Pith Number

pith:OGM6DWMQ

pith:2025:OGM6DWMQFSMFFYIS2NSSVKOL3R

not attested not anchored not stored refs pending

Jacobian-free Multigrid Preconditioner for Discontinuous Galerkin Methods applied to Numerical Weather Prediction

Andreas Dedner, Philipp Birken, Robert Kl\"ofkorn

arxiv:2505.24504 v1 · 2025-05-30 · math.NA · cs.NA · physics.comp-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{OGM6DWMQFSMFFYIS2NSSVKOL3R}

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	2026-07-05T11:12:51.276598Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7199e1d9902c9852e112d3652aa9cbdc785e4cdf68e3591b77d0eb36cb0b7a67

Aliases

arxiv: 2505.24504 · arxiv_version: 2505.24504v1 · doi: 10.48550/arxiv.2505.24504 · pith_short_12: OGM6DWMQFSMF · pith_short_16: OGM6DWMQFSMFFYIS · pith_short_8: OGM6DWMQ

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/OGM6DWMQFSMFFYIS2NSSVKOL3R \
  | 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: 7199e1d9902c9852e112d3652aa9cbdc785e4cdf68e3591b77d0eb36cb0b7a67

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9ac5e479ec59f97059515cbdc2bb670abe817082ac3e4f071d555c385148b29d",
    "cross_cats_sorted": [
      "cs.NA",
      "physics.comp-ph"
    ],
    "license": "http://creativecommons.org/licenses/by-sa/4.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2025-05-30T12:06:38Z",
    "title_canon_sha256": "8a8268373d50326be19844c33ed67db3a586872945cd2cc7e3ced529d441c18b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2505.24504",
    "kind": "arxiv",
    "version": 1
  }
}