Pith Number

pith:62QKJUZN

pith:2010:62QKJUZNY6FSN537NZQR52RLW2

not attested not anchored not stored refs pending

Semi-Supervised Kernel PCA

Christian Walder, Lars Kai Hansen, Morten M{\o}rup, Ricardo Henao

arxiv:1008.1398 v1 · 2010-08-08 · 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{62QKJUZNY6FSN537NZQR52RLW2}

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	2026-05-18T04:42:24.345983Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f6a0a4d32dc78b26f77f6e611eea2bb68242cfa4145abfff4e09d268cb3ae629

Aliases

arxiv: 1008.1398 · arxiv_version: 1008.1398v1 · doi: 10.48550/arxiv.1008.1398 · pith_short_12: 62QKJUZNY6FS · pith_short_16: 62QKJUZNY6FSN537 · pith_short_8: 62QKJUZN

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/62QKJUZNY6FSN537NZQR52RLW2 \
  | 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: f6a0a4d32dc78b26f77f6e611eea2bb68242cfa4145abfff4e09d268cb3ae629

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5df264c814af9a39e896e1eeb1949b52c37663ccf5ca8c3d1a2ecdab8857f61e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2010-08-08T11:25:12Z",
    "title_canon_sha256": "d253d9ff88d262e603759118bbf9e2ec47d5f8957efff4fc0e34a604cf2e64b6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1008.1398",
    "kind": "arxiv",
    "version": 1
  }
}