Pith Number

pith:Q4UJDDCW

pith:2026:Q4UJDDCWWTA6HEXSWMOVYHJS7G

not attested not anchored not stored refs pending

Solver Exactness, Learned Flexibility: Equivariant Boundary-Correction Operators for Stokes Flow

Denis Gueyffier (Direction Scientifique G\'en\'erale, France), Institut Polytechnique de Paris, ONERA, Palaiseau

arxiv:2606.25075 v1 · 2026-06-23 · physics.flu-dyn · 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{Q4UJDDCWWTA6HEXSWMOVYHJS7G}

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	2026-06-25T00:18:17.040218Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8728918c56b4c1e392f2b31d5c1d32f9ae3cc91f6bc5a3228d99b9eb14b1d2da

Aliases

arxiv: 2606.25075 · arxiv_version: 2606.25075v1 · doi: 10.48550/arxiv.2606.25075 · pith_short_12: Q4UJDDCWWTA6 · pith_short_16: Q4UJDDCWWTA6HEXS · pith_short_8: Q4UJDDCW

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/Q4UJDDCWWTA6HEXSWMOVYHJS7G \
  | 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: 8728918c56b4c1e392f2b31d5c1d32f9ae3cc91f6bc5a3228d99b9eb14b1d2da

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "79e51a0a8fa4096e812f932c346a8a7aa7862377f01418e9ef2bee420c31215b",
    "cross_cats_sorted": [
      "cs.NA",
      "math.NA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.flu-dyn",
    "submitted_at": "2026-06-23T18:32:42Z",
    "title_canon_sha256": "52956e0ae6beb58a1b2174386a1c6494fa9054c8fc6b1799ff782c231dce64e2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2606.25075",
    "kind": "arxiv",
    "version": 1
  }
}