Pith Number

pith:FEQ656VI

pith:2023:FEQ656VIMYMITC4AIEOXKKAUBI

not attested not anchored not stored refs pending

Longitudinal Performance of Iris Recognition in Children: Time Intervals up to Six years

Laura Holsopple, Masudul H Imtiaz, Michael Schuckers, Naveen G Venkataswamy, Priyanka Das, Stephanie Schuckers

arxiv:2303.12720 v1 · 2023-03-10 · cs.CV · eess.IV

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{FEQ656VIMYMITC4AIEOXKKAUBI}

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	2026-07-05T05:53:44.291114Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2921eefaa86618898b80411d7528140a1281012d4a5457fc641e51ee70d55130

Aliases

arxiv: 2303.12720 · arxiv_version: 2303.12720v1 · doi: 10.48550/arxiv.2303.12720 · pith_short_12: FEQ656VIMYMI · pith_short_16: FEQ656VIMYMITC4A · pith_short_8: FEQ656VI

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/FEQ656VIMYMITC4AIEOXKKAUBI \
  | 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: 2921eefaa86618898b80411d7528140a1281012d4a5457fc641e51ee70d55130

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0b6f88060c49465653c7485844362d3031ba54fd9127469e964b04ed4eb1ffb0",
    "cross_cats_sorted": [
      "eess.IV"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2023-03-10T01:39:09Z",
    "title_canon_sha256": "a7702fdf9873e1073225132e0f45210a767c4d765fbda3cd16080ff305f45378"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2303.12720",
    "kind": "arxiv",
    "version": 1
  }
}