pith. sign in
Pith Number

pith:UUM2NPXO

pith:2011:UUM2NPXO7YTIOT72PTEPTRLBN6
not attested not anchored not stored refs pending

Semicrossed products of C*-algebras and their C*-envelopes

Evgenios T. A. Kakariadis

arxiv:1102.2252 v4 · 2011-02-10 · 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{UUM2NPXO7YTIOT72PTEPTRLBN6}

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 2026-05-18T00:08:01.164005Z
Builder pith-number-builder-2026-05-17-v1
Signature Pith Ed25519 (pith-v1-2026-05) · public key
Schema pith-number/v1.0

Canonical hash

a519a6beeefe26874ffa7cc8f9c5616f831a286e5aac1a7889bd20c537a164fa

Aliases

arxiv: 1102.2252 · arxiv_version: 1102.2252v4 · doi: 10.48550/arxiv.1102.2252 · pith_short_12: UUM2NPXO7YTI · pith_short_16: UUM2NPXO7YTIOT72 · pith_short_8: UUM2NPXO
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/UUM2NPXO7YTIOT72PTEPTRLBN6 \
  | 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: a519a6beeefe26874ffa7cc8f9c5616f831a286e5aac1a7889bd20c537a164fa
Canonical record JSON 
{
  "metadata": {
    "abstract_canon_sha256": "6f02a4206f97788ddcc51575b499257bfec477cccb8bbe5ca7b5282b223671d2",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OA",
    "submitted_at": "2011-02-10T22:36:57Z",
    "title_canon_sha256": "239d451960bd3d23e1abbd76bf9482c128180a8616f21f2d9707e0a68ceacdfa"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1102.2252",
    "kind": "arxiv",
    "version": 4
  }
}