Pith Number

pith:L7XRWWIV

pith:2015:L7XRWWIV4DT7HKSOCFBVHLH36Y

not attested not anchored not stored refs pending

Reduced C*-algebras of Fell bundles over inverse semigroups

Alcides Buss, Ralf Meyer, Ruy Exel

arxiv:1512.05570 v2 · 2015-12-17 · 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{L7XRWWIV4DT7HKSOCFBVHLH36Y}

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	2026-05-17T23:47:40.422573Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5fef1b5915e0e7f3aa4e114353acfbf60735ab55f3f62378f50ee90eed04e65c

Aliases

arxiv: 1512.05570 · arxiv_version: 1512.05570v2 · doi: 10.48550/arxiv.1512.05570 · pith_short_12: L7XRWWIV4DT7 · pith_short_16: L7XRWWIV4DT7HKSO · pith_short_8: L7XRWWIV

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/L7XRWWIV4DT7HKSOCFBVHLH36Y \
  | 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: 5fef1b5915e0e7f3aa4e114353acfbf60735ab55f3f62378f50ee90eed04e65c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "535993707ad422c67076a63764ca69d7049b27641d13a6629056631db829326d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OA",
    "submitted_at": "2015-12-17T13:08:33Z",
    "title_canon_sha256": "0da380761b020687230e2960b24c97966a79405d6b5588b3877c20ceb3b5bfd3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1512.05570",
    "kind": "arxiv",
    "version": 2
  }
}