Pith Number

pith:WIDJBADT

pith:2026:WIDJBADTG3EMMOF6XK7MA6G22M

not attested not anchored not stored refs pending

Convergence analysis of a nonlinear eigensolver based on rational approximation of the resolvent

Nian Shao, Yuji Nakatsukasa

arxiv:2607.10377 v1 · 2026-07-11 · 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{WIDJBADTG3EMMOF6XK7MA6G22M}

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	2026-07-14T01:21:12.755746Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b20690807336c8c638bebabec078dad3365f588f6de228ed85a7ee9376d508da

Aliases

arxiv: 2607.10377 · arxiv_version: 2607.10377v1 · doi: 10.48550/arxiv.2607.10377 · pith_short_12: WIDJBADTG3EM · pith_short_16: WIDJBADTG3EMMOF6 · pith_short_8: WIDJBADT

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/WIDJBADTG3EMMOF6XK7MA6G22M \
  | 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: b20690807336c8c638bebabec078dad3365f588f6de228ed85a7ee9376d508da

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "36deb0991e0cabee2107b9c35e2ac182fff1b5ef9fd85080bc8e22c8d44d8697",
    "cross_cats_sorted": [
      "cs.NA"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2026-07-11T16:09:14Z",
    "title_canon_sha256": "c4e856a5fc7a07ed807cf5f0abf37a050bd5e2f06d067357757a47788f076f37"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2607.10377",
    "kind": "arxiv",
    "version": 1
  }
}