Pith Number

pith:ZWUGWGCP

pith:2013:ZWUGWGCPJLFDLEEMYZXC6KJC7E

not attested not anchored not stored refs pending

On topological changes in the Delaunay triangulation of moving points

Natan Rubin

arxiv:1304.3671 v1 · 2013-04-12 · 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{ZWUGWGCPJLFDLEEMYZXC6KJC7E}

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	2026-05-18T03:28:06.882522Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cda86b184f4aca35908cc66e2f2922f91df6f4d00fcfef7a871d0ed375c7fff1

Aliases

arxiv: 1304.3671 · arxiv_version: 1304.3671v1 · doi: 10.48550/arxiv.1304.3671 · pith_short_12: ZWUGWGCPJLFD · pith_short_16: ZWUGWGCPJLFDLEEM · pith_short_8: ZWUGWGCP

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/ZWUGWGCPJLFDLEEMYZXC6KJC7E \
  | 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: cda86b184f4aca35908cc66e2f2922f91df6f4d00fcfef7a871d0ed375c7fff1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5e2661cec168c1cbd4f21e1982a839dc454bdade6b8c63878beaa5d4871ff2d2",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CG",
    "submitted_at": "2013-04-12T16:22:08Z",
    "title_canon_sha256": "89188c49ed322e605cf65222fbfb2c418da925dd1680181e9347a9685e67f88d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1304.3671",
    "kind": "arxiv",
    "version": 1
  }
}