Pith Number

pith:TPTHU5S5

pith:2017:TPTHU5S5IAK75FHK35JOAB4LSU

not attested not anchored not stored refs pending

Rigidity for von Neumann algebras given by locally compact groups and their crossed products

Arnaud Brothier, Stefaan Vaes, Tobe Deprez

arxiv:1703.09092 v2 · 2017-03-27 · 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{TPTHU5S5IAK75FHK35JOAB4LSU}

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	2026-05-18T00:10:24.502206Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9be67a765d4015fe94eadf52e0078b951d4699ed3ba219ade6065568746bfc8c

Aliases

arxiv: 1703.09092 · arxiv_version: 1703.09092v2 · doi: 10.48550/arxiv.1703.09092 · pith_short_12: TPTHU5S5IAK7 · pith_short_16: TPTHU5S5IAK75FHK · pith_short_8: TPTHU5S5

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/TPTHU5S5IAK75FHK35JOAB4LSU \
  | 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: 9be67a765d4015fe94eadf52e0078b951d4699ed3ba219ade6065568746bfc8c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8a2411f191a8d9834cdd2c0379ce7df9501738c1f4b84dc008a4f43adb7bcdc6",
    "cross_cats_sorted": [
      "math.DS",
      "math.GR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OA",
    "submitted_at": "2017-03-27T14:14:35Z",
    "title_canon_sha256": "6ac4c61fc57440d51ee3db988d813aa430304d09345510b97268abbf93b8ca88"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1703.09092",
    "kind": "arxiv",
    "version": 2
  }
}