Pith Number

pith:AP4IOYPR

pith:2025:AP4IOYPRGA3QQCS5ARER5M2RUL

not attested not anchored not stored refs pending

Training-Free Class Purification for Open-Vocabulary Semantic Segmentation

Jianhuang Lai, Jie Shao, Lingxiao Yang, Nailong Zhao, Qi Chen, Xiaohua Xie, Yun Chen

arxiv:2508.00557 v1 · 2025-08-01 · 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{AP4IOYPRGA3QQCS5ARER5M2RUL}

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	2026-07-05T11:46:57.963824Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

03f88761f13037080a5d04491eb351a2dd888d8cabd5267f5fb95ed58e2c98d1

Aliases

arxiv: 2508.00557 · arxiv_version: 2508.00557v1 · doi: 10.48550/arxiv.2508.00557 · pith_short_12: AP4IOYPRGA3Q · pith_short_16: AP4IOYPRGA3QQCS5 · pith_short_8: AP4IOYPR

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/AP4IOYPRGA3QQCS5ARER5M2RUL \
  | 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: 03f88761f13037080a5d04491eb351a2dd888d8cabd5267f5fb95ed58e2c98d1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "48cd4c626a25733aba20e24ef39d8bd5cced7374dec74e7799a3373073be0e66",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2025-08-01T11:55:12Z",
    "title_canon_sha256": "e240f5fdf273ff07fe7e6b318b2d1a6dbe7a2eb859a2d55ff83be24524b88b50"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2508.00557",
    "kind": "arxiv",
    "version": 1
  }
}