Pith Number

pith:L2R2UHML

pith:2023:L2R2UHMLZJKL6M6V3GBS4ENHUO

not attested not anchored not stored refs pending

Representing topological full groups in Steinberg algebras and C*-algebras

Becky Armstrong, Dilian Yang, Eun Ji Kang, Lisa Orloff Clark, Mahya Ghandehari

arxiv:2309.04927 v2 · 2023-09-10 · math.OA · math.GR · math.RA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{L2R2UHMLZJKL6M6V3GBS4ENHUO}

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	2026-07-05T07:30:04.617495Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5ea3aa1d8bca54bf33d5d9832e11a7a3968f22ad2abd18b6ae0d8b06e997f0bc

Aliases

arxiv: 2309.04927 · arxiv_version: 2309.04927v2 · doi: 10.48550/arxiv.2309.04927 · pith_short_12: L2R2UHMLZJKL · pith_short_16: L2R2UHMLZJKL6M6V · pith_short_8: L2R2UHML

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/L2R2UHMLZJKL6M6V3GBS4ENHUO \
  | 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: 5ea3aa1d8bca54bf33d5d9832e11a7a3968f22ad2abd18b6ae0d8b06e997f0bc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2683b74b2f188479f8ba33f31851efbbf1f702dec3e4d095fab6a194253c559d",
    "cross_cats_sorted": [
      "math.GR",
      "math.RA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OA",
    "submitted_at": "2023-09-10T03:34:14Z",
    "title_canon_sha256": "70045c062fee497ebfe0fb7ea917a2816a14f9249d9d688bef8465df82625172"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2309.04927",
    "kind": "arxiv",
    "version": 2
  }
}