Pith Number

pith:WLZH5NPU

pith:2026:WLZH5NPUPOLNKEVDFU35B2DPRE

not attested not anchored not stored refs pending

Self-avoiding polygons on a three-row square-lattice strip

Michael von Thaden

arxiv:2607.27397 v1 · 2026-07-29 · math.CO · math-ph · math.MP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{WLZH5NPUPOLNKEVDFU35B2DPRE}

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	2026-07-31T00:11:40.689675Z
Builder	pith-number-builder-2026-05-17-v1
Signature	unsigned_v0
Schema	pith-number/v1.0

Canonical hash

b2f27eb5f47b96d512a32d37d0e86f892e0a2d03397f25b99a5be704f0e37156

Aliases

arxiv: 2607.27397 · arxiv_version: 2607.27397v1 · doi: 10.48550/arxiv.2607.27397 · pith_short_12: WLZH5NPUPOLN · pith_short_16: WLZH5NPUPOLNKEVD · pith_short_8: WLZH5NPU

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/WLZH5NPUPOLNKEVDFU35B2DPRE \
  | 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: b2f27eb5f47b96d512a32d37d0e86f892e0a2d03397f25b99a5be704f0e37156

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3e1723a2a43f0bcced401c662f243b145b62c5189a0a8c177e5a23279cf4a3cb",
    "cross_cats_sorted": [
      "math-ph",
      "math.MP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2026-07-29T19:10:42Z",
    "title_canon_sha256": "47fb48d30160c1df5716f3956d025641abb8bb2885842bc007127dd3e2eac7a9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2607.27397",
    "kind": "arxiv",
    "version": 1
  }
}