Pith Number

pith:CCIUOKJZ

pith:2011:CCIUOKJZLS7ODQPWUDBCFTZMIS

not attested not anchored not stored refs pending

A Statistical Nonparametric Approach of Face Recognition: Combination of Eigenface & Modified k-Means Clustering

Gautam Sanyal, Prithwiraj Sen, Soumen Bag, Soumen Barik

arxiv:1104.1237 v1 · 2011-04-07 · cs.CV

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{CCIUOKJZLS7ODQPWUDBCFTZMIS}

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	2026-05-18T04:24:52.590982Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

10914729395cbee1c1f6a0c222cf2c44a92a8200a2085272682a58612c391619

Aliases

arxiv: 1104.1237 · arxiv_version: 1104.1237v1 · doi: 10.48550/arxiv.1104.1237 · pith_short_12: CCIUOKJZLS7O · pith_short_16: CCIUOKJZLS7ODQPW · pith_short_8: CCIUOKJZ

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/CCIUOKJZLS7ODQPWUDBCFTZMIS \
  | 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: 10914729395cbee1c1f6a0c222cf2c44a92a8200a2085272682a58612c391619

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f2e43811c7070e13437b6001d77ea1be734803a8162424f35873378f8eb29d23",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2011-04-07T03:17:08Z",
    "title_canon_sha256": "a57734559eaade01602724381c6046d15332d2a61e89c108ccc729ffb3c1affd"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1104.1237",
    "kind": "arxiv",
    "version": 1
  }
}