Pith Number

pith:2XFPZGK5

pith:2022:2XFPZGK5Y3Z6FQ5IOGQ52JWTV4

not attested not anchored not stored refs pending

The Deformation Space of Delaunay Triangulations of the Sphere

Tianqi Wu, Xiaoping Zhu, Yanwen Luo

arxiv:2202.06402 v1 · 2022-02-13 · math.GT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{2XFPZGK5Y3Z6FQ5IOGQ52JWTV4}

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	2026-07-05T06:15:12.053176Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d5cafc995dc6f3e2c3a871a1dd26d3af15e8045ef803bafa0aa0346617302de3

Aliases

arxiv: 2202.06402 · arxiv_version: 2202.06402v1 · doi: 10.48550/arxiv.2202.06402 · pith_short_12: 2XFPZGK5Y3Z6 · pith_short_16: 2XFPZGK5Y3Z6FQ5I · pith_short_8: 2XFPZGK5

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/2XFPZGK5Y3Z6FQ5IOGQ52JWTV4 \
  | 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: d5cafc995dc6f3e2c3a871a1dd26d3af15e8045ef803bafa0aa0346617302de3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0347dbf2dc1334453bbc0179606127c9d81558732533dad03ad956beea56c652",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "math.GT",
    "submitted_at": "2022-02-13T20:47:23Z",
    "title_canon_sha256": "c2d0feaf83d3fe319acb82f2011a8f0337528f4fa2e02ce7a0e4cd8ff4a3fe85"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2202.06402",
    "kind": "arxiv",
    "version": 1
  }
}