Pith Number

pith:FA6WIKVN

pith:2011:FA6WIKVNJ6DXL44M7CBASFVRYQ

not attested not anchored not stored refs pending

On the topological full group of a minimal Cantor Z^2-system

Gabor Elek, Nicolas Monod

arxiv:1201.0257 v2 · 2011-12-31 · math.DS · math.GR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{FA6WIKVNJ6DXL44M7CBASFVRYQ}

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	2026-05-18T03:12:22.674283Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

283d642aad4f8775f38cf8820916b1c426e435d2a0ec925f4e4814f3a2b23b3f

Aliases

arxiv: 1201.0257 · arxiv_version: 1201.0257v2 · doi: 10.48550/arxiv.1201.0257 · pith_short_12: FA6WIKVNJ6DX · pith_short_16: FA6WIKVNJ6DXL44M · pith_short_8: FA6WIKVN

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/FA6WIKVNJ6DXL44M7CBASFVRYQ \
  | 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: 283d642aad4f8775f38cf8820916b1c426e435d2a0ec925f4e4814f3a2b23b3f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "498e10a3c97e91fcaa4a5e27b95afa365a51cb0a45d65679bd851663c7e3c86a",
    "cross_cats_sorted": [
      "math.GR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DS",
    "submitted_at": "2011-12-31T13:27:33Z",
    "title_canon_sha256": "e42d052a2729dda6aab87259527c326344edecd9cef17d9a4c39cc9687d806e5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1201.0257",
    "kind": "arxiv",
    "version": 2
  }
}