Pith Number

pith:BSPV7J4W

pith:2005:BSPV7J4WHHHXMCUUXWC2VEM46U

not attested not anchored not stored refs pending

Data Structures for Halfplane Proximity Queries and Incremental Voronoi Diagrams

Boris Aronov, Erik D. Demaine, Joachim Gudmundsson, John Iacono, Michiel Smid, Prosenjit Bose, Stefan Langerman

arxiv:cs/0512091 v3 · 2005-12-23 · 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{BSPV7J4WHHHXMCUUXWC2VEM46U}

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	2026-05-18T00:32:55.994294Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0c9f5fa79639cf760a94bd85aa919cf51519f3c64353ddadec237215dc5b2a9f

Aliases

arxiv: cs/0512091 · arxiv_version: cs/0512091v3 · doi: 10.48550/arxiv.cs/0512091 · pith_short_12: BSPV7J4WHHHX · pith_short_16: BSPV7J4WHHHXMCUU · pith_short_8: BSPV7J4W

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/BSPV7J4WHHHXMCUUXWC2VEM46U \
  | 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: 0c9f5fa79639cf760a94bd85aa919cf51519f3c64353ddadec237215dc5b2a9f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8da4b2d1c162a10c7bd1069398b97cae755c85192af598c6edee1c8ec3a5605c",
    "cross_cats_sorted": [
      "cs.DS"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CG",
    "submitted_at": "2005-12-23T04:28:12Z",
    "title_canon_sha256": "d4337bce30d4882b9df24d1f3c9ee91384bf1a3ac6a3cb1e8815d026f7c98465"
  },
  "schema_version": "1.0",
  "source": {
    "id": "cs/0512091",
    "kind": "arxiv",
    "version": 3
  }
}