Pith Number

pith:OSIFD3YN

pith:2011:OSIFD3YNCJYLCQEXQBJMOJJPNA

not attested not anchored not stored refs pending

Coloring Planar Homothets and Three-Dimensional Hypergraphs

Jean Cardinal, Matias Korman

arxiv:1101.0565 v8 · 2011-01-03 · 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{OSIFD3YNCJYLCQEXQBJMOJJPNA}

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	2026-05-18T02:23:05.695609Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

749051ef0d1270b140978052c7252f68268719ce3c1d5a0ee6baa591ac219b8d

Aliases

arxiv: 1101.0565 · arxiv_version: 1101.0565v8 · doi: 10.48550/arxiv.1101.0565 · pith_short_12: OSIFD3YNCJYL · pith_short_16: OSIFD3YNCJYLCQEX · pith_short_8: OSIFD3YN

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/OSIFD3YNCJYLCQEXQBJMOJJPNA \
  | 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: 749051ef0d1270b140978052c7252f68268719ce3c1d5a0ee6baa591ac219b8d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d924b2564e1f5696b56a4e24e225797ad920de9f219739fa40c95cd42c6f3b32",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CG",
    "submitted_at": "2011-01-03T17:06:52Z",
    "title_canon_sha256": "a0ea057b72fa6167893debb3cc56721bca2b52d47983c9494b7bedbbdfe8c59e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1101.0565",
    "kind": "arxiv",
    "version": 8
  }
}