Pith Number

pith:AEQG37A4

pith:2021:AEQG37A4VERZCWTZ66Q4WEPS4U

not attested not anchored not stored refs pending

Unital Banach algebras not isomorphic to Calkin algebras of separable Banach spaces

Bence Horv\'ath, Tomasz Kania

arxiv:2101.09950 v2 · 2021-01-25 · 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{AEQG37A4VERZCWTZ66Q4WEPS4U}

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	2026-07-05T03:39:33.455261Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

01206dfc1ca923915a79f7a1cb11f2e502eb739dd334526eae87d8619a458762

Aliases

arxiv: 2101.09950 · arxiv_version: 2101.09950v2 · doi: 10.48550/arxiv.2101.09950 · pith_short_12: AEQG37A4VERZ · pith_short_16: AEQG37A4VERZCWTZ · pith_short_8: AEQG37A4

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/AEQG37A4VERZCWTZ66Q4WEPS4U \
  | 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: 01206dfc1ca923915a79f7a1cb11f2e502eb739dd334526eae87d8619a458762

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9a9b93115e0bc758a5ed669ef95455096897ec3a39f7cf23053f8a3f4e5c0749",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "math.FA",
    "submitted_at": "2021-01-25T08:31:26Z",
    "title_canon_sha256": "c2a677b6d093b326a2b947e7fa31e3cc2bb619fbf52fefaffa227a74d79b9d1c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2101.09950",
    "kind": "arxiv",
    "version": 2
  }
}