Pith Number

pith:WWIQYGVY

pith:2019:WWIQYGVYYL7AONGCUH3U74LEVY

not attested not anchored not stored refs pending

Maximum Rectilinear Crossing Number of Uniform Hypergraphs

Ayan, Rahul Gangopadhyay

arxiv:1908.04654 v6 · 2019-08-13 · 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{WWIQYGVYYL7AONGCUH3U74LEVY}

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	2026-07-05T06:52:17.883922Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b5910c1ab8c2fe0734c2a1f74ff164ae1393406b85025ba2a2172ec5e236346d

Aliases

arxiv: 1908.04654 · arxiv_version: 1908.04654v6 · doi: 10.48550/arxiv.1908.04654 · pith_short_12: WWIQYGVYYL7A · pith_short_16: WWIQYGVYYL7AONGC · pith_short_8: WWIQYGVY

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/WWIQYGVYYL7AONGCUH3U74LEVY \
  | 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: b5910c1ab8c2fe0734c2a1f74ff164ae1393406b85025ba2a2172ec5e236346d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "223d8d52f4a6f827ddee77dd1d9ab42f8ac50b05638a6671f0f2d4dbed537973",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2019-08-13T14:18:24Z",
    "title_canon_sha256": "a8032b63c0b3983570ea511d194823abae0e033fb9ec14ebc3d2cf2c27f0db07"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1908.04654",
    "kind": "arxiv",
    "version": 6
  }
}