Pith Number

pith:TFO6UW44

pith:2020:TFO6UW44O6IQOTZABG73HNP3N7

not attested not anchored not stored refs pending

Demographic Bias in Presentation Attack Detection of Iris Recognition Systems

Arjan Kuijper, Florian Kirchbuchner, Meiling Fang, Naser Damer

arxiv:2003.03151 v2 · 2020-03-06 · 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{TFO6UW44O6IQOTZABG73HNP3N7}

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	2026-07-05T01:15:57.318536Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

995dea5b9c7791074f2009bfb3b5fb6fffdd093305a302458778e932e8a28eb5

Aliases

arxiv: 2003.03151 · arxiv_version: 2003.03151v2 · doi: 10.48550/arxiv.2003.03151 · pith_short_12: TFO6UW44O6IQ · pith_short_16: TFO6UW44O6IQOTZA · pith_short_8: TFO6UW44

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/TFO6UW44O6IQOTZABG73HNP3N7 \
  | 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: 995dea5b9c7791074f2009bfb3b5fb6fffdd093305a302458778e932e8a28eb5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b964349f4e32e6c6118b4db245fd960261955bb953a57d450e8d72b2d51e851a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2020-03-06T12:16:19Z",
    "title_canon_sha256": "ab44352174ace0785e4c3ffbc8b53c6ecdc0835e2f810cf33367a09b22b67802"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2003.03151",
    "kind": "arxiv",
    "version": 2
  }
}