Pith Number

pith:YK2ZWZJF

pith:2018:YK2ZWZJFGPKWPOZFFAAH75TNWE

not attested not anchored not stored refs pending

Using Block Designs in Crossing Number Bounds

Arran Hamm, Eva Czabarka, Garner Cochran, Gregory Clark, Gwen Spencer, John Asplund, Laszlo Szekely, Libby Taylor, Zhiyu Wang

arxiv:1807.03430 v1 · 2018-07-10 · 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{YK2ZWZJFGPKWPOZFFAAH75TNWE}

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.

Cited by

1 paper in Pith

Some remarks on the midrange crossing constant

Receipt and verification

First computed	2026-05-18T00:11:10.459018Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c2b59b652533d567bb2528007ff66db11d400ab54466cee38f6aa00c243c8edf

Aliases

arxiv: 1807.03430 · arxiv_version: 1807.03430v1 · doi: 10.48550/arxiv.1807.03430 · pith_short_12: YK2ZWZJFGPKW · pith_short_16: YK2ZWZJFGPKWPOZF · pith_short_8: YK2ZWZJF

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/YK2ZWZJFGPKWPOZFFAAH75TNWE \
  | 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: c2b59b652533d567bb2528007ff66db11d400ab54466cee38f6aa00c243c8edf

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ae9f75ab2ccdf59822101b42cf771d3ec119c7fc33b9274ede5887c81bc5ffe5",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2018-07-10T00:41:13Z",
    "title_canon_sha256": "1d283cb5cfdc3ddc58550dc130cdd633cc34c968101b111284ae75e5b7de9862"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1807.03430",
    "kind": "arxiv",
    "version": 1
  }
}