Pith Number

pith:KMVTBFC4

pith:2017:KMVTBFC4XGODN2QPL35ZNNB7TP

not attested not anchored not stored refs pending

Block Kronecker Linearizations of Matrix Polynomials and their Backward Errors

Froil\'an M. Dopico, Javier P\'erez, Paul Van Dooren, Piers W. Lawrence

arxiv:1707.04843 v1 · 2017-07-16 · 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{KMVTBFC4XGODN2QPL35ZNNB7TP}

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	2026-05-18T00:40:12.033029Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

532b30945cb99c36ea0f5efb96b43f9bc142e6c3bf067e73058270dc1050d9b7

Aliases

arxiv: 1707.04843 · arxiv_version: 1707.04843v1 · doi: 10.48550/arxiv.1707.04843 · pith_short_12: KMVTBFC4XGOD · pith_short_16: KMVTBFC4XGODN2QP · pith_short_8: KMVTBFC4

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/KMVTBFC4XGODN2QPL35ZNNB7TP \
  | 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: 532b30945cb99c36ea0f5efb96b43f9bc142e6c3bf067e73058270dc1050d9b7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e1000514420653a0b4b448152be92af1a52d1d3a0d0c259fb3b42be94d9c560b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2017-07-16T08:17:30Z",
    "title_canon_sha256": "a3c7813a771c1d394006ad43af4069607e11a7752a943f7f3c5b0c8799049021"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1707.04843",
    "kind": "arxiv",
    "version": 1
  }
}