Pith Number

pith:QPHFPG3Z

pith:2019:QPHFPG3ZZUO2TJZ2JKJOIIMUUT

not attested not anchored not stored refs pending

A non commutative K\"ahler structure on the Poincar\'e disk of a C*-algebra

Esteban Andruchow, Gustavo Corach, L\'azaro Recht

arxiv:1907.04912 v1 · 2019-07-10 · math.FA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QPHFPG3ZZUO2TJZ2JKJOIIMUUT}

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	2026-05-17T23:40:54.522572Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

83ce579b79cd1da9a73a4a92e42194a4fb13665410750d27faf675b8b7fa5a3e

Aliases

arxiv: 1907.04912 · arxiv_version: 1907.04912v1 · doi: 10.48550/arxiv.1907.04912 · pith_short_12: QPHFPG3ZZUO2 · pith_short_16: QPHFPG3ZZUO2TJZ2 · pith_short_8: QPHFPG3Z

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/QPHFPG3ZZUO2TJZ2JKJOIIMUUT \
  | 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: 83ce579b79cd1da9a73a4a92e42194a4fb13665410750d27faf675b8b7fa5a3e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "40e25544d3655deed3ac4011f7386a51a1f0e4167e1ef2f7a915951f69736c17",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.FA",
    "submitted_at": "2019-07-10T20:32:12Z",
    "title_canon_sha256": "7398170b96985d7f03457324de2607f1c502ec6730f1e7f36e724f6a696a9273"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1907.04912",
    "kind": "arxiv",
    "version": 1
  }
}