Pith Number

pith:V7WDTFK2

pith:2017:V7WDTFK2KVMAAANLUDTSOYEC6R

not attested not anchored not stored refs pending

Two Optimization Problems for Unit Disks

Lazar Milinkovi\'c, Sergio Cabello

arxiv:1702.03266 v1 · 2017-02-10 · 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{V7WDTFK2KVMAAANLUDTSOYEC6R}

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	2026-05-18T00:50:58.328420Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

afec39955a55580001aba0e7276082f4453d7828eb2c6b21dd74cf371308abaa

Aliases

arxiv: 1702.03266 · arxiv_version: 1702.03266v1 · doi: 10.48550/arxiv.1702.03266 · pith_short_12: V7WDTFK2KVMA · pith_short_16: V7WDTFK2KVMAAANL · pith_short_8: V7WDTFK2

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/V7WDTFK2KVMAAANLUDTSOYEC6R \
  | 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: afec39955a55580001aba0e7276082f4453d7828eb2c6b21dd74cf371308abaa

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "98e57a2e4eb3cf3f5d3d9a8a575f336ec604271ef371b1d8cac6c621933d09cd",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CG",
    "submitted_at": "2017-02-10T17:54:59Z",
    "title_canon_sha256": "120daa4598643d3b84b74c817a3a35a7aad8227df65f369b0a75cdcd7d5f2250"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1702.03266",
    "kind": "arxiv",
    "version": 1
  }
}