Pith Number

pith:BFD2HX4B

pith:2026:BFD2HX4BQTFN4M3NXWM3ZMAJ5N

not attested not anchored not stored refs pending

Efficient, Validation-Free Intrinsic Quality Estimation for Large-Scale Face Recognition Datasets

Kaicheng Yang, Meng Yang, Yin Xie, Yongle Zhao, Zhichao Chen, Ziyong Feng

arxiv:2605.29720 v1 · 2026-05-28 · cs.CV · cs.LG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{BFD2HX4BQTFN4M3NXWM3ZMAJ5N}

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	2026-05-29T01:05:56.910588Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0947a3df8184cade336dbd99bcb009eb5ecc0ee14dba1030d2f21d70f3ba74c3

Aliases

arxiv: 2605.29720 · arxiv_version: 2605.29720v1 · doi: 10.48550/arxiv.2605.29720 · pith_short_12: BFD2HX4BQTFN · pith_short_16: BFD2HX4BQTFN4M3N · pith_short_8: BFD2HX4B

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/BFD2HX4BQTFN4M3NXWM3ZMAJ5N \
  | 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: 0947a3df8184cade336dbd99bcb009eb5ecc0ee14dba1030d2f21d70f3ba74c3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "62249b1a3d97f6a82b12d12ee8bf7bccbafb6e3e82ac80239b1c83aa8b3c4763",
    "cross_cats_sorted": [
      "cs.LG"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2026-05-28T10:15:46Z",
    "title_canon_sha256": "6b39584e6eeb9bf10ae68c9ac48b4ee3e5bf1bb330b40e8e273abc38ed9f3e54"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2605.29720",
    "kind": "arxiv",
    "version": 1
  }
}