Pith Number

pith:US3OW5YC

pith:2025:US3OW5YCGXBNMMTWBOP7H5TINL

not attested not anchored not stored refs pending

Efficient Face Image Quality Assessment via Self-training and Knowledge Distillation

Dandan Zhu, Guangtao Zhai, Jun Jia, Linhan Cao, Wei Sun, Weixia Zhang, Xiangyang Zhu, Xiongkuo Min

arxiv:2507.15709 v2 · 2025-07-21 · 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{US3OW5YCGXBNMMTWBOP7H5TINL}

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	2026-07-05T11:51:32.461993Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a4b6eb770235c2d632760b9ff3f6686ac0d3ba6b43ed6dd9ae313ceb7e6522dd

Aliases

arxiv: 2507.15709 · arxiv_version: 2507.15709v2 · doi: 10.48550/arxiv.2507.15709 · pith_short_12: US3OW5YCGXBN · pith_short_16: US3OW5YCGXBNMMTW · pith_short_8: US3OW5YC

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/US3OW5YCGXBNMMTWBOP7H5TINL \
  | 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: a4b6eb770235c2d632760b9ff3f6686ac0d3ba6b43ed6dd9ae313ceb7e6522dd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bfb3e3028e581a8a08cb7ca1193fda99c3bc2f87f3f516101a2207df340ab5ce",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2025-07-21T15:17:01Z",
    "title_canon_sha256": "d9a332f1c69396d32eaa2beb31861c152c68e6fe45dbc3f1c55d4851d06d81c2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2507.15709",
    "kind": "arxiv",
    "version": 2
  }
}