Pith Number

pith:H5HRHFOY

pith:2018:H5HRHFOYGSSJBIHIY2JO7UHTP2

not attested not anchored not stored refs pending

On local Fourier analysis of multigrid methods for PDEs with jumping and random coefficients

Carmen Rodrigo, Cornelis W. Oosterlee, Francisco J. Gaspar, Prashant Kumar

arxiv:1803.08864 v2 · 2018-03-14 · math.NA · math.AP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{H5HRHFOYGSSJBIHIY2JO7UHTP2}

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	2026-05-17T23:52:53.252022Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3f4f1395d834a490a0e8c692efd0f37ea49ee5b19d8ad3b5ec892b1782cc7ef8

Aliases

arxiv: 1803.08864 · arxiv_version: 1803.08864v2 · doi: 10.48550/arxiv.1803.08864 · pith_short_12: H5HRHFOYGSSJ · pith_short_16: H5HRHFOYGSSJBIHI · pith_short_8: H5HRHFOY

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/H5HRHFOYGSSJBIHIY2JO7UHTP2 \
  | 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: 3f4f1395d834a490a0e8c692efd0f37ea49ee5b19d8ad3b5ec892b1782cc7ef8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "733dd295899db8c813ae9c852d784f067a66b2cd156c0bddc9656eaf78434c1a",
    "cross_cats_sorted": [
      "math.AP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2018-03-14T14:01:22Z",
    "title_canon_sha256": "6b90100e3a36039630f95de6e0b36485cdd23ca8e782c1ca1d5f202680751ccc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1803.08864",
    "kind": "arxiv",
    "version": 2
  }
}