Pith Number

pith:E3BY2IEQ

pith:2014:E3BY2IEQ3OAHFS37TYVPVF232H

not attested not anchored not stored refs pending

Homothetic Polygons and Beyond: Intersection Graphs, Recognition, and Maximum Clique

Jan Kratochv\'il, Joshua Terhaar, Konstanty Junosza-Szaniawski, Martin Pergel, Matthew Szczepankiewicz, Pawe{\l} Rz\k{a}\.zewski, Sean Kafer, Valentin E. Brimkov

arxiv:1411.2928 v2 · 2014-11-11 · cs.DM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{E3BY2IEQ3OAHFS37TYVPVF232H}

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	2026-05-18T00:59:27.933202Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

26c38d2090db8072cb7f9e2afa975bd1e2d9e13422748dbda3db1dc769f1716d

Aliases

arxiv: 1411.2928 · arxiv_version: 1411.2928v2 · doi: 10.48550/arxiv.1411.2928 · pith_short_12: E3BY2IEQ3OAH · pith_short_16: E3BY2IEQ3OAHFS37 · pith_short_8: E3BY2IEQ

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/E3BY2IEQ3OAHFS37TYVPVF232H \
  | 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: 26c38d2090db8072cb7f9e2afa975bd1e2d9e13422748dbda3db1dc769f1716d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cfca0f5b1029198cb6ba3f8ea046d8f4cc494ce27c5557030108ead1685b745a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DM",
    "submitted_at": "2014-11-11T19:14:19Z",
    "title_canon_sha256": "0a5a69460f366df7c5f5383ebb202b140691a43e2377d2fc0609ae482fdc6ca6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1411.2928",
    "kind": "arxiv",
    "version": 2
  }
}