Pith Number

pith:RQUODYYJ

pith:2018:RQUODYYJ6TC3SMPSAVNSJ2DQ7A

not attested not anchored not stored refs pending

HiTR: Hierarchical Topic Model Re-estimation for Measuring Topical Diversity of Documents

Hosein Azarbonyad, Jaap Kamps, Maarten de Rijke, Maarten Marx, Mostafa Dehghani, Tom Kenter

arxiv:1810.05436 v1 · 2018-10-12 · cs.CL · 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{RQUODYYJ6TC3SMPSAVNSJ2DQ7A}

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	2026-05-18T00:03:30.567605Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8c28e1e309f4c5b931f2055b24e870f804d81458be2b86abc115f43e49c02f9e

Aliases

arxiv: 1810.05436 · arxiv_version: 1810.05436v1 · doi: 10.48550/arxiv.1810.05436 · pith_short_12: RQUODYYJ6TC3 · pith_short_16: RQUODYYJ6TC3SMPS · pith_short_8: RQUODYYJ

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/RQUODYYJ6TC3SMPSAVNSJ2DQ7A \
  | 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: 8c28e1e309f4c5b931f2055b24e870f804d81458be2b86abc115f43e49c02f9e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bc43ee25593f0e4b82db1bb18a09227223a35149baf1372434efc9c31c740623",
    "cross_cats_sorted": [
      "cs.IR",
      "cs.LG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2018-10-12T10:02:23Z",
    "title_canon_sha256": "5332a9f297df2a84e3571d7f7c4b8a1a7290df7f626ff7b18cb2e41ee4b50a35"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1810.05436",
    "kind": "arxiv",
    "version": 1
  }
}