Pith Number

pith:I5LM5VNN

pith:2022:I5LM5VNNQQK6I2EBVXOPFLVTFN

not attested not anchored not stored refs pending

Variable Clustering via Distributionally Robust Nodewise Regression

Kaizheng Wang, Xiao Xu, Xun Yu Zhou

arxiv:2212.07944 v3 · 2022-12-15 · cs.LG · math.OC · q-fin.CP · q-fin.PM · q-fin.ST

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{I5LM5VNNQQK6I2EBVXOPFLVTFN}

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	2026-05-26T01:02:24.190744Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4756ced5ad8415e46881addcf2aeb32b549914968daabe169048b37f220ceee7

Aliases

arxiv: 2212.07944 · arxiv_version: 2212.07944v3 · doi: 10.48550/arxiv.2212.07944 · pith_short_12: I5LM5VNNQQK6 · pith_short_16: I5LM5VNNQQK6I2EB · pith_short_8: I5LM5VNN

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/I5LM5VNNQQK6I2EBVXOPFLVTFN \
  | 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: 4756ced5ad8415e46881addcf2aeb32b549914968daabe169048b37f220ceee7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7fe93db7639e5a6cd925bb46a40c4e567185b4f7e4fa6366e1ed82b34d8e329e",
    "cross_cats_sorted": [
      "math.OC",
      "q-fin.CP",
      "q-fin.PM",
      "q-fin.ST"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2022-12-15T16:23:25Z",
    "title_canon_sha256": "a2d815c8339d1254a312624dbabb9dc37e009441663e8c906ed35c8046fc6439"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2212.07944",
    "kind": "arxiv",
    "version": 3
  }
}