Pith Number

pith:BGEYZGBH

pith:2015:BGEYZGBHAJPTGPIRSPTEFA76G6

not attested not anchored not stored refs pending

Multiclass Sparse Discriminant Analysis

Hui Zou, Qing Mai, Yi Yang

arxiv:1504.05845 v1 · 2015-04-22 · stat.ME

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{BGEYZGBHAJPTGPIRSPTEFA76G6}

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	2026-05-18T02:18:04.906935Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

09898c9827025f333d1193e64283fe379adc6a68d294d3fa8010de68be5ca221

Aliases

arxiv: 1504.05845 · arxiv_version: 1504.05845v1 · doi: 10.48550/arxiv.1504.05845 · pith_short_12: BGEYZGBHAJPT · pith_short_16: BGEYZGBHAJPTGPIR · pith_short_8: BGEYZGBH

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/BGEYZGBHAJPTGPIRSPTEFA76G6 \
  | 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: 09898c9827025f333d1193e64283fe379adc6a68d294d3fa8010de68be5ca221

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "84f481ea76507fe5d298844992626b416cc8d38e29279a51e3850eecf5f8ab15",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "stat.ME",
    "submitted_at": "2015-04-22T15:13:54Z",
    "title_canon_sha256": "407bbcf81f701f382140fd8f39b0e19de863ef57c550348db1c9d3b6ab0c6651"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1504.05845",
    "kind": "arxiv",
    "version": 1
  }
}