Pith Number

pith:HSIVYQTH

pith:2017:HSIVYQTHJOKM3EPYLQIERAK44N

not attested not anchored not stored refs pending

Block diagonal dominance of matrices revisited: bounds for the norms of inverses and eigenvalue inclusion sets

Carlos Echeverr\'ia, J\"org Liesen, Reinhard Nabben

arxiv:1712.05662 v2 · 2017-12-15 · math.NA · 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{HSIVYQTHJOKM3EPYLQIERAK44N}

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	2026-05-18T00:15:52.117524Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3c915c42674b94cd91f85c1048815ce347070177738c3de2c9d2f5b10bab3e05

Aliases

arxiv: 1712.05662 · arxiv_version: 1712.05662v2 · doi: 10.48550/arxiv.1712.05662 · pith_short_12: HSIVYQTHJOKM · pith_short_16: HSIVYQTHJOKM3EPY · pith_short_8: HSIVYQTH

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/HSIVYQTHJOKM3EPYLQIERAK44N \
  | 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: 3c915c42674b94cd91f85c1048815ce347070177738c3de2c9d2f5b10bab3e05

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "18a8a6bc3b65fdf3ebf119b7b7d4886809b56798763b6e06dc221264740537dc",
    "cross_cats_sorted": [
      "math.RA"
    ],
    "license": "http://creativecommons.org/licenses/by-nc-sa/4.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2017-12-15T13:25:50Z",
    "title_canon_sha256": "cc822722cdfb3d8f37dbacc2f9ca87fecd1b03a9a5f687925b2439428e5fd563"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1712.05662",
    "kind": "arxiv",
    "version": 2
  }
}