Pith Number

pith:ILICCA4T

pith:2012:ILICCA4TUUEJAY6PSRO3ANWZQ5

not attested not anchored not stored refs pending

Generalized Principal Component Analysis (GPCA)

Rene Vidal, Shankar Sastry, Yi Ma

arxiv:1202.4002 v1 · 2012-02-17 · 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{ILICCA4TUUEJAY6PSRO3ANWZQ5}

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	2026-05-18T04:02:02.244840Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

42d0210393a5089063cf945db036d987555b6388bad1dda208c43ae9f8a10679

Aliases

arxiv: 1202.4002 · arxiv_version: 1202.4002v1 · doi: 10.48550/arxiv.1202.4002 · pith_short_12: ILICCA4TUUEJ · pith_short_16: ILICCA4TUUEJAY6P · pith_short_8: ILICCA4T

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/ILICCA4TUUEJAY6PSRO3ANWZQ5 \
  | 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: 42d0210393a5089063cf945db036d987555b6388bad1dda208c43ae9f8a10679

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e289fa4994c50fcceeb4bfc12b7e0cc15f1c30b6d5930232fb49cfb6861bd2ba",
    "cross_cats_sorted": [
      "cs.LG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2012-02-17T20:07:25Z",
    "title_canon_sha256": "b5f9dc7c57943df1a66c805e2469ac931bf9277599089811937e923bd83dc1e3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1202.4002",
    "kind": "arxiv",
    "version": 1
  }
}