Pith Number

pith:TGPFHBOQ

pith:2014:TGPFHBOQM3UC3AAWQHOIR6SQ4K

not attested not anchored not stored refs pending

Spectral behavior of preconditioned non-Hermitian multilevel block Toeplitz matrices with matrix-valued symbol

Carlo Garoni, Debora Sesana, Marco Donatelli, Mariarosa Mazza, Stefano Serra-Capizzano

arxiv:1404.7101 v1 · 2014-04-28 · math.NA

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{TGPFHBOQM3UC3AAWQHOIR6SQ4K}

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	2026-05-18T02:53:05.158460Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

999e5385d066e82d801681dc88fa50e290fd1c6cc669035852a14a8da6c22a0f

Aliases

arxiv: 1404.7101 · arxiv_version: 1404.7101v1 · doi: 10.48550/arxiv.1404.7101 · pith_short_12: TGPFHBOQM3UC · pith_short_16: TGPFHBOQM3UC3AAW · pith_short_8: TGPFHBOQ

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/TGPFHBOQM3UC3AAWQHOIR6SQ4K \
  | 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: 999e5385d066e82d801681dc88fa50e290fd1c6cc669035852a14a8da6c22a0f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ba35361eaa82442b3884f081c0f9be1c4177c1bd02cb1854e726412f88a526d2",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2014-04-28T19:18:50Z",
    "title_canon_sha256": "556831b2a3c80131dc38ba96a71badaa8b157f654e675d2adb093b49a7fc607e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1404.7101",
    "kind": "arxiv",
    "version": 1
  }
}