Pith Number

pith:JQKAUUA6

pith:2026:JQKAUUA64ZERTMR5FNDWIGWQVF

not attested not anchored not stored refs pending

Conditioning and backward errors for nonlinear eigenvalue problems with eigenvector nonlinearities

Elias Jarlebring, Karl Meerbergen, Victor Janssens, Vilhelm Peterson Lithell, Wim Michiels

arxiv:2605.20933 v1 · 2026-05-20 · math.NA · cs.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{JQKAUUA64ZERTMR5FNDWIGWQVF}

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	2026-05-21T01:05:28.817703Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4c140a501ee64919b23d2b47641ad0a956e72614d32e3fafd98d2898a3233cf1

Aliases

arxiv: 2605.20933 · arxiv_version: 2605.20933v1 · doi: 10.48550/arxiv.2605.20933 · pith_short_12: JQKAUUA64ZER · pith_short_16: JQKAUUA64ZERTMR5 · pith_short_8: JQKAUUA6

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/JQKAUUA64ZERTMR5FNDWIGWQVF \
  | 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: 4c140a501ee64919b23d2b47641ad0a956e72614d32e3fafd98d2898a3233cf1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "047017e04059d067938dbdd8e3a885f787edb636622ae1ec2996bdea58c5d117",
    "cross_cats_sorted": [
      "cs.NA"
    ],
    "license": "http://creativecommons.org/licenses/by-nc-nd/4.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2026-05-20T09:19:55Z",
    "title_canon_sha256": "498087f2270580ad41a97d5d08f9544049e7a75307b8e81462c16c90bc6c18d4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2605.20933",
    "kind": "arxiv",
    "version": 1
  }
}