Pith Number

pith:K4LI3JPF

pith:2017:K4LI3JPFOEUR3BJ6N7PH3S6YZU

not attested not anchored not stored refs pending

Krylov methods for low-rank commuting generalized Sylvester equations

Davide Palitta, Elias Jarlebring, Emil Ringh, Giampaolo Mele

arxiv:1704.02167 v2 · 2017-04-07 · 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{K4LI3JPFOEUR3BJ6N7PH3S6YZU}

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	2026-05-17T23:43:18.644531Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

57168da5e571291d853e6fde7dcbd8cd3fadc5a8feeb67460964d9f968770006

Aliases

arxiv: 1704.02167 · arxiv_version: 1704.02167v2 · doi: 10.48550/arxiv.1704.02167 · pith_short_12: K4LI3JPFOEUR · pith_short_16: K4LI3JPFOEUR3BJ6 · pith_short_8: K4LI3JPF

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/K4LI3JPFOEUR3BJ6N7PH3S6YZU \
  | 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: 57168da5e571291d853e6fde7dcbd8cd3fadc5a8feeb67460964d9f968770006

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0226b92536d9c27872198fe5da2537593cb4f1c1db80d9f3dbf56c7f542aa457",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2017-04-07T10:12:36Z",
    "title_canon_sha256": "004a4e2dcae9135550b5b3575ec4789ca9da3d593ff1254e73d5485ae76a52d9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1704.02167",
    "kind": "arxiv",
    "version": 2
  }
}