Pith Number

pith:RCCOGUYF

pith:2009:RCCOGUYFQMC5NIVTDXDU2ZU7N7

not attested not anchored not stored refs pending

Geometric versus spectral convergence for the Neumann Laplacian under exterior perturbations of the domain

David Krejcirik, Jose M. Arrieta

arxiv:0901.4726 v1 · 2009-01-29 · 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{RCCOGUYFQMC5NIVTDXDU2ZU7N7}

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	2026-05-18T04:28:21.896220Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8884e353058305d6a2b31dc74d669f6fd209551db549ce8590df21ccde2db61a

Aliases

arxiv: 0901.4726 · arxiv_version: 0901.4726v1 · doi: 10.48550/arxiv.0901.4726 · pith_short_12: RCCOGUYFQMC5 · pith_short_16: RCCOGUYFQMC5NIVT · pith_short_8: RCCOGUYF

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/RCCOGUYFQMC5NIVTDXDU2ZU7N7 \
  | 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: 8884e353058305d6a2b31dc74d669f6fd209551db549ce8590df21ccde2db61a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6b1cc0bf1242d96b62920bae2495c6297435e8e18ead33d61001d8a22a7323f6",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.SP",
    "submitted_at": "2009-01-29T17:22:38Z",
    "title_canon_sha256": "dcf7dbe44ba56694b73a81b508ff7bc82aa9634c31b9e7f037251af1b979130d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0901.4726",
    "kind": "arxiv",
    "version": 1
  }
}