Pith Number

pith:CDNG3PTD

pith:2025:CDNG3PTDQ3U5KWRF35JOUWAIMQ

not attested not anchored not stored refs pending

MegaHan97K: A Large-Scale Dataset for Mega-Category Chinese Character Recognition with over 97K Categories

Lianwen Jin, Peirong Zhang, Yixin Zhao, Yongxin Shi, Yuyi Zhang, Zhenhua Yang

arxiv:2506.04807 v1 · 2025-06-05 · 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{CDNG3PTDQ3U5KWRF35JOUWAIMQ}

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	2026-07-05T11:16:37.011675Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

10da6dbe6386e9d55a25df52ea58086417e9f57eebafd2cb6697dad4b819d103

Aliases

arxiv: 2506.04807 · arxiv_version: 2506.04807v1 · doi: 10.48550/arxiv.2506.04807 · pith_short_12: CDNG3PTDQ3U5 · pith_short_16: CDNG3PTDQ3U5KWRF · pith_short_8: CDNG3PTD

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/CDNG3PTDQ3U5KWRF35JOUWAIMQ \
  | 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: 10da6dbe6386e9d55a25df52ea58086417e9f57eebafd2cb6697dad4b819d103

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5fee2b6d898c885fb1cedf0cd0d60fcba88dee4d81085979b5bef822ac445e58",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-nc-nd/4.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2025-06-05T09:33:06Z",
    "title_canon_sha256": "1962f02852effc6f01072a7f5222198600fa6c9ff5f722152e5e5cadbf973efd"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2506.04807",
    "kind": "arxiv",
    "version": 1
  }
}