Pith Number

pith:QYO3XF56

pith:2013:QYO3XF56HJCNLF5PJYPXK4JF5M

not attested not anchored not stored refs pending

From 3D Point Clouds To Semantic Objects An Ontology-Based Detection Approach

Christophe Cruz (Le2i), Christophe Nicolle (Le2i), Frank Boochs (i3mainz), Helmi Ben Hmida (i3mainz)

arxiv:1301.4783 v1 · 2013-01-21 · cs.CG · cs.AI

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QYO3XF56HJCNLF5PJYPXK4JF5M}

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	2026-05-18T03:35:55.639161Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

861dbb97be3a44d597af4e1f757125eb1298565fcfb60f6a47c98b74326c47d3

Aliases

arxiv: 1301.4783 · arxiv_version: 1301.4783v1 · doi: 10.48550/arxiv.1301.4783 · pith_short_12: QYO3XF56HJCN · pith_short_16: QYO3XF56HJCNLF5P · pith_short_8: QYO3XF56

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/QYO3XF56HJCNLF5PJYPXK4JF5M \
  | 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: 861dbb97be3a44d597af4e1f757125eb1298565fcfb60f6a47c98b74326c47d3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a748a99a30c8907087f4067ca1faba883bbebc30e34fbed83b0784b444f63ad1",
    "cross_cats_sorted": [
      "cs.AI"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CG",
    "submitted_at": "2013-01-21T08:16:53Z",
    "title_canon_sha256": "3b8171c1c60d01eb58678138946fc34653a74e7ac534d74039ce0aef2567903f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1301.4783",
    "kind": "arxiv",
    "version": 1
  }
}