Pith Number

pith:A4G5UBJN

pith:2021:A4G5UBJNFS6YUKOTYPGOLJ74GW

not attested not anchored not stored refs pending

Fit4CAD: A point cloud benchmark for fitting simple geometric primitives in CAD objects

Andrea Raffo, Bianca Falcidieno, Chiara Romanengo, Nabil Anwer, Yifan Qie

arxiv:2105.06858 v3 · 2021-05-14 · cs.GR · 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{A4G5UBJNFS6YUKOTYPGOLJ74GW}

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	2026-07-05T06:39:28.580094Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

070dda052d2cbd8a29d3c3cce5a7fc35981e607b9816debd91f52da244541ff8

Aliases

arxiv: 2105.06858 · arxiv_version: 2105.06858v3 · doi: 10.48550/arxiv.2105.06858 · pith_short_12: A4G5UBJNFS6Y · pith_short_16: A4G5UBJNFS6YUKOT · pith_short_8: A4G5UBJN

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/A4G5UBJNFS6YUKOTYPGOLJ74GW \
  | 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: 070dda052d2cbd8a29d3c3cce5a7fc35981e607b9816debd91f52da244541ff8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "38424efcf6f6e84a883d0c555fdfc6a7bf497cee201b8a576bf57989e7dbe56e",
    "cross_cats_sorted": [
      "cs.CV"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.GR",
    "submitted_at": "2021-05-14T14:32:08Z",
    "title_canon_sha256": "a81c3584513ccfd1d6dc69639edec849b139ef7908b3e096e8d6f514766eda68"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2105.06858",
    "kind": "arxiv",
    "version": 3
  }
}