Pith Number

pith:MYZ2DRFM

pith:2001:MYZ2DRFML34NOKTAC25YIZDPWZ

not attested not anchored not stored refs pending

Machine Learning in Automated Text Categorization

Fabrizio Sebastiani

arxiv:cs/0110053 v1 · 2001-10-26 · cs.IR · 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{MYZ2DRFML34NOKTAC25YIZDPWZ}

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	2026-07-05T03:15:49.222833Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6633a1c4ac5ef8d72a6016bb84646fb644feeaefe6497abb9d1da1ae9ded7bea

Aliases

arxiv: cs/0110053 · arxiv_version: cs/0110053v1 · doi: 10.48550/arxiv.cs/0110053 · pith_short_12: MYZ2DRFML34N · pith_short_16: MYZ2DRFML34NOKTA · pith_short_8: MYZ2DRFM

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/MYZ2DRFML34NOKTAC25YIZDPWZ \
  | 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: 6633a1c4ac5ef8d72a6016bb84646fb644feeaefe6497abb9d1da1ae9ded7bea

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "18dde93a00a400b99e0f3a761708859860b49123b6905e4c24b0271ca2b621f2",
    "cross_cats_sorted": [
      "cs.LG"
    ],
    "license": "",
    "primary_cat": "cs.IR",
    "submitted_at": "2001-10-26T09:27:48Z",
    "title_canon_sha256": "88a4b1fd1f2f19c0ea94d50e95472c54644ff60fa35aaa410783a6aff9bcf04b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "cs/0110053",
    "kind": "arxiv",
    "version": 1
  }
}