Pith Number

pith:UNEPVTLB

pith:2011:UNEPVTLBKBDYA3WKVAZUXTIUVF

not attested not anchored not stored refs pending

Monomer-dimer tatami tilings of square regions

Alejandro Erickson, Mark Schurch

arxiv:1110.5103 v1 · 2011-10-24 · math.CO · cs.DM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{UNEPVTLBKBDYA3WKVAZUXTIUVF}

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	2026-05-18T04:10:24.703871Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a348facd615047806ecaa8334bcd14a9617ea6e41b7cf15511cc2979152744c6

Aliases

arxiv: 1110.5103 · arxiv_version: 1110.5103v1 · doi: 10.48550/arxiv.1110.5103 · pith_short_12: UNEPVTLBKBDY · pith_short_16: UNEPVTLBKBDYA3WK · pith_short_8: UNEPVTLB

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/UNEPVTLBKBDYA3WKVAZUXTIUVF \
  | 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: a348facd615047806ecaa8334bcd14a9617ea6e41b7cf15511cc2979152744c6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "59a67a593c1f9e21db76d8412b0362475fa51f6f559ce2fd0f83e3ca27b48bc1",
    "cross_cats_sorted": [
      "cs.DM"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2011-10-24T00:51:03Z",
    "title_canon_sha256": "bab074e88ebaa79739999f3ba5601793163c11192aa6c25f51abb46dc803d40d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1110.5103",
    "kind": "arxiv",
    "version": 1
  }
}