Pith Number

pith:OOVUMGQQ

pith:2018:OOVUMGQQEP4HBDMYC7RIMW6CYL

not attested not anchored not stored refs pending

Inferring Quality in Point Cloud-based 3D Printed Objects using Topological Data Analysis

Junyi Tu, Les Piegl, Mustafa Hajij, Paul Rosen, Tanvirul Arafin

arxiv:1807.02921 v1 · 2018-07-09 · 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{OOVUMGQQEP4HBDMYC7RIMW6CYL}

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	2026-05-18T00:11:13.348734Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

73ab461a1023f8708d9817e2865bc2c2c8f53792ad990c78759d41f609c4345c

Aliases

arxiv: 1807.02921 · arxiv_version: 1807.02921v1 · doi: 10.48550/arxiv.1807.02921 · pith_short_12: OOVUMGQQEP4H · pith_short_16: OOVUMGQQEP4HBDMY · pith_short_8: OOVUMGQQ

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/OOVUMGQQEP4HBDMYC7RIMW6CYL \
  | 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: 73ab461a1023f8708d9817e2865bc2c2c8f53792ad990c78759d41f609c4345c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "144a1bcbcbff4cd7b00798e932fc09d7f87611f2b39f024554d738298f8a992e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.GR",
    "submitted_at": "2018-07-09T02:52:01Z",
    "title_canon_sha256": "fd9d3d0cab9cbebdf6c0f2a2b0f0d072fb2787a41d141efee66c68e9759b6ca0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1807.02921",
    "kind": "arxiv",
    "version": 1
  }
}