Pith Number

pith:SZISULC2

pith:2011:SZISULC27V3IUQWFFG4ILFWSVF

not attested not anchored not stored refs pending

Determinants and Perfect Matchings

Arvind Ayyer

arxiv:1106.1465 v2 · 2011-06-07 · math.CO · cs.DM · math.RA · math.RT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{SZISULC27V3IUQWFFG4ILFWSVF}

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	2026-05-18T03:46:49.354334Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

96512a2c5afd768a42c529b88596d2a9611e83ed839f813455a8a762a3333cfd

Aliases

arxiv: 1106.1465 · arxiv_version: 1106.1465v2 · doi: 10.48550/arxiv.1106.1465 · pith_short_12: SZISULC27V3I · pith_short_16: SZISULC27V3IUQWF · pith_short_8: SZISULC2

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/SZISULC27V3IUQWFFG4ILFWSVF \
  | 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: 96512a2c5afd768a42c529b88596d2a9611e83ed839f813455a8a762a3333cfd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1389ed8d5c60c626847771d2415546413619beef82302f9acd29aa489642c940",
    "cross_cats_sorted": [
      "cs.DM",
      "math.RA",
      "math.RT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2011-06-07T21:40:43Z",
    "title_canon_sha256": "2bb7e1c6074c7892b9a3f168a1a66402f87f15067f4ce4e03166e4b6453ce27d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1106.1465",
    "kind": "arxiv",
    "version": 2
  }
}