Pith Number

pith:373F4LET

pith:2026:373F4LET233HOGPRTUYJGEO6HF

not attested not anchored not stored refs pending

PCFootprint: A Large-Scale Dataset and Benchmark for Vectorized Building Footprint Extraction from Aerial LiDAR Point Clouds

Haoyuan Shen, Kuihao Wang, Ruisheng Wang, Yujun Liu

arxiv:2606.20455 v1 · 2026-06-18 · 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{373F4LET233HOGPRTUYJGEO6HF}

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	2026-06-19T16:13:12.819794Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

dff65e2c93d6f67719f19d309311de396161a0e9759719139025cbc627b34bcb

Aliases

arxiv: 2606.20455 · arxiv_version: 2606.20455v1 · doi: 10.48550/arxiv.2606.20455 · pith_short_12: 373F4LET233H · pith_short_16: 373F4LET233HOGPR · pith_short_8: 373F4LET

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/373F4LET233HOGPRTUYJGEO6HF \
  | 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: dff65e2c93d6f67719f19d309311de396161a0e9759719139025cbc627b34bcb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f07e05117aa97fb2cf4bc35de9d6f771ff3224f7eb6eaecdd18ffcf1ddd699f8",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2026-06-18T16:38:35Z",
    "title_canon_sha256": "f0f4df895a5c9a55d450325d2ed72e90def51e270b0eada234449f3804cc8b88"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2606.20455",
    "kind": "arxiv",
    "version": 1
  }
}