Pith Number

pith:NV3T47JX

pith:2018:NV3T47JXYLX7XSN4WMIGDF6GNF

not attested not anchored not stored refs pending

On operator amenability of Fourier-Stieltjes algebras

Nico Spronk

arxiv:1806.08421 v1 · 2018-06-21 · 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{NV3T47JXYLX7XSN4WMIGDF6GNF}

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	2026-05-18T00:12:37.408586Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6d773e7d37c2effbc9bcb3106197c6694e325c7e365646dfd567299635c8a58a

Aliases

arxiv: 1806.08421 · arxiv_version: 1806.08421v1 · doi: 10.48550/arxiv.1806.08421 · pith_short_12: NV3T47JXYLX7 · pith_short_16: NV3T47JXYLX7XSN4 · pith_short_8: NV3T47JX

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/NV3T47JXYLX7XSN4WMIGDF6GNF \
  | 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: 6d773e7d37c2effbc9bcb3106197c6694e325c7e365646dfd567299635c8a58a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d6b076b82f939b06b889f2373b8320760c9f18f8455d07b6c648f1e8cfff5a0a",
    "cross_cats_sorted": [
      "math.FA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OA",
    "submitted_at": "2018-06-21T20:44:45Z",
    "title_canon_sha256": "af5915df562d5a33f6997e3dbbf3aaa4aa1964c92ed637381f499ec3b35d76cc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1806.08421",
    "kind": "arxiv",
    "version": 1
  }
}