Pith Number

pith:REU6CDFP

pith:2011:REU6CDFPPAZHGRLUTFGC27DDZ2

not attested not anchored not stored refs pending

The Stretch Factor of the Delaunay Triangulation Is Less Than 1.998

Ge Xia

arxiv:1103.4361 v2 · 2011-03-22 · 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{REU6CDFPPAZHGRLUTFGC27DDZ2}

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	2026-05-18T03:14:41.223402Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8929e10caf7832734574994c2d7c63ce8da7a90dbd2d255fd0cf817ff4d48acc

Aliases

arxiv: 1103.4361 · arxiv_version: 1103.4361v2 · doi: 10.48550/arxiv.1103.4361 · pith_short_12: REU6CDFPPAZH · pith_short_16: REU6CDFPPAZHGRLU · pith_short_8: REU6CDFP

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/REU6CDFPPAZHGRLUTFGC27DDZ2 \
  | 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: 8929e10caf7832734574994c2d7c63ce8da7a90dbd2d255fd0cf817ff4d48acc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "93a3e3be7c79a9dab3a5fee26d3a9dcc9ffce52316988ef7e004dd7ea494f01b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CG",
    "submitted_at": "2011-03-22T19:52:15Z",
    "title_canon_sha256": "8c494d72726e5a2bfdb1601407952e1a4e5a1f5d05d63b916d48667008b9cc2e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1103.4361",
    "kind": "arxiv",
    "version": 2
  }
}