Pith Number

pith:B7BXIWNF

pith:2019:B7BXIWNFXC5UBMG43RMOU6UM3Z

not attested not anchored not stored refs pending

Tiling Enumeration of Hexagons with Off-central Holes

Tri Lai

arxiv:1905.07119 v1 · 2019-05-17 · 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{B7BXIWNFXC5UBMG43RMOU6UM3Z}

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	2026-05-17T23:45:57.259390Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0fc37459a5b8bb40b0dcdc58ea7a8cde46630b018ce62733ef0559e31cf7d85f

Aliases

arxiv: 1905.07119 · arxiv_version: 1905.07119v1 · doi: 10.48550/arxiv.1905.07119 · pith_short_12: B7BXIWNFXC5U · pith_short_16: B7BXIWNFXC5UBMG4 · pith_short_8: B7BXIWNF

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/B7BXIWNFXC5UBMG43RMOU6UM3Z \
  | 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: 0fc37459a5b8bb40b0dcdc58ea7a8cde46630b018ce62733ef0559e31cf7d85f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "07a78af4df34aa9efa5af0ded30c59f68d35a90dd0bbcecec0eede9635b8e493",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2019-05-17T05:53:53Z",
    "title_canon_sha256": "3de22e41ef3e0e0c00fa02e9e1d56c783b032b44ba0de5528628023d66cfd26c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1905.07119",
    "kind": "arxiv",
    "version": 1
  }
}