Pith Number

pith:R5UXICE5

pith:2011:R5UXICE54PP2TMFZUEN6V2MGTS

not attested not anchored not stored refs pending

Nonattacking Queens in a Rectangular Strip

Christopher R.H. Hanusa, Seth Chaiken, Thomas Zaslavsky

arxiv:1105.5087 v1 · 2011-05-25 · 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{R5UXICE54PP2TMFZUEN6V2MGTS}

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	2026-05-18T01:02:14.512425Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8f6974089de3dfa9b0b9a11beae9869cb3f40541a3f556b46fbfbbe5da3454ae

Aliases

arxiv: 1105.5087 · arxiv_version: 1105.5087v1 · doi: 10.48550/arxiv.1105.5087 · pith_short_12: R5UXICE54PP2 · pith_short_16: R5UXICE54PP2TMFZ · pith_short_8: R5UXICE5

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/R5UXICE54PP2TMFZUEN6V2MGTS \
  | 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: 8f6974089de3dfa9b0b9a11beae9869cb3f40541a3f556b46fbfbbe5da3454ae

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "74de458f5a624af415c0731434a1c30a5436c493a6aeeea616addd1dddc65bbf",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2011-05-25T16:56:44Z",
    "title_canon_sha256": "6b65f1781ce020f76ffdc6ccd9c4f84ef8f65f5731f2fa377ef06ae5a98ed9c1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1105.5087",
    "kind": "arxiv",
    "version": 1
  }
}