Pith Number

pith:LEQIBGZI

pith:2015:LEQIBGZI4ZZK4W3YHUOHN24RKQ

not attested not anchored not stored refs pending

Iterative methods for the delay Lyapunov equation with T-Sylvester preconditioning

Elias Jarlebring, Federico Poloni

arxiv:1507.02100 v2 · 2015-07-08 · 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{LEQIBGZI4ZZK4W3YHUOHN24RKQ}

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	2026-05-18T00:03:26.514665Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5920809b28e672ae5b783d1c76eb915433761e884baf8fbe306da6bb9e28a5b5

Aliases

arxiv: 1507.02100 · arxiv_version: 1507.02100v2 · doi: 10.48550/arxiv.1507.02100 · pith_short_12: LEQIBGZI4ZZK · pith_short_16: LEQIBGZI4ZZK4W3Y · pith_short_8: LEQIBGZI

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/LEQIBGZI4ZZK4W3YHUOHN24RKQ \
  | 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: 5920809b28e672ae5b783d1c76eb915433761e884baf8fbe306da6bb9e28a5b5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "570d28d5ef78e8bf5552f558fab90211ddee86a18c014bbff04a51474f9350ae",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2015-07-08T11:22:36Z",
    "title_canon_sha256": "a4bd87807ec885e5cb235bf680cd6c8a754f09edae9278ce5c08e76ffce47bd9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1507.02100",
    "kind": "arxiv",
    "version": 2
  }
}