Pith Number

pith:TAUOSU4L

pith:2026:TAUOSU4LB7O2YQECJQTXXJRTPQ

not attested not anchored not stored refs pending

HCSU: A Dataset and Benchmark for Fine-Grained Historical Calligraphy Style Understanding

Chen Ye, Yan Liu, Yinsheng Yao

arxiv:2607.04147 v1 · 2026-07-05 · cs.CV · cs.AI

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{TAUOSU4LB7O2YQECJQTXXJRTPQ}

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	2026-07-07T02:18:59.644716Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9828e9538b0fddac40824c277ba6337c033eefadf7fa4bb35804052b050bcdae

Aliases

arxiv: 2607.04147 · arxiv_version: 2607.04147v1 · doi: 10.48550/arxiv.2607.04147 · pith_short_12: TAUOSU4LB7O2 · pith_short_16: TAUOSU4LB7O2YQEC · pith_short_8: TAUOSU4L

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/TAUOSU4LB7O2YQECJQTXXJRTPQ \
  | 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: 9828e9538b0fddac40824c277ba6337c033eefadf7fa4bb35804052b050bcdae

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5c2c18b6362007056a1f0f907924338d2ed66a6e7215e745196987fb2b304e7e",
    "cross_cats_sorted": [
      "cs.AI"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2026-07-05T07:15:17Z",
    "title_canon_sha256": "f8ecc3d8db4ee4c0e391c42049d96c87f484bcd2e7d492a38699bb164da5faf7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2607.04147",
    "kind": "arxiv",
    "version": 1
  }
}