Pith Number

pith:JCC6QIYD

pith:2017:JCC6QIYDQ5KX6RRKF57ENHRJHE

not attested not anchored not stored refs pending

Solving rank structured Sylvester and Lyapunov equations

Davide Palitta, Leonardo Robol, Stefano Massei

arxiv:1711.05493 v2 · 2017-11-15 · 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{JCC6QIYDQ5KX6RRKF57ENHRJHE}

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	2026-05-18T00:07:32.930853Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4885e8230387557f462a2f7e469e293906a4de6439a98af54427e56639a37e0d

Aliases

arxiv: 1711.05493 · arxiv_version: 1711.05493v2 · doi: 10.48550/arxiv.1711.05493 · pith_short_12: JCC6QIYDQ5KX · pith_short_16: JCC6QIYDQ5KX6RRK · pith_short_8: JCC6QIYD

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/JCC6QIYDQ5KX6RRKF57ENHRJHE \
  | 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: 4885e8230387557f462a2f7e469e293906a4de6439a98af54427e56639a37e0d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c369619efcc8ead57243ba2c1bff396ed3c37d4aab07868a322550aa4e7ff7d1",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2017-11-15T10:49:15Z",
    "title_canon_sha256": "b7fdbd61f0e22f6fdf0ba424097925062705b54da348878236a1181f8a4f605f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1711.05493",
    "kind": "arxiv",
    "version": 2
  }
}