Pith Number

pith:RF3N2HQ5

pith:2018:RF3N2HQ5NEMZWAZV3325RRH5TF

not attested not anchored not stored refs pending

XPCA: Extending PCA for a Combination of Discrete and Continuous Variables

Clifford Anderson-Bergman, Kina Kincher-Winoto, Tamara G. Kolda

arxiv:1808.07510 v1 · 2018-08-22 · 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{RF3N2HQ5NEMZWAZV3325RRH5TF}

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	2026-05-18T00:07:27.113396Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8976dd1e1d69199b0335def5d8c4fd994071f1b68cc591f704b7afef6fa06944

Aliases

arxiv: 1808.07510 · arxiv_version: 1808.07510v1 · doi: 10.48550/arxiv.1808.07510 · pith_short_12: RF3N2HQ5NEMZ · pith_short_16: RF3N2HQ5NEMZWAZV · pith_short_8: RF3N2HQ5

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/RF3N2HQ5NEMZWAZV3325RRH5TF \
  | 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: 8976dd1e1d69199b0335def5d8c4fd994071f1b68cc591f704b7afef6fa06944

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "29195c545aa0b9c4ef2b983b7e7591e284b439baeb3ac99a86d4cda89af291f3",
    "cross_cats_sorted": [
      "cs.LG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "stat.ML",
    "submitted_at": "2018-08-22T18:25:53Z",
    "title_canon_sha256": "c41e07c98c223a1b578bf545beb5de1e8030cdb44231c6d214d30d1471f5468b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1808.07510",
    "kind": "arxiv",
    "version": 1
  }
}