Pith Number

pith:UNON5JMB

pith:2019:UNON5JMBGEACHMBFLFDAGGBQKZ

not attested not anchored not stored refs pending

Automatic normal orientation in point clouds of building interiors

Reinhard Klein, Sebastian Ochmann

arxiv:1901.06487 v2 · 2019-01-19 · cs.GR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{UNON5JMBGEACHMBFLFDAGGBQKZ}

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	2026-05-17T23:48:55.038734Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a35cdea581310023b02559460318305667b8718310db8d55bf42df87b7e0b1ea

Aliases

arxiv: 1901.06487 · arxiv_version: 1901.06487v2 · doi: 10.48550/arxiv.1901.06487 · pith_short_12: UNON5JMBGEAC · pith_short_16: UNON5JMBGEACHMBF · pith_short_8: UNON5JMB

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/UNON5JMBGEACHMBFLFDAGGBQKZ \
  | 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: a35cdea581310023b02559460318305667b8718310db8d55bf42df87b7e0b1ea

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "afd7d82457a9dce70cf73456e9486bd8fa7e98fdb0a2789f4faa6e6886fc92ec",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.GR",
    "submitted_at": "2019-01-19T09:21:57Z",
    "title_canon_sha256": "14b4aaf0d1509132f9a50fc0b8c5dca6c3be4ce849ef5dc1b2db433d0842a8c6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1901.06487",
    "kind": "arxiv",
    "version": 2
  }
}