Pith Number

pith:LWQCFS33

pith:2020:LWQCFS33UC4OC6KWLHRYXD74UK

not attested not anchored not stored refs pending

Face Quality Estimation and Its Correlation to Demographic and Non-Demographic Bias in Face Recognition

Arjan Kuijper, Florian Kirchbuchner, Jan Niklas Kolf, Naser Damer, Philipp Terh\"orst

arxiv:2004.01019 v3 · 2020-04-02 · 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{LWQCFS33UC4OC6KWLHRYXD74UK}

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	2026-07-05T01:17:40.511451Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5da022cb7ba0b8e1795659e38b8ffca2baf55f0e9bc1651d27dc29127887706f

Aliases

arxiv: 2004.01019 · arxiv_version: 2004.01019v3 · doi: 10.48550/arxiv.2004.01019 · pith_short_12: LWQCFS33UC4O · pith_short_16: LWQCFS33UC4OC6KW · pith_short_8: LWQCFS33

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/LWQCFS33UC4OC6KWLHRYXD74UK \
  | 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: 5da022cb7ba0b8e1795659e38b8ffca2baf55f0e9bc1651d27dc29127887706f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "35759562db88b71ab5bae83c576a5fd5c6bf61ee6b1bbada9b84a441f026e734",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2020-04-02T14:19:12Z",
    "title_canon_sha256": "658cb8d878b5f868b6b68967d3d8fe92d6f83a1ff51f75a89d46b7b345ab6396"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2004.01019",
    "kind": "arxiv",
    "version": 3
  }
}