Pith Number

pith:ULU4NWJK

pith:2026:ULU4NWJKE4G2HTWLA2NHR3WEFG

not attested not anchored not stored refs pending

AI+CAD Data Representation Architecture: From DeepCAD Solid Modeling to WHUCAD Industrial-Grade Parametric Feature Modeling

Fazhi He, Jing Lin, Qingchen Kong, Rubin Fan, Ruibo Wan, Xuecheng Zhang, Yuxin Liu

arxiv:2606.16797 v2 · 2026-06-15 · cs.GR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ULU4NWJKE4G2HTWLA2NHR3WEFG}

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	2026-06-19T16:10:02.185692Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a2e9c6d92a270da3cecb069a78eec42982c083a3b12946cd00d8c6bfb9a6ddd2

Aliases

arxiv: 2606.16797 · arxiv_version: 2606.16797v2 · doi: 10.48550/arxiv.2606.16797 · pith_short_12: ULU4NWJKE4G2 · pith_short_16: ULU4NWJKE4G2HTWL · pith_short_8: ULU4NWJK

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/ULU4NWJKE4G2HTWLA2NHR3WEFG \
  | 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: a2e9c6d92a270da3cecb069a78eec42982c083a3b12946cd00d8c6bfb9a6ddd2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ba0a4d09207c7695446c4a8ad05b4c8f028a85a6fc9f4505b6f00589181c4739",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.GR",
    "submitted_at": "2026-06-15T14:38:46Z",
    "title_canon_sha256": "6d8cfa62f57f1749353bec0f24bb49c8d04f527b3eb189a143e522369dcf9290"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2606.16797",
    "kind": "arxiv",
    "version": 2
  }
}