Pith Number

pith:463EWGRO

pith:2026:463EWGRO6I2ZWGN64HDFNMHQTO

not attested not anchored not stored refs pending

Linear convergence of iterative contour integral-based eigensolvers for nonlinear eigenvalue problems

Daniel Kressner, Jose E. Roman, Meiyue Shao, Nian Shao, Yuqi Liu

arxiv:2606.13357 v1 · 2026-06-11 · 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{463EWGRO6I2ZWGN64HDFNMHQTO}

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	2026-06-12T01:09:57.164151Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e7b64b1a2ef2359b19bee1c656b0f09ba3f6b148b06641012a5de504703924d2

Aliases

arxiv: 2606.13357 · arxiv_version: 2606.13357v1 · doi: 10.48550/arxiv.2606.13357 · pith_short_12: 463EWGRO6I2Z · pith_short_16: 463EWGRO6I2ZWGN6 · pith_short_8: 463EWGRO

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/463EWGRO6I2ZWGN64HDFNMHQTO \
  | 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: e7b64b1a2ef2359b19bee1c656b0f09ba3f6b148b06641012a5de504703924d2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "215264391eef9f87f6a576447028e6836de5b467c383305209e941f6f528e47d",
    "cross_cats_sorted": [
      "cs.NA"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2026-06-11T13:45:14Z",
    "title_canon_sha256": "4230649155e474d498a0ead8649d563a7cd66fff72c7e543d46ea32a93e027ce"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2606.13357",
    "kind": "arxiv",
    "version": 1
  }
}