Pith Number

pith:LAI56Y5R

pith:2013:LAI56Y5RE7UMVKBM5KQRCR2MKR

not attested not anchored not stored refs pending

An efficient parallel immersed boundary algorithm using a pseudo-compressible fluid solver

Jeffrey K. Wiens, John M. Stockie

arxiv:1305.3976 v2 · 2013-05-17 · cs.DC · math.NA · 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{LAI56Y5RE7UMVKBM5KQRCR2MKR}

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	2026-05-18T02:28:32.060007Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5811df63b127e8caa82ceaa111474c546d6e44a192a66a5f52b602b4812d1d93

Aliases

arxiv: 1305.3976 · arxiv_version: 1305.3976v2 · doi: 10.48550/arxiv.1305.3976 · pith_short_12: LAI56Y5RE7UM · pith_short_16: LAI56Y5RE7UMVKBM · pith_short_8: LAI56Y5R

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/LAI56Y5RE7UMVKBM5KQRCR2MKR \
  | 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: 5811df63b127e8caa82ceaa111474c546d6e44a192a66a5f52b602b4812d1d93

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "de2904c229694f33d4d4546f94b7739aa33ffeb4b5ad85f22923a42922b401a9",
    "cross_cats_sorted": [
      "math.NA",
      "physics.flu-dyn"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DC",
    "submitted_at": "2013-05-17T04:07:45Z",
    "title_canon_sha256": "36d49d0f87e5195b47855b3c790a20bb4148200d8efcefb9faa6048dda864bbc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1305.3976",
    "kind": "arxiv",
    "version": 2
  }
}