Pith Number

pith:M34PQMV6

pith:2014:M34PQMV6GNPDZZNP4YMJOXZ7IZ

not attested not anchored not stored refs pending

Multipartite hypergraphs achieving equality in Ryser's conjecture

Ian M. Wanless, J\'anos Bar\'at, Ron Aharoni

arxiv:1409.4833 v2 · 2014-09-16 · 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{M34PQMV6GNPDZZNP4YMJOXZ7IZ}

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	2026-05-18T01:23:38.800783Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

66f8f832be335e3ce5afe618975f3f465c2dad9c3c7553e01f8d889a785497a0

Aliases

arxiv: 1409.4833 · arxiv_version: 1409.4833v2 · doi: 10.48550/arxiv.1409.4833 · pith_short_12: M34PQMV6GNPD · pith_short_16: M34PQMV6GNPDZZNP · pith_short_8: M34PQMV6

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/M34PQMV6GNPDZZNP4YMJOXZ7IZ \
  | 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: 66f8f832be335e3ce5afe618975f3f465c2dad9c3c7553e01f8d889a785497a0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "54648a6613bc5291a1f3506faf85cbe2024eac9e2d3448db19f1d527b8307ada",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2014-09-16T23:51:14Z",
    "title_canon_sha256": "b72536633b8907cf9ab998de61f845fe9644604b1f1e8c5ff1dd1222c7f9020a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1409.4833",
    "kind": "arxiv",
    "version": 2
  }
}