Pith Number

pith:FJ4DUVBY

pith:2025:FJ4DUVBYO6CILTHFHE2WCVSWS5

not attested not anchored not stored refs pending

A note on improved bounds for hypergraph rainbow matching problems

Andrea Freschi, Candida Bowtell, Gal Kronenberg, Jun Yan

arxiv:2501.03216 v1 · 2025-01-06 · 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{FJ4DUVBYO6CILTHFHE2WCVSWS5}

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	2026-07-05T09:57:33.309785Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2a783a5438778485cce53935615656975e1e260a111f2e8e0d6e587a0f5a7324

Aliases

arxiv: 2501.03216 · arxiv_version: 2501.03216v1 · doi: 10.48550/arxiv.2501.03216 · pith_short_12: FJ4DUVBYO6CI · pith_short_16: FJ4DUVBYO6CILTHF · pith_short_8: FJ4DUVBY

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/FJ4DUVBYO6CILTHFHE2WCVSWS5 \
  | 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: 2a783a5438778485cce53935615656975e1e260a111f2e8e0d6e587a0f5a7324

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cedae73305033937ab338ab71f5c68cf1866c4f9b22f97bfe334045b474fe297",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2025-01-06T18:54:53Z",
    "title_canon_sha256": "124ac64de9c6b2fd2817afed5ac132a4d70f323aaa60ffa2b72f84ddb5e1dcba"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2501.03216",
    "kind": "arxiv",
    "version": 1
  }
}