Pith Number

pith:A6LVSO6O

pith:2018:A6LVSO6OB6KA2NK6FHJ5HLNE4Q

not attested not anchored not stored refs pending

Regularizing algorithm for mixed matrix pencils

Tetiana Klymchuk

arxiv:1808.05913 v1 · 2018-08-17 · math.RT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{A6LVSO6OB6KA2NK6FHJ5HLNE4Q}

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	2026-05-18T00:07:51.670408Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0797593bce0f940d355e29d3d3ada4e405566455ef7603cecdbee90d32a2bdff

Aliases

arxiv: 1808.05913 · arxiv_version: 1808.05913v1 · doi: 10.48550/arxiv.1808.05913 · pith_short_12: A6LVSO6OB6KA · pith_short_16: A6LVSO6OB6KA2NK6 · pith_short_8: A6LVSO6O

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/A6LVSO6OB6KA2NK6FHJ5HLNE4Q \
  | 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: 0797593bce0f940d355e29d3d3ada4e405566455ef7603cecdbee90d32a2bdff

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "59bca1ea518044526406b906191d05c33cd4e249d9d06fb4c6b9fdfc80320fc6",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.RT",
    "submitted_at": "2018-08-17T16:01:28Z",
    "title_canon_sha256": "eeb38614b8f5ec665abe1496bf8499bfd362951260cee42d505734bf41658e0f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1808.05913",
    "kind": "arxiv",
    "version": 1
  }
}