Pith Number

pith:2UNSF663

pith:2025:2UNSF6632VKL5KAUYQHHTTXDXA

not attested not anchored not stored refs pending

Quasilattices of the Spectre monotile

Douglas J. Ballon, Henning U. Voss

arxiv:2502.06926 v2 · 2025-02-10 · physics.gen-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{2UNSF6632VKL5KAUYQHHTTXDXA}

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	2026-07-05T10:13:27.817907Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d51b22fbdbd554bea814c40e79cee3b836dd338bca1b350d3f4c8813f48b73d4

Aliases

arxiv: 2502.06926 · arxiv_version: 2502.06926v2 · doi: 10.48550/arxiv.2502.06926 · pith_short_12: 2UNSF6632VKL · pith_short_16: 2UNSF6632VKL5KAU · pith_short_8: 2UNSF663

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/2UNSF6632VKL5KAUYQHHTTXDXA \
  | 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: d51b22fbdbd554bea814c40e79cee3b836dd338bca1b350d3f4c8813f48b73d4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "52b8b8081437a0f1ae9e869d1692f5f3a8711cd8e66ff9e8adb8ae15b8d79f5e",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-nc-sa/4.0/",
    "primary_cat": "physics.gen-ph",
    "submitted_at": "2025-02-10T18:45:55Z",
    "title_canon_sha256": "441b37895c22d71c5a405467764edcd3f137b8c1591426c2d12d6c29324e17ce"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2502.06926",
    "kind": "arxiv",
    "version": 2
  }
}