Pith Number

pith:62CKG4LB

pith:2023:62CKG4LBBJY23HMVS5RYAREXMC

not attested not anchored not stored refs pending

PolyGNN: Polyhedron-based Graph Neural Network for 3D Building Reconstruction from Point Clouds

Liangliang Nan, Xiao Xiang Zhu, Yilei Shi, Zhaiyu Chen, Zhitong Xiong

arxiv:2307.08636 v2 · 2023-07-17 · 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{62CKG4LBBJY23HMVS5RYAREXMC}

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	2026-07-05T09:19:23.897023Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f684a371610a71ad9d95976380449760aed11ecb12a9ee80be946d6895960fdf

Aliases

arxiv: 2307.08636 · arxiv_version: 2307.08636v2 · doi: 10.48550/arxiv.2307.08636 · pith_short_12: 62CKG4LBBJY2 · pith_short_16: 62CKG4LBBJY23HMV · pith_short_8: 62CKG4LB

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/62CKG4LBBJY23HMVS5RYAREXMC \
  | 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: f684a371610a71ad9d95976380449760aed11ecb12a9ee80be946d6895960fdf

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "003acae165d0c14ca6cac64e901c6839f3d534922d8217ac32947941ba1f99ea",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-nc-nd/4.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2023-07-17T16:52:25Z",
    "title_canon_sha256": "22df9933065deeef76a10e546f0601629ddaf43fa4e29a893effafc5fd9cf257"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2307.08636",
    "kind": "arxiv",
    "version": 2
  }
}