Pith Number

pith:WUDLFQNZ

pith:2025:WUDLFQNZAQN2BLGINSICBRNN5T

not attested not anchored not stored refs pending

Positive codegree thresholds for perfect matchings in hypergraphs

Camila Z\'arate-Guer\'en, Richard Mycroft

arxiv:2505.17981 v1 · 2025-05-23 · 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{WUDLFQNZAQN2BLGINSICBRNN5T}

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	2026-07-05T11:08:34.660837Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b506b2c1b9041ba0acc86c9020c5adecf2714cd99de138a4da228208ccd41527

Aliases

arxiv: 2505.17981 · arxiv_version: 2505.17981v1 · doi: 10.48550/arxiv.2505.17981 · pith_short_12: WUDLFQNZAQN2 · pith_short_16: WUDLFQNZAQN2BLGI · pith_short_8: WUDLFQNZ

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/WUDLFQNZAQN2BLGINSICBRNN5T \
  | 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: b506b2c1b9041ba0acc86c9020c5adecf2714cd99de138a4da228208ccd41527

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "60d795b47f85857d95e541ff29bcb6e8c6138604cdfbde36265bab0c4719fcd8",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2025-05-23T14:47:33Z",
    "title_canon_sha256": "0fee931573ae809a7a05f7e9f73974429c9bd06d798e07be5a57c40f750ed0fa"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2505.17981",
    "kind": "arxiv",
    "version": 1
  }
}