Pith Number

pith:FF7PDW43

pith:2020:FF7PDW43S2ZRUE54JUTZXCS2YQ

not attested not anchored not stored refs pending

New bounds for Ryser's conjecture and related problems

Alexey Pokrovskiy, Benny Sudakov, Liana Yepremyan, Peter Keevash

arxiv:2005.00526 v2 · 2020-05-01 · 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{FF7PDW43S2ZRUE54JUTZXCS2YQ}

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

Almost every Latin square has a decomposition into transversals

Receipt and verification

First computed	2026-07-05T01:05:27.223021Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

297ef1db9b96b31a13bc4d279b8a5ac41e2bd264b75ab2df9ddde38a2af487b8

Aliases

arxiv: 2005.00526 · arxiv_version: 2005.00526v2 · doi: 10.48550/arxiv.2005.00526 · pith_short_12: FF7PDW43S2ZR · pith_short_16: FF7PDW43S2ZRUE54 · pith_short_8: FF7PDW43

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/FF7PDW43S2ZRUE54JUTZXCS2YQ \
  | 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: 297ef1db9b96b31a13bc4d279b8a5ac41e2bd264b75ab2df9ddde38a2af487b8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a549248b858f635f9c705ac458f5675b4a1604ed009c32cc08b0eb86a6115bc3",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2020-05-01T17:56:33Z",
    "title_canon_sha256": "9f565f2fdc63daf85bcee1f5318831e789677ba6aec2aa0d9120d658e34d058a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2005.00526",
    "kind": "arxiv",
    "version": 2
  }
}