Pith Number

pith:73YSQQAP

pith:2018:73YSQQAPD25DPLDI5QCV4K5GUI

not attested not anchored not stored refs pending

Rainbow matchings in properly-colored hypergraphs

Guanghui Wang, Hao Huang, Tong Li

arxiv:1808.04954 v1 · 2018-08-15 · 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{73YSQQAPD25DPLDI5QCV4K5GUI}

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	2026-05-18T00:08:02.064225Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fef128400f1eba37ac68ec055e2ba6a219f4dc1b94c50340dc45d5ad1cd0ab7a

Aliases

arxiv: 1808.04954 · arxiv_version: 1808.04954v1 · doi: 10.48550/arxiv.1808.04954 · pith_short_12: 73YSQQAPD25D · pith_short_16: 73YSQQAPD25DPLDI · pith_short_8: 73YSQQAP

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/73YSQQAPD25DPLDI5QCV4K5GUI \
  | 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: fef128400f1eba37ac68ec055e2ba6a219f4dc1b94c50340dc45d5ad1cd0ab7a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "14aa62697498bb61dfaad940f657b2677780b224d8b5f89a52762c76d813548f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2018-08-15T03:13:17Z",
    "title_canon_sha256": "42f04966f6d3541acca7e66e1209e0745b8cb42e27d034490aa38acc031170bf"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1808.04954",
    "kind": "arxiv",
    "version": 1
  }
}