Pith Number

pith:KFDWPMWU

pith:2015:KFDWPMWUZQNXPWWRX32I5W4FIG

not attested not anchored not stored refs pending

Improving Term Frequency Normalization for Multi-topical Documents, and Application to Language Modeling Approaches

In-Su Kang, Jong-Hyeok Lee, Seung-Hoon Na

arxiv:1502.02277 v1 · 2015-02-08 · cs.IR · cs.CL

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{KFDWPMWUZQNXPWWRX32I5W4FIG}

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	2026-05-18T02:27:43.037736Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

514767b2d4cc1b77dad1bef48edb85418aa77af9f4d4643cbab7b162a692fa98

Aliases

arxiv: 1502.02277 · arxiv_version: 1502.02277v1 · doi: 10.48550/arxiv.1502.02277 · pith_short_12: KFDWPMWUZQNX · pith_short_16: KFDWPMWUZQNXPWWR · pith_short_8: KFDWPMWU

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/KFDWPMWUZQNXPWWRX32I5W4FIG \
  | 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: 514767b2d4cc1b77dad1bef48edb85418aa77af9f4d4643cbab7b162a692fa98

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b63b5395d14b74549422b8f8ee1f38d3f7ede07ed02baad18f183d2695c9e86f",
    "cross_cats_sorted": [
      "cs.CL"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IR",
    "submitted_at": "2015-02-08T17:32:44Z",
    "title_canon_sha256": "d967e2f7d35065f73f3b4535a05564b808c34bb7c09395987814316924838845"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1502.02277",
    "kind": "arxiv",
    "version": 1
  }
}