Pith Number

pith:TOT6RPLN

pith:2019:TOT6RPLN27P7U2MTOPSJ5MFWFZ

not attested not anchored not stored refs pending

A boundary integral equation approach to computing eigenvalues of the Stokes operator

Manas Rachh, Travis Askham

arxiv:1904.07351 v1 · 2019-04-15 · math.NA · math.AP · 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{TOT6RPLN27P7U2MTOPSJ5MFWFZ}

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	2026-05-17T23:48:28.827291Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9ba7e8bd6dd7dffa699373e49eb0b62e5312ef2829832b36450d9a75fadc17fe

Aliases

arxiv: 1904.07351 · arxiv_version: 1904.07351v1 · doi: 10.48550/arxiv.1904.07351 · pith_short_12: TOT6RPLN27P7 · pith_short_16: TOT6RPLN27P7U2MT · pith_short_8: TOT6RPLN

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/TOT6RPLN27P7U2MTOPSJ5MFWFZ \
  | 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: 9ba7e8bd6dd7dffa699373e49eb0b62e5312ef2829832b36450d9a75fadc17fe

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5928e8de9494645e87ae9da02da5dc67cc0ef3b7ab6ba9fe0bd36dbe847251b9",
    "cross_cats_sorted": [
      "math.AP",
      "math.SP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2019-04-15T22:31:14Z",
    "title_canon_sha256": "4e6e7672aaa074f8892f5b0341e948306519d250ab4909adbf0961cda3ffeb1f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1904.07351",
    "kind": "arxiv",
    "version": 1
  }
}