Pith Number

pith:LLYLT5AN

pith:2019:LLYLT5ANXPERUP3DTCMOR7D2V3

not attested not anchored not stored refs pending

Does Face Recognition Accuracy Get Better With Age? Deep Face Matchers Say No

Kevin W. Bowyer, Kushal Vangara, Michael C. King, V\'itor Albiero

arxiv:1911.06396 v1 · 2019-11-14 · 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{LLYLT5ANXPERUP3DTCMOR7D2V3}

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	2026-07-05T00:19:23.023662Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5af0b9f40dbbc91a3f639898e8fc7aaef51e73ea50e28bf0661ffd9aee33f6f0

Aliases

arxiv: 1911.06396 · arxiv_version: 1911.06396v1 · doi: 10.48550/arxiv.1911.06396 · pith_short_12: LLYLT5ANXPER · pith_short_16: LLYLT5ANXPERUP3D · pith_short_8: LLYLT5AN

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/LLYLT5ANXPERUP3DTCMOR7D2V3 \
  | 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: 5af0b9f40dbbc91a3f639898e8fc7aaef51e73ea50e28bf0661ffd9aee33f6f0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "35233ca80eb435c1cca908467fa89e0526f0d5ffad0699da5659f9fd9f14d5c0",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2019-11-14T21:52:54Z",
    "title_canon_sha256": "e799cb2ff6451c80d96b5aea0bbcb82c6d990e45598693f772b4c638e3eefa0d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1911.06396",
    "kind": "arxiv",
    "version": 1
  }
}