Pith Number

pith:ORZB5GWL

pith:2018:ORZB5GWLMGF3WJY3IW4V25S4K2

not attested not anchored not stored refs pending

Unbounded Derivations in Bunce-Deddens-Toeplitz Algebras

Honglin Wang, Kaoru Sakai, Matt McBride, Slawomir Klimek, Sumedha Rathnayake

arxiv:1807.10402 v1 · 2018-07-27 · math.OA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ORZB5GWLMGF3WJY3IW4V25S4K2}

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	2026-05-18T00:09:40.706726Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

74721e9acb618bbb271b45b95d765c56b64267c7392465c23b8b0bcbc1bc0ea3

Aliases

arxiv: 1807.10402 · arxiv_version: 1807.10402v1 · doi: 10.48550/arxiv.1807.10402 · pith_short_12: ORZB5GWLMGF3 · pith_short_16: ORZB5GWLMGF3WJY3 · pith_short_8: ORZB5GWL

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/ORZB5GWLMGF3WJY3IW4V25S4K2 \
  | 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: 74721e9acb618bbb271b45b95d765c56b64267c7392465c23b8b0bcbc1bc0ea3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "394387a2be7dbc873762a466f0a7a236ff6598210b6e82a1262901c3b9977cd7",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OA",
    "submitted_at": "2018-07-27T00:02:13Z",
    "title_canon_sha256": "51eaee28bd0b2a545579a099549deceab741f6ee3dd1c494b0f5b313ce7c325d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1807.10402",
    "kind": "arxiv",
    "version": 1
  }
}