Pith Number

pith:UDATZQQS

pith:2011:UDATZQQSOOGPXLEJ7PQSIW2XR5

not attested not anchored not stored refs pending

Large matchings in uniform hypergraphs and the conjectures of Erdos and Samuels

Andrzej Rucinski, Benny Sudakov, Hao Huang, Noga Alon, Peter Frankl, Vojtech Rodl

arxiv:1107.1219 v2 · 2011-07-06 · math.CO · math.PR

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{UDATZQQSOOGPXLEJ7PQSIW2XR5}

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	2026-05-18T04:03:32.310548Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a0c13cc212738cfbac89fbe1245b578f7f3219e6c47cef251a3bcf61734ff52a

Aliases

arxiv: 1107.1219 · arxiv_version: 1107.1219v2 · doi: 10.48550/arxiv.1107.1219 · pith_short_12: UDATZQQSOOGP · pith_short_16: UDATZQQSOOGPXLEJ · pith_short_8: UDATZQQS

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/UDATZQQSOOGPXLEJ7PQSIW2XR5 \
  | 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: a0c13cc212738cfbac89fbe1245b578f7f3219e6c47cef251a3bcf61734ff52a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8464f53a131b9fccfd3844fe90be7ea9be3c86a74b309eb0874721893292e393",
    "cross_cats_sorted": [
      "math.PR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2011-07-06T18:42:32Z",
    "title_canon_sha256": "5b6b91ade966142d14c4a1f94fb297fbcdc7d0efd3f385d56ab48368b04f8cdf"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1107.1219",
    "kind": "arxiv",
    "version": 2
  }
}