Pith Number

pith:F46NYPKP

pith:2018:F46NYPKPHDIEVL3MST2DOIPSW6

not attested not anchored not stored refs pending

Domain-Specific Human-Inspired Binarized Statistical Image Features for Iris Recognition

Adam Czajka, Daniel Moreira, Kevin W. Bowyer, Patrick J. Flynn

arxiv:1807.05248 v2 · 2018-07-13 · 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{F46NYPKPHDIEVL3MST2DOIPSW6}

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	2026-05-18T00:00:29.986767Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2f3cdc3d4f38d04aaf6c94f43721f2b7b978fd5f73034276fa6ed0268449da64

Aliases

arxiv: 1807.05248 · arxiv_version: 1807.05248v2 · doi: 10.48550/arxiv.1807.05248 · pith_short_12: F46NYPKPHDIE · pith_short_16: F46NYPKPHDIEVL3M · pith_short_8: F46NYPKP

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/F46NYPKPHDIEVL3MST2DOIPSW6 \
  | 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: 2f3cdc3d4f38d04aaf6c94f43721f2b7b978fd5f73034276fa6ed0268449da64

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "371a50c3c0d5e16be32510f618da4a58f8c1a5c93a270c3524a325fb6e97d2bb",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2018-07-13T18:57:18Z",
    "title_canon_sha256": "eec250d633d17808cf61d3b42a2fc209a59290b9f331376f44e768f14882e394"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1807.05248",
    "kind": "arxiv",
    "version": 2
  }
}