Pith Number

pith:CDLQOXZV

pith:2019:CDLQOXZVUU6ZM3LU4TRDAIKPYG

not attested not anchored not stored refs pending

My Approach = Your Apparatus? Entropy-Based Topic Modeling on Multiple Domain-Specific Text Collections

Julian Risch, Ralf Krestel

arxiv:1911.11240 v1 · 2019-11-25 · cs.IR · cs.DL

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{CDLQOXZVUU6ZM3LU4TRDAIKPYG}

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	2026-07-05T00:22:07.745811Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

10d7075f35a53d966d74e4e230214fc184a7070c8d21e5bacc91451a6a38065e

Aliases

arxiv: 1911.11240 · arxiv_version: 1911.11240v1 · doi: 10.48550/arxiv.1911.11240 · pith_short_12: CDLQOXZVUU6Z · pith_short_16: CDLQOXZVUU6ZM3LU · pith_short_8: CDLQOXZV

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/CDLQOXZVUU6ZM3LU4TRDAIKPYG \
  | 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: 10d7075f35a53d966d74e4e230214fc184a7070c8d21e5bacc91451a6a38065e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "18b8ccb5b6e09554934424d2b3397c42826e2909ac9e66ceaf7b607d6361bb62",
    "cross_cats_sorted": [
      "cs.DL"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IR",
    "submitted_at": "2019-11-25T21:29:59Z",
    "title_canon_sha256": "770fd4e3b540eb6b6a09234dbbabe56dbb3630a8c0723ba63e6f2281c49dff1a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1911.11240",
    "kind": "arxiv",
    "version": 1
  }
}