Pith Number

pith:OEAVBKJ2

pith:2019:OEAVBKJ2RU6GWFRDI476BCWIOF

not attested not anchored not stored refs pending

The C*-algebra of the semi-direct product K and A

Hedi Regeiba, Jean Ludwig

arxiv:1904.09873 v1 · 2019-04-19 · math.OA · math.FA · math.GR · math.RT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{OEAVBKJ2RU6GWFRDI476BCWIOF}

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	2026-05-17T23:48:03.006644Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

710150a93a8d3c6b1623473fe08ac87144dfa1de37afee042127016ac1670d84

Aliases

arxiv: 1904.09873 · arxiv_version: 1904.09873v1 · doi: 10.48550/arxiv.1904.09873 · pith_short_12: OEAVBKJ2RU6G · pith_short_16: OEAVBKJ2RU6GWFRD · pith_short_8: OEAVBKJ2

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/OEAVBKJ2RU6GWFRDI476BCWIOF \
  | 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: 710150a93a8d3c6b1623473fe08ac87144dfa1de37afee042127016ac1670d84

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "053451b8ff3ef16ba4a7ef19e5caa385dec7151da35ea8158e4cfb190d17ce7b",
    "cross_cats_sorted": [
      "math.FA",
      "math.GR",
      "math.RT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OA",
    "submitted_at": "2019-04-19T16:41:10Z",
    "title_canon_sha256": "46526d6e6c1535d66fd40b5afb7cdd5394a13d2bcdbadff7eeb8924aee62ef63"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1904.09873",
    "kind": "arxiv",
    "version": 1
  }
}