Pith Number

pith:XT3CEQLT

pith:1992:XT3CEQLTSNRYKHXBEASPISIOO6

not attested not anchored not stored refs pending

Circle Actions on C*-Algebras, Partial Automorphisms and a Generalized Pimsner-Voiculescu Exact Sequence

Ruy Exel

arxiv:funct-an/9211001 v1 · 1992-11-22 · 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{XT3CEQLTSNRYKHXBEASPISIOO6}

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	2026-05-18T01:06:48.465905Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bcf62241739363851ee12024f4490e77b01eba23d5f0e74e6cc255e6524a6df1

Aliases

arxiv: funct-an/9211001 · arxiv_version: funct-an/9211001v1 · doi: 10.48550/arxiv.funct-an/9211001 · pith_short_12: XT3CEQLTSNRY · pith_short_16: XT3CEQLTSNRYKHXB · pith_short_8: XT3CEQLT

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/XT3CEQLTSNRYKHXBEASPISIOO6 \
  | 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: bcf62241739363851ee12024f4490e77b01eba23d5f0e74e6cc255e6524a6df1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d4ecccac4f97bc67889bfa180b16dcd74f13055897f0635b13dfd0b11d5dabc9",
    "cross_cats_sorted": [
      "math.OA"
    ],
    "license": "",
    "primary_cat": "funct-an",
    "submitted_at": "1992-11-22T20:59:54Z",
    "title_canon_sha256": "5c5d4df6e998907ccd482b0e527d45e04a982af8d8881519887a4ac7607f9caa"
  },
  "schema_version": "1.0",
  "source": {
    "id": "funct-an/9211001",
    "kind": "arxiv",
    "version": 1
  }
}