Pith Number

pith:XUP5YO5O

pith:2021:XUP5YO5OOVQVFJITYFCGH6K3E7

not attested not anchored not stored refs pending

Mask-Guided Feature Extraction and Augmentation for Ultra-Fine-Grained Visual Categorization

Miaohua Zhang, Xiaohan Yu, Yongsheng Gao, Zicheng Pan

arxiv:2109.07755 v1 · 2021-09-16 · 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{XUP5YO5OOVQVFJITYFCGH6K3E7}

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	2026-07-05T03:15:00.780928Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bd1fdc3bae756152a513c14463f95b27cc739b68873e596961d775f124e4f14c

Aliases

arxiv: 2109.07755 · arxiv_version: 2109.07755v1 · doi: 10.48550/arxiv.2109.07755 · pith_short_12: XUP5YO5OOVQV · pith_short_16: XUP5YO5OOVQVFJIT · pith_short_8: XUP5YO5O

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/XUP5YO5OOVQVFJITYFCGH6K3E7 \
  | 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: bd1fdc3bae756152a513c14463f95b27cc739b68873e596961d775f124e4f14c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ea3afb9997875fed40c36bcb0bae11c7ba1c3fac15f1a0b680b5161d78195e12",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2021-09-16T06:57:05Z",
    "title_canon_sha256": "b94438c0ed38584974be43abb84e5a71fdfeafe9c5c63b3c40c1985757fbea83"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2109.07755",
    "kind": "arxiv",
    "version": 1
  }
}