Pith Number

pith:33A4MILI

pith:2026:33A4MILI3EF6HCF42KJT7CO3GJ

not attested not anchored not stored refs pending

A performance portable fast Ewald summation for Stokes flow

Gabriel Kosmacher, George Biros, Joar Bagge, Ziyu Du

arxiv:2606.19059 v1 · 2026-06-17 · math.NA · cs.DC · 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{33A4MILI3EF6HCF42KJT7CO3GJ}

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	2026-06-19T16:11:55.615941Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

dec1c62168d90be388bcd2933f89db3273208c494395d475cf5c3f6f70054514

Aliases

arxiv: 2606.19059 · arxiv_version: 2606.19059v1 · doi: 10.48550/arxiv.2606.19059 · pith_short_12: 33A4MILI3EF6 · pith_short_16: 33A4MILI3EF6HCF4 · pith_short_8: 33A4MILI

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/33A4MILI3EF6HCF42KJT7CO3GJ \
  | 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: dec1c62168d90be388bcd2933f89db3273208c494395d475cf5c3f6f70054514

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4638294f5f472014b6a44e040136f7111c7720eee812f12fc6fb8a8c1854677a",
    "cross_cats_sorted": [
      "cs.DC",
      "cs.NA",
      "physics.comp-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2026-06-17T13:28:38Z",
    "title_canon_sha256": "4ffeddd6962d8b921bf2a533b42e7a611d14728a54a193542c5db3c4776bd158"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2606.19059",
    "kind": "arxiv",
    "version": 1
  }
}