Pith Number

pith:SZAT5LMO

pith:2018:SZAT5LMOVNA24NMU4OQMJMCNV4

not attested not anchored not stored refs pending

A weak homotopy equivalence type result related to Kirchberg algebras

Hiroki Matui, Masaki Izumi

arxiv:1810.05849 v2 · 2018-10-13 · 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{SZAT5LMOVNA24NMU4OQMJMCNV4}

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	2026-05-17T23:52:51.910624Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

96413ead8eab41ae3594e3a0c4b04daf1d0b6f6ba9739d13f7917ba8ea5216f4

Aliases

arxiv: 1810.05849 · arxiv_version: 1810.05849v2 · doi: 10.48550/arxiv.1810.05849 · pith_short_12: SZAT5LMOVNA2 · pith_short_16: SZAT5LMOVNA24NMU · pith_short_8: SZAT5LMO

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/SZAT5LMOVNA24NMU4OQMJMCNV4 \
  | 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: 96413ead8eab41ae3594e3a0c4b04daf1d0b6f6ba9739d13f7917ba8ea5216f4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "03778b434174591d2dc027bbc726deb1c40e679be3eda44e7017dde795cb0383",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OA",
    "submitted_at": "2018-10-13T12:13:03Z",
    "title_canon_sha256": "08fc17f4cc10e460a24c56f1487dd7daaf247c6afc63c1203fd4cd353a0ab654"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1810.05849",
    "kind": "arxiv",
    "version": 2
  }
}