Pith Number

pith:242SFBMM

pith:2014:242SFBMMEBJARBVM5OGNCNM6J4

not attested not anchored not stored refs pending

The Drazin spectrum of tensor product of Banach algebra elements and elementary operators

Enrico Boasso

arxiv:1404.3121 v1 · 2014-04-11 · 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{242SFBMMEBJARBVM5OGNCNM6J4}

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	2026-05-18T02:54:22.166604Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d73522858c20520886aceb8cd1359e4f08ceb75cd9718d5fbad48ba0f1bad88c

Aliases

arxiv: 1404.3121 · arxiv_version: 1404.3121v1 · doi: 10.48550/arxiv.1404.3121 · pith_short_12: 242SFBMMEBJA · pith_short_16: 242SFBMMEBJARBVM · pith_short_8: 242SFBMM

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/242SFBMMEBJARBVM5OGNCNM6J4 \
  | 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: d73522858c20520886aceb8cd1359e4f08ceb75cd9718d5fbad48ba0f1bad88c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "922d50c0cafdd947311d55890f546df171d980df0b596d0da2be1d778ece821a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.FA",
    "submitted_at": "2014-04-11T14:36:37Z",
    "title_canon_sha256": "c8b4829fba0613a9f1d8bf4a7ec7ae272c48fe590855a47e52ece66a2de0beda"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1404.3121",
    "kind": "arxiv",
    "version": 1
  }
}