Pith Number

pith:HCJ75FSY

pith:2018:HCJ75FSYQ5DFVLFVBZRAHRMXAX

not attested not anchored not stored refs pending

Canonical and Compact Point Cloud Representation for Shape Classification

Ikuro Sato, Kent Fujiwara, Mitsuru Ambai, Yoshiaki Sakakura, Yuichi Yoshida

arxiv:1809.04820 v1 · 2018-09-13 · 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{HCJ75FSYQ5DFVLFVBZRAHRMXAX}

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	2026-05-18T00:05:49.539271Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3893fe965887465aacb50e6203c59705e6bbd4630e5e6849a8dce7792d8978b9

Aliases

arxiv: 1809.04820 · arxiv_version: 1809.04820v1 · doi: 10.48550/arxiv.1809.04820 · pith_short_12: HCJ75FSYQ5DF · pith_short_16: HCJ75FSYQ5DFVLFV · pith_short_8: HCJ75FSY

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/HCJ75FSYQ5DFVLFVBZRAHRMXAX \
  | 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: 3893fe965887465aacb50e6203c59705e6bbd4630e5e6849a8dce7792d8978b9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9af21b7b0c9d912270fdf7736e9fe0a72f06193a9b54b5a180c6ad07c491f7f7",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2018-09-13T08:11:18Z",
    "title_canon_sha256": "e3ffbe3421ac118abb72c25c4dbc8fe59e2e27beed4b8957d8f70c75962f4939"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1809.04820",
    "kind": "arxiv",
    "version": 1
  }
}