Pith Number

pith:5JILMRC6

pith:2022:5JILMRC6G74XQLT2QPOAUNOGB3

not attested not anchored not stored refs pending

Uniqueness for 2-Intersecting Families of Permutations and Perfect Matchings

Gilad Chase, Nathan Lindzey, Neta Dafni, Yuval Filmus

arxiv:2210.00245 v2 · 2022-10-01 · 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{5JILMRC6G74XQLT2QPOAUNOGB3}

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	2026-06-19T16:09:45.050852Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ea50b6445e37f9782e7a83dc0a35c60ece4f75bcea27feeafa3852cf678014aa

Aliases

arxiv: 2210.00245 · arxiv_version: 2210.00245v2 · doi: 10.48550/arxiv.2210.00245 · pith_short_12: 5JILMRC6G74X · pith_short_16: 5JILMRC6G74XQLT2 · pith_short_8: 5JILMRC6

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/5JILMRC6G74XQLT2QPOAUNOGB3 \
  | 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: ea50b6445e37f9782e7a83dc0a35c60ece4f75bcea27feeafa3852cf678014aa

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b9f083aca2ca30d8451e49d289bf1d9918d1d503aebfcdfc63154298c7fcb741",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2022-10-01T10:38:56Z",
    "title_canon_sha256": "4032c1634b740046e9c5c23cc49450e29d72a5e83bc698cce6de62e4becbac21"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2210.00245",
    "kind": "arxiv",
    "version": 2
  }
}