Pith Number

pith:35NK4RKH

pith:2017:35NK4RKH4C4CRFMPQNZFH4DC2U

not attested not anchored not stored refs pending

An Analysis of 1-to-First Matching in Iris Recognition

Andrey Kuehlkamp, Kevin W. Bowyer

arxiv:1702.01167 v1 · 2017-02-03 · 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{35NK4RKH4C4CRFMPQNZFH4DC2U}

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	2026-05-18T00:51:24.358826Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

df5aae4547e0b828958f837253f062d5364c9a00736d31d04548c07910849523

Aliases

arxiv: 1702.01167 · arxiv_version: 1702.01167v1 · doi: 10.48550/arxiv.1702.01167 · pith_short_12: 35NK4RKH4C4C · pith_short_16: 35NK4RKH4C4CRFMP · pith_short_8: 35NK4RKH

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/35NK4RKH4C4CRFMPQNZFH4DC2U \
  | 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: df5aae4547e0b828958f837253f062d5364c9a00736d31d04548c07910849523

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9cf36abe6082042df280be8433282936e3582a6863bc26fdee6cc8ddee265c44",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2017-02-03T21:24:10Z",
    "title_canon_sha256": "613999e629ed4eb3f6048f9bebe30900caaab86729afe101967fa3ac510481f7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1702.01167",
    "kind": "arxiv",
    "version": 1
  }
}