Pith Number

pith:TD5N4P4C

pith:2016:TD5N4P4CW3V6LAVLPDC2HF7HQS

not attested not anchored not stored refs pending

Local convergence of spectra and pseudospectra

Sabine B\"ogli

arxiv:1605.01041 v1 · 2016-05-03 · math.SP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{TD5N4P4CW3V6LAVLPDC2HF7HQS}

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.

Cited by

1 paper in Pith

The essential numerical range for unbounded linear operators

Receipt and verification

First computed	2026-05-18T01:15:47.428723Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

98fade3f82b6ebe582ab78c5a397e7848c57f62668f7c9b30aa30c2b387fd974

Aliases

arxiv: 1605.01041 · arxiv_version: 1605.01041v1 · doi: 10.48550/arxiv.1605.01041 · pith_short_12: TD5N4P4CW3V6 · pith_short_16: TD5N4P4CW3V6LAVL · pith_short_8: TD5N4P4C

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/TD5N4P4CW3V6LAVLPDC2HF7HQS \
  | 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: 98fade3f82b6ebe582ab78c5a397e7848c57f62668f7c9b30aa30c2b387fd974

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4d486bad780f4470fe492213c1603bb6a5456dbf9524e15c037d647ac5ad5c33",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.SP",
    "submitted_at": "2016-05-03T19:41:13Z",
    "title_canon_sha256": "25e72de80dadba4d850790ed1f10265c1a70c43ed35a627b2b7095a8e561afdc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1605.01041",
    "kind": "arxiv",
    "version": 1
  }
}