Pith Number

pith:NBIEEDCD

pith:2018:NBIEEDCDHH22NLR2T6DDWX73D7

not attested not anchored not stored refs pending

Topic representation: finding more representative words in topic models

Changchun Li, Jihong Ouyang, Jinjin Chi, Ximing Li, Xinhua Wang, Xueyang Dong

arxiv:1810.10307 v1 · 2018-10-23 · cs.IR · cs.LG · 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{NBIEEDCDHH22NLR2T6DDWX73D7}

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	2026-05-18T00:02:23.585089Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6850420c4339f5a6ae3a9f863b5ffb1fdb25c103d173be68d74ab6c083fd06a8

Aliases

arxiv: 1810.10307 · arxiv_version: 1810.10307v1 · doi: 10.48550/arxiv.1810.10307 · pith_short_12: NBIEEDCDHH22 · pith_short_16: NBIEEDCDHH22NLR2 · pith_short_8: NBIEEDCD

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/NBIEEDCDHH22NLR2T6DDWX73D7 \
  | 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: 6850420c4339f5a6ae3a9f863b5ffb1fdb25c103d173be68d74ab6c083fd06a8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c226d5d5f8d36e755e640e645ad0fcb5a141dd8acacfa936199ca0121c038954",
    "cross_cats_sorted": [
      "cs.LG",
      "stat.ML"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IR",
    "submitted_at": "2018-10-23T04:33:49Z",
    "title_canon_sha256": "7008c7c2f5f26e94d650c968c8a0363b8491251ccf80d9f451e8b171ddf9bb69"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1810.10307",
    "kind": "arxiv",
    "version": 1
  }
}