Pith Number

pith:UK74VNGP

pith:2019:UK74VNGPDMSPO44DDMRDXI5AA5

not attested not anchored not stored refs pending

Rigidity results for von Neumann algebras arising from mixing extensions of profinite actions of groups on probability spaces

Ionut Chifan, Sayan Das

arxiv:1903.07143 v3 · 2019-03-17 · math.OA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{UK74VNGPDMSPO44DDMRDXI5AA5}

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	2026-05-17T23:47:12.022557Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a2bfcab4cf1b24f773831b223ba3a007548134b85fadacce89c50eab2e841dc7

Aliases

arxiv: 1903.07143 · arxiv_version: 1903.07143v3 · doi: 10.48550/arxiv.1903.07143 · pith_short_12: UK74VNGPDMSP · pith_short_16: UK74VNGPDMSPO44D · pith_short_8: UK74VNGP

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/UK74VNGPDMSPO44DDMRDXI5AA5 \
  | 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: a2bfcab4cf1b24f773831b223ba3a007548134b85fadacce89c50eab2e841dc7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "38a5d1024eee2d4f41e4d1c7ec3750ee42e1a872a369bbdd07d2fe08ee9cc70d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OA",
    "submitted_at": "2019-03-17T18:32:40Z",
    "title_canon_sha256": "2a28e229bd491403d314d4c8010c5c6d504b9f40925f2aab6bfc450f9c18cb89"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1903.07143",
    "kind": "arxiv",
    "version": 3
  }
}