Pith Number

pith:EFTHLAK3

pith:2018:EFTHLAK3YD7RC6CP4CUFQEP3BA

not attested not anchored not stored refs pending

Fast Ewald summation for Green's functions of Stokes flow in a half-space

Anna-Karin Tornberg, Shriram Srinivasan

arxiv:1802.07844 v1 · 2018-02-21 · 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{EFTHLAK3YD7RC6CP4CUFQEP3BA}

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	2026-06-04T19:11:32.428534Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

216675815bc0ff11784fe0a85811fb080476746093ec963d154ced08cd5d1cba

Aliases

arxiv: 1802.07844 · arxiv_version: 1802.07844v1 · doi: 10.48550/arxiv.1802.07844 · pith_short_12: EFTHLAK3YD7R · pith_short_16: EFTHLAK3YD7RC6CP · pith_short_8: EFTHLAK3

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/EFTHLAK3YD7RC6CP4CUFQEP3BA \
  | 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: 216675815bc0ff11784fe0a85811fb080476746093ec963d154ced08cd5d1cba

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "70624206e4b2ce79383f31f1d9ebbd5cfa082d2316ed62e00f51c7777dc9409c",
    "cross_cats_sorted": [
      "cs.NA",
      "physics.comp-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2018-02-21T23:16:20Z",
    "title_canon_sha256": "1f0d987f8303df65cfb15b917303ba5cdec1de20d6f5cc7ed53d5c159c11f116"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1802.07844",
    "kind": "arxiv",
    "version": 1
  }
}