Pith Number

pith:XIVJUNFW

pith:2014:XIVJUNFWGJULKXRFQZVZ2UATTV

not attested not anchored not stored refs pending

A theoretical contribution to the fast implementation of null linear discriminant analysis method using random matrix multiplication with scatter matrices

Gang Wu, Ting-ting Feng

arxiv:1409.2579 v1 · 2014-09-09 · cs.NA · cs.CV · 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{XIVJUNFWGJULKXRFQZVZ2UATTV}

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	2026-05-18T02:43:10.251381Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ba2a9a34b63268b55e25866b9d50139d739a68ca53225292a6793fa93d21e0c4

Aliases

arxiv: 1409.2579 · arxiv_version: 1409.2579v1 · doi: 10.48550/arxiv.1409.2579 · pith_short_12: XIVJUNFWGJUL · pith_short_16: XIVJUNFWGJULKXRF · pith_short_8: XIVJUNFW

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/XIVJUNFWGJULKXRFQZVZ2UATTV \
  | 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: ba2a9a34b63268b55e25866b9d50139d739a68ca53225292a6793fa93d21e0c4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "84de504a9159c2391bed4c02ef12d8266c80e9561b59cd3f88abc0b1fe57e99e",
    "cross_cats_sorted": [
      "cs.CV",
      "cs.LG"
    ],
    "license": "http://creativecommons.org/licenses/by/3.0/",
    "primary_cat": "cs.NA",
    "submitted_at": "2014-09-09T11:46:40Z",
    "title_canon_sha256": "b6010b47400debf88df3045851cf766cac94b8b589d4823084db7d756cb36bb8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1409.2579",
    "kind": "arxiv",
    "version": 1
  }
}