Pith Number

pith:LD6PAIM6

pith:2016:LD6PAIM64FRPF43KS6J3DFABP3

not attested not anchored not stored refs pending

Spectral Learning for Supervised Topic Models

Jun Zhu, Yining Wang, Yong Ren

arxiv:1602.06025 v1 · 2016-02-19 · cs.LG · 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{LD6PAIM64FRPF43KS6J3DFABP3}

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	2026-05-18T01:20:21.786900Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

58fcf0219ee162f2f36a9793b194017eda4ea7676658e321347d50398b5e4042

Aliases

arxiv: 1602.06025 · arxiv_version: 1602.06025v1 · doi: 10.48550/arxiv.1602.06025 · pith_short_12: LD6PAIM64FRP · pith_short_16: LD6PAIM64FRPF43K · pith_short_8: LD6PAIM6

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/LD6PAIM64FRPF43KS6J3DFABP3 \
  | 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: 58fcf0219ee162f2f36a9793b194017eda4ea7676658e321347d50398b5e4042

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8a250e45f335f94427a5803ce295fb799c8c6e780380c42fac416befb46c88f3",
    "cross_cats_sorted": [
      "cs.CL",
      "cs.IR",
      "stat.ML"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2016-02-19T02:07:20Z",
    "title_canon_sha256": "44c53487ff2911e65f8ad35419bf968a038c7bfc48b1b47b7d2b19f403fa3fc2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1602.06025",
    "kind": "arxiv",
    "version": 1
  }
}