Pith Number

pith:AP2FNMG4

pith:2019:AP2FNMG4MHK52QR3FDNX4B5RA6

not attested not anchored not stored refs pending

Iris Recognition with Image Segmentation Employing Retrained Off-the-Shelf Deep Neural Networks

Adam Czajka, Daniel Kerrigan, Kevin Bowyer, Mateusz Trokielewicz

arxiv:1901.01028 v1 · 2019-01-04 · 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{AP2FNMG4MHK52QR3FDNX4B5RA6}

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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.

Cited by

1 paper in Pith

ThirdEye: Triplet Based Iris Recognition without Normalization

Receipt and verification

First computed	2026-05-17T23:56:57.329046Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

03f456b0dc61d5dd423b28db7e07b1078edf5654f14329aef79242dbe79776ed

Aliases

arxiv: 1901.01028 · arxiv_version: 1901.01028v1 · doi: 10.48550/arxiv.1901.01028 · pith_short_12: AP2FNMG4MHK5 · pith_short_16: AP2FNMG4MHK52QR3 · pith_short_8: AP2FNMG4

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/AP2FNMG4MHK52QR3FDNX4B5RA6 \
  | 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: 03f456b0dc61d5dd423b28db7e07b1078edf5654f14329aef79242dbe79776ed

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c925482b063cdb8f6ef775373f3a31adc44d974948a7d89f67de67ff0270cd8f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2019-01-04T09:20:13Z",
    "title_canon_sha256": "6c4944259a327ef162564757f72f90bd0062d503584b40aa5dfa8fee4776ebe6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1901.01028",
    "kind": "arxiv",
    "version": 1
  }
}