Pith Number

pith:KGKJ6XKA

pith:2008:KGKJ6XKAQH3HLJFV5GH2N3ZTFM

not attested not anchored not stored refs pending

Semiprojectivity of universal C*-algebras generated by algebraic elements

Tatiana Shulman

arxiv:0810.2497 v4 · 2008-10-14 · math.FA · 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{KGKJ6XKAQH3HLJFV5GH2N3ZTFM}

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	2026-05-18T04:31:21.179463Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

51949f5d4081f675a4b5e98fa6ef332b13e242773878ea859278dda5be50e268

Aliases

arxiv: 0810.2497 · arxiv_version: 0810.2497v4 · doi: 10.48550/arxiv.0810.2497 · pith_short_12: KGKJ6XKAQH3H · pith_short_16: KGKJ6XKAQH3HLJFV · pith_short_8: KGKJ6XKA

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/KGKJ6XKAQH3HLJFV5GH2N3ZTFM \
  | 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: 51949f5d4081f675a4b5e98fa6ef332b13e242773878ea859278dda5be50e268

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "da35f7e60ea6dc08784b6fe02248c177e317a906f8411fce80e8f31d5511578f",
    "cross_cats_sorted": [
      "math.OA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.FA",
    "submitted_at": "2008-10-14T17:02:59Z",
    "title_canon_sha256": "f3ec09ee1f44ff78376a59c9d9596036bcb26285afc576831a22d8651b7110d9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0810.2497",
    "kind": "arxiv",
    "version": 4
  }
}