Pith Number

pith:CEZ3GERM

pith:2013:CEZ3GERMOUJPPISUPUCFK73FKK

not attested not anchored not stored refs pending

Reduction of filtered K-theory and a characterization of Cuntz-Krieger algebras

Rasmus Bentmann, Sara Arklint, Takeshi Katsura

arxiv:1301.7223 v3 · 2013-01-30 · math.OA · math.KT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{CEZ3GERMOUJPPISUPUCFK73FKK}

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	2026-05-18T03:08:14.332961Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1133b3122c7512f7a2547d04557f6552bfc3b08ccea9cea7be791b59038d4896

Aliases

arxiv: 1301.7223 · arxiv_version: 1301.7223v3 · doi: 10.48550/arxiv.1301.7223 · pith_short_12: CEZ3GERMOUJP · pith_short_16: CEZ3GERMOUJPPISU · pith_short_8: CEZ3GERM

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/CEZ3GERMOUJPPISUPUCFK73FKK \
  | 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: 1133b3122c7512f7a2547d04557f6552bfc3b08ccea9cea7be791b59038d4896

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4a69318436ec621be54e2f49ab09458b716065864799725b20c0b23b4bb8b0d2",
    "cross_cats_sorted": [
      "math.KT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OA",
    "submitted_at": "2013-01-30T13:41:03Z",
    "title_canon_sha256": "5540a2148e7c20a72e1a692afe0574e942b24b77d665182db4bf6298173765b7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1301.7223",
    "kind": "arxiv",
    "version": 3
  }
}