Pith Number

pith:SU3WA4KP

pith:2019:SU3WA4KPJDJR5OTOV63ONZWZS6

not attested not anchored not stored refs pending

The Number of Convex Polyominoes with Given Height and Width

Andr\'e Schulz, G\"unter Rote, Kevin Buchin, Man-Kwun Chiu, Stefan Felsner

arxiv:1903.01095 v1 · 2019-03-04 · 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{SU3WA4KPJDJR5OTOV63ONZWZS6}

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	2026-05-17T23:52:12.331545Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

953760714f48d31eba6eafb6e6e6d997ba3ee508ea8ee559366ed94ac34c5299

Aliases

arxiv: 1903.01095 · arxiv_version: 1903.01095v1 · doi: 10.48550/arxiv.1903.01095 · pith_short_12: SU3WA4KPJDJR · pith_short_16: SU3WA4KPJDJR5OTO · pith_short_8: SU3WA4KP

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/SU3WA4KPJDJR5OTOV63ONZWZS6 \
  | 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: 953760714f48d31eba6eafb6e6e6d997ba3ee508ea8ee559366ed94ac34c5299

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "aaac91af29d4c71deeb839efd20dbabc8c7cad656129ec52d5e71192c3d02143",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2019-03-04T07:07:25Z",
    "title_canon_sha256": "9b639062133fbf3809ced60324b7e973c1bb9bb1218f19e0d599201e750b4f36"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1903.01095",
    "kind": "arxiv",
    "version": 1
  }
}