Pith Number

pith:7QTO7OEM

pith:2012:7QTO7OEMYXYFMPY2IFWXP3RX3Y

not attested not anchored not stored refs pending

A Multimodal Biometric System Using Linear Discriminant Analysis For Improved Performance

Aamir Khan, Aasim Khurshid, Adeel Akram, Muhammad Farhan

arxiv:1201.3720 v1 · 2012-01-18 · 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{7QTO7OEMYXYFMPY2IFWXP3RX3Y}

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	2026-05-18T04:04:18.202628Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fc26efb88cc5f0563f1a416d77ee37de1448b7829eb04ab5a422a82d42c2e4fe

Aliases

arxiv: 1201.3720 · arxiv_version: 1201.3720v1 · doi: 10.48550/arxiv.1201.3720 · pith_short_12: 7QTO7OEMYXYF · pith_short_16: 7QTO7OEMYXYFMPY2 · pith_short_8: 7QTO7OEM

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/7QTO7OEMYXYFMPY2IFWXP3RX3Y \
  | 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: fc26efb88cc5f0563f1a416d77ee37de1448b7829eb04ab5a422a82d42c2e4fe

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "32598a7818970f565f9caa3c3b730732f3ddcd70b0fa14875fa7651de07d6730",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2012-01-18T08:20:00Z",
    "title_canon_sha256": "47e5c8132a50cf3d67383659f0185452fc8070e5a9b9b4dbea1e4f211f778b1c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1201.3720",
    "kind": "arxiv",
    "version": 1
  }
}