Pith Number

pith:NOW6QEBU

pith:2018:NOW6QEBUH3HYVD7IHSZLRDDOAR

not attested not anchored not stored refs pending

Properly proximal groups and their von Neumann algebras

Adrian Ioana, Jesse Peterson, R\'emi Boutonnet

arxiv:1809.01881 v2 · 2018-09-06 · math.OA · math.DS · 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{NOW6QEBUH3HYVD7IHSZLRDDOAR}

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	2026-05-18T00:00:43.077165Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6bade810343ecf8a8fe83cb2b88c6e0465066e98c1a616ebb089df0c4b393d4f

Aliases

arxiv: 1809.01881 · arxiv_version: 1809.01881v2 · doi: 10.48550/arxiv.1809.01881 · pith_short_12: NOW6QEBUH3HY · pith_short_16: NOW6QEBUH3HYVD7I · pith_short_8: NOW6QEBU

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/NOW6QEBUH3HYVD7IHSZLRDDOAR \
  | 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: 6bade810343ecf8a8fe83cb2b88c6e0465066e98c1a616ebb089df0c4b393d4f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9e40d652db022925ea6d6ac59a6d232729e28f817c37537505e7b87a96674c80",
    "cross_cats_sorted": [
      "math.DS",
      "math.GR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OA",
    "submitted_at": "2018-09-06T08:43:25Z",
    "title_canon_sha256": "4024ecedf714928b79fb0719386a34e7848504648ea561d2905ba23d9ec96f0a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1809.01881",
    "kind": "arxiv",
    "version": 2
  }
}