Pith Number

pith:2S4VBKJ2

pith:2014:2S4VBKJ2F5RKZXPS4JCJANINVL

not attested not anchored not stored refs pending

A QPTAS for the Base of the Number of Triangulations of a Planar Point Set

Andrzej Lingas, Dzmitry Sledneu, Marek Karpinski

arxiv:1411.0544 v3 · 2014-11-03 · 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{2S4VBKJ2F5RKZXPS4JCJANINVL}

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	2026-05-18T02:33:24.891727Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d4b950a93a2f62acddf2e24490350daaf4e06d515364bade032dec454dac40e5

Aliases

arxiv: 1411.0544 · arxiv_version: 1411.0544v3 · doi: 10.48550/arxiv.1411.0544 · pith_short_12: 2S4VBKJ2F5RK · pith_short_16: 2S4VBKJ2F5RKZXPS · pith_short_8: 2S4VBKJ2

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/2S4VBKJ2F5RKZXPS4JCJANINVL \
  | 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: d4b950a93a2f62acddf2e24490350daaf4e06d515364bade032dec454dac40e5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cc7926e8db346c4bff635d20b1f9e88c0591d6026df6ae0d4846bacf2772b104",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CG",
    "submitted_at": "2014-11-03T16:14:13Z",
    "title_canon_sha256": "a51974f18789f3e28b0e4540330dc3b8af625d63788758b188af00ea0510aee6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1411.0544",
    "kind": "arxiv",
    "version": 3
  }
}