Pith Number

pith:CPCHHFZ3

pith:2010:CPCHHFZ3UY5UUKZ5VA7GAGFNTY

not attested not anchored not stored refs pending

Automorphisms of the UHF algebra that do not extend to the Cuntz algebra

Roberto Conti

arxiv:1003.1815 v1 · 2010-03-09 · math.OA · math.DS · 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{CPCHHFZ3UY5UUKZ5VA7GAGFNTY}

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	2026-05-18T04:24:43.846556Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

13c473973ba63b4a2b3da83e6018ad9e3c5d6a7cd338bcf1c5b146b39f0a42ba

Aliases

arxiv: 1003.1815 · arxiv_version: 1003.1815v1 · doi: 10.48550/arxiv.1003.1815 · pith_short_12: CPCHHFZ3UY5U · pith_short_16: CPCHHFZ3UY5UUKZ5 · pith_short_8: CPCHHFZ3

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/CPCHHFZ3UY5UUKZ5VA7GAGFNTY \
  | 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: 13c473973ba63b4a2b3da83e6018ad9e3c5d6a7cd338bcf1c5b146b39f0a42ba

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "463194f888a1fbd5a94cadf9e1f392c14bb425dbda3d54808d9cd6e93bd2e3d6",
    "cross_cats_sorted": [
      "math.DS",
      "math.FA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OA",
    "submitted_at": "2010-03-09T07:28:27Z",
    "title_canon_sha256": "f1ddcc3b85ee391d227c7f8de83886d079dcaac570b268657d8325c7846969f2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1003.1815",
    "kind": "arxiv",
    "version": 1
  }
}