Pith Number

pith:2HKD35DG

pith:2018:2HKD35DGUTVDU2LITEEVTGGK4Y

not attested not anchored not stored refs pending

The geometry and combinatorics of discrete line segment hypergraphs

Christopher O'Neill, Deborah Oliveros, Shira Zerbib

arxiv:1807.04826 v1 · 2018-07-12 · 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{2HKD35DGUTVDU2LITEEVTGGK4Y}

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	2026-05-18T00:10:49.712548Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d1d43df466a4ea3a696899095998cae626738aa7ba1f188056437e0b4d7fb129

Aliases

arxiv: 1807.04826 · arxiv_version: 1807.04826v1 · doi: 10.48550/arxiv.1807.04826 · pith_short_12: 2HKD35DGUTVD · pith_short_16: 2HKD35DGUTVDU2LI · pith_short_8: 2HKD35DG

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/2HKD35DGUTVDU2LITEEVTGGK4Y \
  | 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: d1d43df466a4ea3a696899095998cae626738aa7ba1f188056437e0b4d7fb129

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "063b8f69161214069db26d99ae1a5f95357da579e8e41bc72582063367150d10",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2018-07-12T21:20:11Z",
    "title_canon_sha256": "ce680b1ae2a5eacf094c9ac4ff89f90c7c06465373fa6136182a4c0f680009af"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1807.04826",
    "kind": "arxiv",
    "version": 1
  }
}