Pith Number

pith:ITPM2N2W

pith:2015:ITPM2N2WNUVO55DNBWXWEATAJC

not attested not anchored not stored refs pending

Kernel Additive Principal Components

Andreas Buja, Xin Lu Tan, Zongming Ma

arxiv:1511.06821 v1 · 2015-11-21 · stat.ME · 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{ITPM2N2WNUVO55DNBWXWEATAJC}

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	2026-05-18T01:26:17.438797Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

44decd37566d2aeef46d0daf620260489b0d802f0650d9419fec7217287305ad

Aliases

arxiv: 1511.06821 · arxiv_version: 1511.06821v1 · doi: 10.48550/arxiv.1511.06821 · pith_short_12: ITPM2N2WNUVO · pith_short_16: ITPM2N2WNUVO55DN · pith_short_8: ITPM2N2W

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/ITPM2N2WNUVO55DNBWXWEATAJC \
  | 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: 44decd37566d2aeef46d0daf620260489b0d802f0650d9419fec7217287305ad

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "365d3448dc41d5111f4d8003b26b99490e852dd7d07794a2523d4f4e0c998b10",
    "cross_cats_sorted": [
      "stat.ML"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "stat.ME",
    "submitted_at": "2015-11-21T03:12:04Z",
    "title_canon_sha256": "9f3092d440f217e5d7fb64f170fdef9e25b30382e679abe50c1187ce231a171f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1511.06821",
    "kind": "arxiv",
    "version": 1
  }
}