Pith Number

pith:JXQ6BACA

pith:2010:JXQ6BACAV6AXQAFQHMTUDU2ZBP

not attested not anchored not stored refs pending

Rigidity for von Neumann algebras and their invariants

Stefaan Vaes

arxiv:1008.3610 v1 · 2010-08-21 · 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{JXQ6BACAV6AXQAFQHMTUDU2ZBP}

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	2026-05-18T04:41:55.524041Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4de1e08040af817800b03b2741d3590be07bbc4926a45dd3a135a1ddb4db8aa6

Aliases

arxiv: 1008.3610 · arxiv_version: 1008.3610v1 · doi: 10.48550/arxiv.1008.3610 · pith_short_12: JXQ6BACAV6AX · pith_short_16: JXQ6BACAV6AXQAFQ · pith_short_8: JXQ6BACA

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/JXQ6BACAV6AXQAFQHMTUDU2ZBP \
  | 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: 4de1e08040af817800b03b2741d3590be07bbc4926a45dd3a135a1ddb4db8aa6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "acef3bccbc19bcb26e5dbedc01127133217301df670250a85ec5b72ebb5bda5b",
    "cross_cats_sorted": [
      "math.DS",
      "math.GR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OA",
    "submitted_at": "2010-08-21T07:10:05Z",
    "title_canon_sha256": "a7a2439286ed5aa7fdc426838cd489528c50424209a0a8b04f6dca474fbe6d71"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1008.3610",
    "kind": "arxiv",
    "version": 1
  }
}