Pith Number

pith:EYWFA2SE

pith:2011:EYWFA2SE3SCVGM4N4LWRGUY4D2

not attested not anchored not stored refs pending

Cyclic Hilbert spaces and Connes' embedding problem

Florin Radulescu, Valerio Capraro

arxiv:1102.5430 v3 · 2011-02-26 · math.OA · math.FA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{EYWFA2SE3SCVGM4N4LWRGUY4D2}

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	2026-05-18T03:13:11.164381Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

262c506a44dc8553338de2ed13531c1e998a9cd05bb780b038ab2342c486a2a4

Aliases

arxiv: 1102.5430 · arxiv_version: 1102.5430v3 · doi: 10.48550/arxiv.1102.5430 · pith_short_12: EYWFA2SE3SCV · pith_short_16: EYWFA2SE3SCVGM4N · pith_short_8: EYWFA2SE

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/EYWFA2SE3SCVGM4N4LWRGUY4D2 \
  | 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: 262c506a44dc8553338de2ed13531c1e998a9cd05bb780b038ab2342c486a2a4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1229b85cdb75a19c510a4a037f278733c1fc157131a2f960727c0e0ba450b4f5",
    "cross_cats_sorted": [
      "math.FA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OA",
    "submitted_at": "2011-02-26T17:00:49Z",
    "title_canon_sha256": "8cc9bdc8dfd44b32abd4784634763f617f539608b250c2a172de89a20d5e89f7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1102.5430",
    "kind": "arxiv",
    "version": 3
  }
}