Pith Number

pith:UPSBS2EB

pith:1997:UPSBS2EBCEYRUDOH6EQIWY2LGB

not attested not anchored not stored refs pending

KMS-weights on C*-algebras

Johan Kustermans

arxiv:funct-an/9704008 v1 · 1997-04-29 · funct-an · 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{UPSBS2EBCEYRUDOH6EQIWY2LGB}

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.

Cited by

1 paper in Pith

The reduced Hao-Ng isomorphism problem for non-degenerate product systems

Receipt and verification

First computed	2026-07-04T15:08:49.400021Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a3e419688111311a0dc7f1208b634b304f0a4c2e44ed8ff34dcec334703612a5

Aliases

arxiv: funct-an/9704008 · arxiv_version: funct-an/9704008v1 · doi: 10.48550/arxiv.funct-an/9704008 · pith_short_12: UPSBS2EBCEYR · pith_short_16: UPSBS2EBCEYRUDOH · pith_short_8: UPSBS2EB

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/UPSBS2EBCEYRUDOH6EQIWY2LGB \
  | 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: a3e419688111311a0dc7f1208b634b304f0a4c2e44ed8ff34dcec334703612a5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b0b76e2cac4732ae35408fda42b01287ab3108eb708c2c13df721406cbfac666",
    "cross_cats_sorted": [
      "math.OA"
    ],
    "license": "",
    "primary_cat": "funct-an",
    "submitted_at": "1997-04-29T16:39:55Z",
    "title_canon_sha256": "ce9e938a4d43da7ef2fa0948884a1c29c0414871c1f6da1740f8f551ca7f1ce6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "funct-an/9704008",
    "kind": "arxiv",
    "version": 1
  }
}