Pith Number

pith:XX4CCKRG

pith:2015:XX4CCKRGRF23N2XWUB7MBUTZYK

not attested not anchored not stored refs pending

On Ryser's Conjecture for Linear Intersecting Multipartite Hypergraphs

Brendan D. McKay, Ian M. Wanless, Nevena Franceti\'c, Sarada Herke

arxiv:1508.00951 v3 · 2015-08-05 · 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{XX4CCKRGRF23N2XWUB7MBUTZYK}

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	2026-05-18T00:58:35.202402Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bdf8212a268975b6eaf6a07ec0d279c289b0623492d18a0928c5073ac7000fdf

Aliases

arxiv: 1508.00951 · arxiv_version: 1508.00951v3 · doi: 10.48550/arxiv.1508.00951 · pith_short_12: XX4CCKRGRF23 · pith_short_16: XX4CCKRGRF23N2XW · pith_short_8: XX4CCKRG

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/XX4CCKRGRF23N2XWUB7MBUTZYK \
  | 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: bdf8212a268975b6eaf6a07ec0d279c289b0623492d18a0928c5073ac7000fdf

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6ec22a321a7c85dc6d02ec7b7d10127146c74437021ab7ec5cf0dd7d93f6423c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2015-08-05T01:42:45Z",
    "title_canon_sha256": "f368e0890be49b9d50c551bc281069d57583339318d6afbaafee33cfcbe8ab8a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1508.00951",
    "kind": "arxiv",
    "version": 3
  }
}