Pith Number

pith:RHACOX2K

pith:2019:RHACOX2KICTAUSLFZRU3KLHY5S

not attested not anchored not stored refs pending

Unsupervised Part Mining for Fine-grained Image Classification

Jian Zhang, Qi Zou, Runsheng Zhang, Yaping Huang

arxiv:1902.09941 v2 · 2019-02-26 · 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{RHACOX2KICTAUSLFZRU3KLHY5S}

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	2026-07-05T04:10:20.498769Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

89c0275f4a40a60a4965cc69b52cf8ec942dde29fb8fe4f71be615211cb69260

Aliases

arxiv: 1902.09941 · arxiv_version: 1902.09941v2 · doi: 10.48550/arxiv.1902.09941 · pith_short_12: RHACOX2KICTA · pith_short_16: RHACOX2KICTAUSLF · pith_short_8: RHACOX2K

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/RHACOX2KICTAUSLFZRU3KLHY5S \
  | 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: 89c0275f4a40a60a4965cc69b52cf8ec942dde29fb8fe4f71be615211cb69260

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a721de8c0f0f55ad639303792123cb352f9a236b7856ea30b1f9911669719344",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2019-02-26T14:04:58Z",
    "title_canon_sha256": "8b829afcd84b4243f96ea7dcf0406134b95bd2c152e1769cd342ebc512213331"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1902.09941",
    "kind": "arxiv",
    "version": 2
  }
}