Pith Number

pith:HDWCDTDU

pith:2017:HDWCDTDUKZL6NTQFHSFDUP5W7Z

not attested not anchored not stored refs pending

The Medial Axis of a Multi-Layered Environment and its Application as a Navigation Mesh

Atlas F. Cook IV, Marc J. van Kreveld, Roland Geraerts, Wouter van Toll

arxiv:1701.05141 v2 · 2017-01-18 · cs.CG · cs.DS

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{HDWCDTDUKZL6NTQFHSFDUP5W7Z}

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	2026-05-18T00:39:28.760813Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

38ec21cc745657e6ce053c8a3a3fb6fe4a2bd11b7e0599a3e4837a07ecf8cbb2

Aliases

arxiv: 1701.05141 · arxiv_version: 1701.05141v2 · doi: 10.48550/arxiv.1701.05141 · pith_short_12: HDWCDTDUKZL6 · pith_short_16: HDWCDTDUKZL6NTQF · pith_short_8: HDWCDTDU

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/HDWCDTDUKZL6NTQFHSFDUP5W7Z \
  | 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: 38ec21cc745657e6ce053c8a3a3fb6fe4a2bd11b7e0599a3e4837a07ecf8cbb2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3299c50841ace3b1bffcf3665531db3534c55f0bdf3cd27c9eb509808364148c",
    "cross_cats_sorted": [
      "cs.DS"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CG",
    "submitted_at": "2017-01-18T16:46:08Z",
    "title_canon_sha256": "dd745b2710feb97919023ebb68ab224dddfeac3bdd21d10f87f1ddc17acd7f3b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1701.05141",
    "kind": "arxiv",
    "version": 2
  }
}