Pith Number

pith:IMQ376G5

pith:2019:IMQ376G5T5HR3GERD3XNHGCPU2

not attested not anchored not stored refs pending

Development of email classifier in Brazilian Portuguese using feature selection for automatic response

Arthur Gola de Paula, Rogerio Bonatti

arxiv:1907.04905 v1 · 2019-07-08 · cs.IR · cs.CL · 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{IMQ376G5T5HR3GERD3XNHGCPU2}

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	2026-05-17T23:40:54.586803Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4321bff8dd9f4f1d98911eeed3984fa69f9ca620d48c86660104c1b9591dfa20

Aliases

arxiv: 1907.04905 · arxiv_version: 1907.04905v1 · doi: 10.48550/arxiv.1907.04905 · pith_short_12: IMQ376G5T5HR · pith_short_16: IMQ376G5T5HR3GER · pith_short_8: IMQ376G5

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/IMQ376G5T5HR3GERD3XNHGCPU2 \
  | 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: 4321bff8dd9f4f1d98911eeed3984fa69f9ca620d48c86660104c1b9591dfa20

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d04c4241441e5626c22cc1e5e9a1bede6f389b5fdbeadc045f54713781f0dbee",
    "cross_cats_sorted": [
      "cs.CL",
      "cs.LG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IR",
    "submitted_at": "2019-07-08T03:24:53Z",
    "title_canon_sha256": "9add44f4691eb2781444beffd7af66c1256835e7f7b07de7023f719fcb7b41c2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1907.04905",
    "kind": "arxiv",
    "version": 1
  }
}