Pith Number

pith:SVT5XEEI

pith:2026:SVT5XEEIVQ3J4HTCA63FGGZDSH

not attested not anchored not stored refs pending

Acceleration of an algebraic multigrid pressure solver using graph neural networks

Artur K. Lidtke, Bernat Font, Eric Chill\'on, Nguyen Anh Khoa Doan

arxiv:2606.19251 v1 · 2026-06-17 · physics.comp-ph · cs.LG · physics.flu-dyn

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{SVT5XEEIVQ3J4HTCA63FGGZDSH}

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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	2026-06-19T16:12:08.818394Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9567db9088ac369e1e6207b6531b2391dd68cccb9da3226a4dcf6d3977edc8e1

Aliases

arxiv: 2606.19251 · arxiv_version: 2606.19251v1 · doi: 10.48550/arxiv.2606.19251 · pith_short_12: SVT5XEEIVQ3J · pith_short_16: SVT5XEEIVQ3J4HTC · pith_short_8: SVT5XEEI

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/SVT5XEEIVQ3J4HTCA63FGGZDSH \
  | 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: 9567db9088ac369e1e6207b6531b2391dd68cccb9da3226a4dcf6d3977edc8e1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "836242040728e642da281f58ed76a0d3654619bb59526e84e20bfbafc57f02b6",
    "cross_cats_sorted": [
      "cs.LG",
      "physics.flu-dyn"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.comp-ph",
    "submitted_at": "2026-06-17T16:27:28Z",
    "title_canon_sha256": "330a42fb220449687eed69572e9bd89b1459034f121a354df4ad47c678725c42"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2606.19251",
    "kind": "arxiv",
    "version": 1
  }
}