Pith Number

pith:UVWZNHQJ

pith:2026:UVWZNHQJSSE6N3D2CO6WQ4TQBY

not attested not anchored not stored refs pending

Automatic Enumeration of Tilings by Polyominoes

Lucy Martinez

arxiv:2607.29369 v1 · 2026-07-31 · 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{UVWZNHQJSSE6N3D2CO6WQ4TQBY}

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	2026-08-03T01:33:21.984392Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a56d969e099489e6ec7a13bd6872700e2154593387345f38645b906ddc72ae93

Aliases

arxiv: 2607.29369 · arxiv_version: 2607.29369v1 · doi: 10.48550/arxiv.2607.29369 · pith_short_12: UVWZNHQJSSE6 · pith_short_16: UVWZNHQJSSE6N3D2 · pith_short_8: UVWZNHQJ

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/UVWZNHQJSSE6N3D2CO6WQ4TQBY \
  | 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: a56d969e099489e6ec7a13bd6872700e2154593387345f38645b906ddc72ae93

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "351403c7253e2d9423727fcffdd12ade0bd44ee986b506fc8f1e50150d0577c9",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2026-07-31T12:52:59Z",
    "title_canon_sha256": "2bdad888e9971702f3c9df635ca7e0198c64d1e3f3884fcab3c3eeb19ce3143a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2607.29369",
    "kind": "arxiv",
    "version": 1
  }
}