Pith Number

pith:XHWJJ7NV

pith:2017:XHWJJ7NVQDEBHYFIVQ4RDKFOQH

not attested not anchored not stored refs pending

Coloring intersection hypergraphs of pseudo-disks

Bal\'azs Keszegh

arxiv:1711.05473 v2 · 2017-11-15 · math.CO · 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{XHWJJ7NVQDEBHYFIVQ4RDKFOQH}

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	2026-05-18T00:05:32.495707Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b9ec94fdb580c813e0a8ac3911a8ae81d9556ce5a9f72814992988b2b7e48f2d

Aliases

arxiv: 1711.05473 · arxiv_version: 1711.05473v2 · doi: 10.48550/arxiv.1711.05473 · pith_short_12: XHWJJ7NVQDEB · pith_short_16: XHWJJ7NVQDEBHYFI · pith_short_8: XHWJJ7NV

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/XHWJJ7NVQDEBHYFIVQ4RDKFOQH \
  | 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: b9ec94fdb580c813e0a8ac3911a8ae81d9556ce5a9f72814992988b2b7e48f2d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f23c5eb1540b5c092d602aca1d1a8aee738b3233767e84890a2a48bee77469de",
    "cross_cats_sorted": [
      "cs.CG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2017-11-15T09:38:30Z",
    "title_canon_sha256": "fbd202b0c69ff7c8c79e0bc941006cce8de945121fa69a4517f8335217754dfd"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1711.05473",
    "kind": "arxiv",
    "version": 2
  }
}