Pith Number

pith:K6CP75CT

pith:2013:K6CP75CT3HNNE2M2MT7YTDLC5J

not attested not anchored not stored refs pending

Partial classification of the Baumslag-Solitar group von Neumann algebras

Niels Meesschaert, Stefaan Vaes

arxiv:1301.0510 v3 · 2013-01-03 · math.OA · math.GR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{K6CP75CT3HNNE2M2MT7YTDLC5J}

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	2026-05-18T02:46:04.744588Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5784fff453d9dad2699a64ff898d62ea74842dcbbc8bb202ef7ef08a60cf130c

Aliases

arxiv: 1301.0510 · arxiv_version: 1301.0510v3 · doi: 10.48550/arxiv.1301.0510 · pith_short_12: K6CP75CT3HNN · pith_short_16: K6CP75CT3HNNE2M2 · pith_short_8: K6CP75CT

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/K6CP75CT3HNNE2M2MT7YTDLC5J \
  | 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: 5784fff453d9dad2699a64ff898d62ea74842dcbbc8bb202ef7ef08a60cf130c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b2ba639aeaaa4b7c4494cb05a1b3116249dc96f1a8dbb4000aac102063f58bd1",
    "cross_cats_sorted": [
      "math.GR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OA",
    "submitted_at": "2013-01-03T17:10:32Z",
    "title_canon_sha256": "d6941a588a2c9b95fe842bfe199f6558b5cc39e1c96ee4bd494a24a6e97c250e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1301.0510",
    "kind": "arxiv",
    "version": 3
  }
}