Pith Number

pith:FEUSRGRS

pith:2026:FEUSRGRSZFVLIFG4IFRPMUONCA

not attested not anchored not stored refs pending

A Sub-linear Low-Rank Solver for Poisson's Equation using Machine Learning Frameworks for GPU Acceleration

Daniel Appel\"o, M{\aa}ns I. Andersson

arxiv:2607.06021 v1 · 2026-07-07 · cs.PF · cs.NA · math.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{FEUSRGRSZFVLIFG4IFRPMUONCA}

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	2026-07-08T01:18:54.205396Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2929289a32c96ab414dc4162f651cd101352f4b074a0d081d1e46347a87bea32

Aliases

arxiv: 2607.06021 · arxiv_version: 2607.06021v1 · doi: 10.48550/arxiv.2607.06021 · pith_short_12: FEUSRGRSZFVL · pith_short_16: FEUSRGRSZFVLIFG4 · pith_short_8: FEUSRGRS

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/FEUSRGRSZFVLIFG4IFRPMUONCA \
  | 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: 2929289a32c96ab414dc4162f651cd101352f4b074a0d081d1e46347a87bea32

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4717f0914d211f148f9768b783753639e3a6a45c313c0a9485078897cf11b620",
    "cross_cats_sorted": [
      "cs.NA",
      "math.NA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.PF",
    "submitted_at": "2026-07-07T09:02:06Z",
    "title_canon_sha256": "74760c887a795fc5f6ae33f753aa6ef02f0891856e2c8f76d828857a956e2d94"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2607.06021",
    "kind": "arxiv",
    "version": 1
  }
}