Pith Number

pith:VDBUEXYZ

pith:2026:VDBUEXYZ7G42KEBVZVQXPWUIU6

not attested not anchored not stored refs pending

Snake Polyominoes of Maximal Area in a Rectangle

Alain Goupil (LACIM, Alexandre Blondin Mass\'e (LACIM, Universit\'e du Qu\'ebec \`a Montr\'eal), Universit\'e du Qu\'ebec \`a trois-Rivi\`eres)

arxiv:2606.13155 v1 · 2026-06-11 · 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{VDBUEXYZ7G42KEBVZVQXPWUIU6}

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	2026-06-12T01:09:43.851085Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a8c3425f19f9b9a51035cd6177da88a7af3dfa5ae34985432496a064e1b12f45

Aliases

arxiv: 2606.13155 · arxiv_version: 2606.13155v1 · doi: 10.48550/arxiv.2606.13155 · pith_short_12: VDBUEXYZ7G42 · pith_short_16: VDBUEXYZ7G42KEBV · pith_short_8: VDBUEXYZ

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/VDBUEXYZ7G42KEBVZVQXPWUIU6 \
  | 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: a8c3425f19f9b9a51035cd6177da88a7af3dfa5ae34985432496a064e1b12f45

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0f97c2a00da656397995b8f69344d1217c943e6d0428a1f85d0dbad01ec6a46c",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.DM",
    "submitted_at": "2026-06-11T10:27:17Z",
    "title_canon_sha256": "757a3b28812c3e7b014a5dd7d671ec68f42c1851c3077f19e8a9c14f2023f075"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2606.13155",
    "kind": "arxiv",
    "version": 1
  }
}