Pith Number

pith:UL3WUQ4F

pith:2014:UL3WUQ4FEMJ6GENMWB2DLQMHCP

not attested not anchored not stored refs pending

Tiling rectangles with holey polyominoes

Dmitry Kamenetsky, Tristrom Cooke

arxiv:1411.2699 v2 · 2014-11-11 · cs.CG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{UL3WUQ4FEMJ6GENMWB2DLQMHCP}

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	2026-05-18T01:28:39.041918Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a2f76a43852313e311acb07435c18713c70064886cd03e29e68a6da1a6f84ba1

Aliases

arxiv: 1411.2699 · arxiv_version: 1411.2699v2 · doi: 10.48550/arxiv.1411.2699 · pith_short_12: UL3WUQ4FEMJ6 · pith_short_16: UL3WUQ4FEMJ6GENM · pith_short_8: UL3WUQ4F

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/UL3WUQ4FEMJ6GENMWB2DLQMHCP \
  | 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: a2f76a43852313e311acb07435c18713c70064886cd03e29e68a6da1a6f84ba1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "41f90732b657ecf9fe5f87cff81472c0501644d4865a6963c86cbb1f901a131e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CG",
    "submitted_at": "2014-11-11T04:52:32Z",
    "title_canon_sha256": "8e89945eaed4c5b0ac127de0928ae4cf539a678b7060fdeb97e2d8c7a8b3bc00"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1411.2699",
    "kind": "arxiv",
    "version": 2
  }
}