Pith Number

pith:UWZNTD6C

pith:2018:UWZNTD6CJZUEMJX3J4BWHOMA3B

not attested not anchored not stored refs pending

Projective geometry in the Poincar\'e disk of a $C^*$-algebra

Esteban Andruchow, Gustavo Corach, L\'azaro Recht

arxiv:1806.08786 v1 · 2018-06-21 · math.OA · math.DG · 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{UWZNTD6CJZUEMJX3J4BWHOMA3B}

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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.

Cited by

1 paper in Pith

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

Receipt and verification

First computed	2026-05-18T00:12:31.265267Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a5b2d98fc24e684626fb4f0363b980d84add620834ef649e8890f80002b3551d

Aliases

arxiv: 1806.08786 · arxiv_version: 1806.08786v1 · doi: 10.48550/arxiv.1806.08786 · pith_short_12: UWZNTD6CJZUE · pith_short_16: UWZNTD6CJZUEMJX3 · pith_short_8: UWZNTD6C

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/UWZNTD6CJZUEMJX3J4BWHOMA3B \
  | 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: a5b2d98fc24e684626fb4f0363b980d84add620834ef649e8890f80002b3551d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2c6f29a1b4c6aa4ab2e31c0417e145e98468d1cde9b408f71808a9e34621f5c6",
    "cross_cats_sorted": [
      "math.DG",
      "math.FA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OA",
    "submitted_at": "2018-06-21T22:02:55Z",
    "title_canon_sha256": "af54aafe641c179eb7a122a902ee1d682905924bd3289401aa5dd40ee6b9c0c4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1806.08786",
    "kind": "arxiv",
    "version": 1
  }
}