Pith Number

pith:LB7OA4HI

pith:2019:LB7OA4HIAUS72REE6PZRHY6PUT

not attested not anchored not stored refs pending

Extremal problems for convex geometric hypergraphs and ordered hypergraphs

Alexandr Kostochka, Dhruv Mubayi, Jacques Verstra\"ete, Tao Jiang, Zolt\'an F\" uredi

arxiv:1906.04575 v1 · 2019-06-08 · math.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{LB7OA4HIAUS72REE6PZRHY6PUT}

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	2026-05-17T23:43:38.860643Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

587ee070e80525fd4484f3f313e3cfa4c709bc177a53fda7bf251f8dbc9cdf1f

Aliases

arxiv: 1906.04575 · arxiv_version: 1906.04575v1 · doi: 10.48550/arxiv.1906.04575 · pith_short_12: LB7OA4HIAUS7 · pith_short_16: LB7OA4HIAUS72REE · pith_short_8: LB7OA4HI

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/LB7OA4HIAUS72REE6PZRHY6PUT \
  | 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: 587ee070e80525fd4484f3f313e3cfa4c709bc177a53fda7bf251f8dbc9cdf1f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2364eac8ba74d4a00617f59f3d8625564a9e5460604c126c80c5f857aae1c5af",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2019-06-08T15:55:44Z",
    "title_canon_sha256": "e672f47fdc65b9da0eecf5e41d7c4433bb2e1f7962d94da223aa482981c1e40a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1906.04575",
    "kind": "arxiv",
    "version": 1
  }
}