Pith Number

pith:VIP3HUZP

pith:2025:VIP3HUZPL246WLRZYXZXVVVTGD

not attested not anchored not stored refs pending

A Comparative Analysis of Principal Component Analysis (PCA) and Singular Value Decomposition (SVD) as Dimensionality Reduction Techniques

Gregory Bell, Michael Gyimadu, Ph.D

arxiv:2506.16663 v3 · 2025-06-20 · cs.CV · cs.NA · math.NA

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{VIP3HUZPL246WLRZYXZXVVVTGD}

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	2026-07-05T11:27:31.263657Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

aa1fb3d32f5eb9eb2e39c5f37ad6b330fa167d9d4a00ac752097d9d5d9a92bca

Aliases

arxiv: 2506.16663 · arxiv_version: 2506.16663v3 · doi: 10.48550/arxiv.2506.16663 · pith_short_12: VIP3HUZPL246 · pith_short_16: VIP3HUZPL246WLRZ · pith_short_8: VIP3HUZP

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/VIP3HUZPL246WLRZYXZXVVVTGD \
  | 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: aa1fb3d32f5eb9eb2e39c5f37ad6b330fa167d9d4a00ac752097d9d5d9a92bca

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e0aa4692901b3612a324a133e82b8f95c1cda6254c2dd0e578da5eb6b470434c",
    "cross_cats_sorted": [
      "cs.NA",
      "math.NA"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2025-06-20T00:19:45Z",
    "title_canon_sha256": "cd2cc519b1c4816fc24f41580c2648aab3b5568569650d8c1bc4aed96eccc6d7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2506.16663",
    "kind": "arxiv",
    "version": 3
  }
}