Pith Number

pith:IVSFFGC5

pith:2017:IVSFFGC5MDMWLZ2563TDZFADD7

not attested not anchored not stored refs pending

Fourier Method for Approximating Eigenvalues of Indefinite Stekloff Operator

Ludmil T Zikatanov, Yangqingxiang Wu

arxiv:1709.02351 v2 · 2017-09-07 · 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{IVSFFGC5MDMWLZ2563TDZFADD7}

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	2026-05-18T00:30:27.812270Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

456452985d60d965e75df6e63c94031fdec0759698d061e9f9c2a6c2a4b1b360

Aliases

arxiv: 1709.02351 · arxiv_version: 1709.02351v2 · doi: 10.48550/arxiv.1709.02351 · pith_short_12: IVSFFGC5MDMW · pith_short_16: IVSFFGC5MDMWLZ25 · pith_short_8: IVSFFGC5

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/IVSFFGC5MDMWLZ2563TDZFADD7 \
  | 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: 456452985d60d965e75df6e63c94031fdec0759698d061e9f9c2a6c2a4b1b360

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0f3d818238671e15863166ba3983ec942eb9f83f8c0ea942db4bfc82b391def5",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2017-09-07T16:52:43Z",
    "title_canon_sha256": "158a9521b0c8093a6dc33cec4eaef9037fa8f508f9a46887437f5a9cb6ecf4c1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1709.02351",
    "kind": "arxiv",
    "version": 2
  }
}