Pith Number

pith:YF2C4NQ4

pith:2014:YF2C4NQ4S5OFWBIZ3MTGDGEXQW

not attested not anchored not stored refs pending

Implicitly Constrained Semi-Supervised Linear Discriminant Analysis

Jesse H. Krijthe, Marco Loog

arxiv:1411.4521 v1 · 2014-11-17 · stat.ML · 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{YF2C4NQ4S5OFWBIZ3MTGDGEXQW}

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	2026-05-18T02:35:45.573437Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c1742e361c975c5b0519db2661989785876881c80fc961cce49d4b8783f0d9b2

Aliases

arxiv: 1411.4521 · arxiv_version: 1411.4521v1 · doi: 10.48550/arxiv.1411.4521 · pith_short_12: YF2C4NQ4S5OF · pith_short_16: YF2C4NQ4S5OFWBIZ · pith_short_8: YF2C4NQ4

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/YF2C4NQ4S5OFWBIZ3MTGDGEXQW \
  | 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: c1742e361c975c5b0519db2661989785876881c80fc961cce49d4b8783f0d9b2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4432fd91639d84b7f30713d339840fad7f20334c240e38b4a6a35c42d3cefb97",
    "cross_cats_sorted": [
      "cs.LG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "stat.ML",
    "submitted_at": "2014-11-17T15:57:11Z",
    "title_canon_sha256": "5f779640b65ca7d5f2ee70c5ae1737212a962b20e56b3f4edadbecbeeba26a2e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1411.4521",
    "kind": "arxiv",
    "version": 1
  }
}