pith. sign in
Pith Number

pith:SQPKQSPE

pith:2008:SQPKQSPEFNVZON7CR3XKUFX7NR
not attested not anchored not stored refs pending

Continuity of ring *-homomorphisms between C*-algebras

Mark Tomforde

arxiv:0810.0422 v4 · 2008-10-02 · math.OA · math.RA

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?
Add to your LaTeX paper 
\usepackage{pith}
\pithnumber{SQPKQSPEFNVZON7CR3XKUFX7NR}

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 2026-07-04T15:42:06.975484Z
Builder pith-number-builder-2026-05-17-v1
Signature Pith Ed25519 (pith-v1-2026-05) · public key
Schema pith-number/v1.0

Canonical hash

941ea849e42b6b9737e28eeeaa16ff6c6b9ce12a6692b92e1d7755cac452bc62

Aliases

arxiv: 0810.0422 · arxiv_version: 0810.0422v4 · doi: 10.48550/arxiv.0810.0422 · pith_short_12: SQPKQSPEFNVZ · pith_short_16: SQPKQSPEFNVZON7C · pith_short_8: SQPKQSPE
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/SQPKQSPEFNVZON7CR3XKUFX7NR \
  | 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: 941ea849e42b6b9737e28eeeaa16ff6c6b9ce12a6692b92e1d7755cac452bc62
Canonical record JSON 
{
  "metadata": {
    "abstract_canon_sha256": "9aef2331f5bcf4a23ee4e3368f58ecc05d4e34b89d043259d74c1ab5f34ef114",
    "cross_cats_sorted": [
      "math.RA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OA",
    "submitted_at": "2008-10-02T19:26:40Z",
    "title_canon_sha256": "a09e6307a81e38366daec55000bd0c0a4ae61e737cd3425562c40cda1b761637"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0810.0422",
    "kind": "arxiv",
    "version": 4
  }
}