Pith Number

pith:KSP37QVU

pith:2019:KSP37QVUCJJPSYBSOT3DOQBWIX

not attested not anchored not stored refs pending

Text Classification Algorithms: A Survey

Donald E. Brown, Kamran Kowsari, Kiana Jafari Meimandi, Laura E. Barnes, Mojtaba Heidarysafa, Sanjana Mendu

arxiv:1904.08067 v5 · 2019-04-17 · cs.LG · cs.AI · cs.CL · cs.IR · 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{KSP37QVUCJJPSYBSOT3DOQBWIX}

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	2026-07-05T01:04:27.781397Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

549fbfc2b41252f9603274f637403645f84b23f546a3732eda406fdee6641913

Aliases

arxiv: 1904.08067 · arxiv_version: 1904.08067v5 · doi: 10.48550/arxiv.1904.08067 · pith_short_12: KSP37QVUCJJP · pith_short_16: KSP37QVUCJJPSYBS · pith_short_8: KSP37QVU

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/KSP37QVUCJJPSYBSOT3DOQBWIX \
  | 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: 549fbfc2b41252f9603274f637403645f84b23f546a3732eda406fdee6641913

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6e0ffe127964ee2ae002c50ee7ea9d96c22701e4d86da1f9baddedfd4f47f950",
    "cross_cats_sorted": [
      "cs.AI",
      "cs.CL",
      "cs.IR",
      "stat.ML"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2019-04-17T03:29:05Z",
    "title_canon_sha256": "4253696ca5f314fe68892be946cefabed55793005758114014075a57212a94d5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1904.08067",
    "kind": "arxiv",
    "version": 5
  }
}