Pith Number

pith:UKOP3R72

pith:2008:UKOP3R72Q44RKUGC7HRN6GY6RN

not attested not anchored not stored refs pending

Geometry of canonical self-similar tilings

Erin P. J. Pearse, Steffen Winter

arxiv:0811.2187 v2 · 2008-11-13 · math.MG · math.DS

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{UKOP3R72Q44RKUGC7HRN6GY6RN}

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	2026-05-18T04:30:26.735793Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a29cfdc7fa87391550c2f9e2df1b1e8b4aab95a25c2429aefb6984a61b0c4340

Aliases

arxiv: 0811.2187 · arxiv_version: 0811.2187v2 · doi: 10.48550/arxiv.0811.2187 · pith_short_12: UKOP3R72Q44R · pith_short_16: UKOP3R72Q44RKUGC · pith_short_8: UKOP3R72

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/UKOP3R72Q44RKUGC7HRN6GY6RN \
  | 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: a29cfdc7fa87391550c2f9e2df1b1e8b4aab95a25c2429aefb6984a61b0c4340

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e6948686015c31863de4cabd20e00387be966a8bcbf4e5564ae81006d2b4e4e3",
    "cross_cats_sorted": [
      "math.DS"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.MG",
    "submitted_at": "2008-11-13T18:12:36Z",
    "title_canon_sha256": "5d04c3bd0e48f4dddf09b55e1e7843eb34a75be9869c9ae604d4d9a1f50c5912"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0811.2187",
    "kind": "arxiv",
    "version": 2
  }
}