Pith Number

pith:ZKQCGFES

pith:2016:ZKQCGFESUT7WBLBYFKMTGOK5KD

not attested not anchored not stored refs pending

Improved Eigenfeature Regularization for Face Identification

Bappaditya Mandal

arxiv:1602.03256 v1 · 2016-02-10 · 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{ZKQCGFESUT7WBLBYFKMTGOK5KD}

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	2026-05-18T01:21:00.401295Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

caa0231492a4ff60ac382a9933395d50fe7601f5af976e0fa4f3704baba4d28b

Aliases

arxiv: 1602.03256 · arxiv_version: 1602.03256v1 · doi: 10.48550/arxiv.1602.03256 · pith_short_12: ZKQCGFESUT7W · pith_short_16: ZKQCGFESUT7WBLBY · pith_short_8: ZKQCGFES

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/ZKQCGFESUT7WBLBYFKMTGOK5KD \
  | 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: caa0231492a4ff60ac382a9933395d50fe7601f5af976e0fa4f3704baba4d28b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bdca576fd0de53d39cafb68d15721e36ccc154255f065ead461f221889915d97",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2016-02-10T03:52:11Z",
    "title_canon_sha256": "a6215067fbafb2236f250ddf76863859bec7036a9eab855af69c477a470d9318"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1602.03256",
    "kind": "arxiv",
    "version": 1
  }
}