Pith Number

pith:KX3JBMJF

pith:2018:KX3JBMJF7WCMD4E5WMSV2HJ22B

not attested not anchored not stored refs pending

Similarity encoding for learning with dirty categorical variables

Bal\'azs K\'egl (LAL, CNRS), Ga\"el Varoquaux (Parietal), Patricio Cerda (PARIETAL)

arxiv:1806.00979 v1 · 2018-06-04 · cs.LG · cs.AI · 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{KX3JBMJF7WCMD4E5WMSV2HJ22B}

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	2026-05-18T00:14:17.835994Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

55f690b125fd84c1f09db3255d1d3ad06666ab09f63d72e2a10c5b0bca9b1e4e

Aliases

arxiv: 1806.00979 · arxiv_version: 1806.00979v1 · doi: 10.48550/arxiv.1806.00979 · pith_short_12: KX3JBMJF7WCM · pith_short_16: KX3JBMJF7WCMD4E5 · pith_short_8: KX3JBMJF

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/KX3JBMJF7WCMD4E5WMSV2HJ22B \
  | 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: 55f690b125fd84c1f09db3255d1d3ad06666ab09f63d72e2a10c5b0bca9b1e4e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "231f60f8162f38fda2aaf34796c49bb9eed2ff27f05d53f0333749bf47981643",
    "cross_cats_sorted": [
      "cs.AI",
      "stat.ML"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2018-06-04T06:46:22Z",
    "title_canon_sha256": "8fac2d789d2447b8133e38f1b948bf729b58d8a1d074df3d26811809ae9db0ec"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1806.00979",
    "kind": "arxiv",
    "version": 1
  }
}