292e2f72f02541fb0109820f268182ad3329f08d2a17b4c77a69ff909288eeb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4c4674308f0857d4e788fb26d25c56032e2c86613403239a265fdb8c84ba1764",
    "cross_cats_sorted": [
      "stat.ML"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2025-01-31T09:11:06Z",
    "title_canon_sha256": "060471ddb2406589a68f511cb31bbe985486990cd48b3adf9e570d88c57fd091"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2501.18975",
    "kind": "arxiv",
    "version": 2
  }
}