Pith Number

pith:3Q5EXTBI

pith:2024:3Q5EXTBIDVWYO4X34GPBVAOVM4

not attested not anchored not stored refs pending

Coarse Spaces Based on Higher-Order Interpolation for Schwarz Preconditioners for Helmholtz Problems

Alexander Heinlein, Cornelis Vuik, Erik Sieburgh, Vandana Dwarka

arxiv:2408.03571 v1 · 2024-08-07 · math.NA · cs.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{3Q5EXTBIDVWYO4X34GPBVAOVM4}

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	2026-07-05T08:53:00.402401Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

dc3a4bcc281d6d8772fbe19e1a81d56734bf057b680964397115314dab5b6ce9

Aliases

arxiv: 2408.03571 · arxiv_version: 2408.03571v1 · doi: 10.48550/arxiv.2408.03571 · pith_short_12: 3Q5EXTBIDVWY · pith_short_16: 3Q5EXTBIDVWYO4X3 · pith_short_8: 3Q5EXTBI

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/3Q5EXTBIDVWYO4X34GPBVAOVM4 \
  | 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: dc3a4bcc281d6d8772fbe19e1a81d56734bf057b680964397115314dab5b6ce9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "79b60bc30760782344d6f2d250e3d1741f84aea8eae1432e9ff9146409ce3c17",
    "cross_cats_sorted": [
      "cs.NA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2024-08-07T06:15:51Z",
    "title_canon_sha256": "d3c27e210db6f01fc1783f485e25f8763ea8aafd030ffcc9279acba69e364589"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2408.03571",
    "kind": "arxiv",
    "version": 1
  }
}