Pith Number

pith:B53L6UDL

pith:2019:B53L6UDLDFPEPX4LP4G7QAZKX2

not attested not anchored not stored refs pending

Skeletonisation Algorithms with Theoretical Guarantees for Unorganised Point Clouds with High Levels of Noise

Philip Smith, Vitaliy Kurlin

arxiv:1901.03319 v3 · 2019-01-10 · cs.CG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{B53L6UDLDFPEPX4LP4G7QAZKX2}

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	2026-07-05T02:18:27.267144Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0f76bf506b195e47df8b7f0df8032abeadd21ca1d11ac2fda358f1ddcde78f1b

Aliases

arxiv: 1901.03319 · arxiv_version: 1901.03319v3 · doi: 10.48550/arxiv.1901.03319 · pith_short_12: B53L6UDLDFPE · pith_short_16: B53L6UDLDFPEPX4L · pith_short_8: B53L6UDL

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/B53L6UDLDFPEPX4LP4G7QAZKX2 \
  | 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: 0f76bf506b195e47df8b7f0df8032abeadd21ca1d11ac2fda358f1ddcde78f1b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "41d3fc5cfa32b2c21a83afbb99a01b51788d3b8efb771115acd5678a18c82184",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CG",
    "submitted_at": "2019-01-10T18:52:02Z",
    "title_canon_sha256": "c6b6498dbb8d36cc410b5d22f8a69e009b59594c79ec8ee526e12c21dd0e36fb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1901.03319",
    "kind": "arxiv",
    "version": 3
  }
}