Pith Number

pith:WKEYWZQG

pith:2004:WKEYWZQGE5G5WLRKOWGB6BJS46

not attested not anchored not stored refs pending

Spectral Estimates and Non-Selfadjoint Perturbations of Spheroidal Wave Operators

Felix Finster, Harald Schmid

arxiv:math-ph/0405010 v4 · 2004-05-04 · math-ph · gr-qc · math.MP · math.SP

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{WKEYWZQGE5G5WLRKOWGB6BJS46}

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	2026-05-18T03:00:59.907960Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b2898b6606274ddb2e2a758c1f0532e7bf41145f755d68221ec6548f52029731

Aliases

arxiv: math-ph/0405010 · arxiv_version: math-ph/0405010v4 · doi: 10.48550/arxiv.math-ph/0405010 · pith_short_12: WKEYWZQGE5G5 · pith_short_16: WKEYWZQGE5G5WLRK · pith_short_8: WKEYWZQG

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/WKEYWZQGE5G5WLRKOWGB6BJS46 \
  | 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: b2898b6606274ddb2e2a758c1f0532e7bf41145f755d68221ec6548f52029731

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "674e0d08ab4e71dbafa78060acbebbf4fb9b1322907e9ba5a1374ccd2c5bbb10",
    "cross_cats_sorted": [
      "gr-qc",
      "math.MP",
      "math.SP"
    ],
    "license": "",
    "primary_cat": "math-ph",
    "submitted_at": "2004-05-04T14:47:36Z",
    "title_canon_sha256": "ee9589c749f24ee2f718341084deb9b57b888d3f163576d0d1b55b410c4d1c50"
  },
  "schema_version": "1.0",
  "source": {
    "id": "math-ph/0405010",
    "kind": "arxiv",
    "version": 4
  }
}