Pith Number

pith:GTNFKBLY

pith:2014:GTNFKBLYWM2UTKDLI4DBCD7QGI

not attested not anchored not stored refs pending

Permutation classes and polyomino classes with excluded submatrices

Andrea Frosini, Daniela Battaglino, Mathilde Bouvel, Simone Rinaldi

arxiv:1402.2260 v2 · 2014-02-10 · 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{GTNFKBLYWM2UTKDLI4DBCD7QGI}

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	2026-05-18T01:37:16.248446Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

34da550578b33549a86b4706110ff0320b295b39fbf99f61b0f37232223cb0f7

Aliases

arxiv: 1402.2260 · arxiv_version: 1402.2260v2 · doi: 10.48550/arxiv.1402.2260 · pith_short_12: GTNFKBLYWM2U · pith_short_16: GTNFKBLYWM2UTKDL · pith_short_8: GTNFKBLY

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/GTNFKBLYWM2UTKDLI4DBCD7QGI \
  | 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: 34da550578b33549a86b4706110ff0320b295b39fbf99f61b0f37232223cb0f7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f84338d7fe307431931e2276e1a6ed0a59dd89eae7ffdfda58573a5b8efd270f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2014-02-10T20:34:48Z",
    "title_canon_sha256": "9ead58fb1d81407bafceb9ef020066e12a4ae66c384434fdbd854561a1c29909"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1402.2260",
    "kind": "arxiv",
    "version": 2
  }
}