Pith Number

pith:FCWJY7JB

pith:2018:FCWJY7JBEGK3IWHZBTD5UHBZ4F

not attested not anchored not stored refs pending

A FFT-based finite-difference solver for massively-parallel direct numerical simulations of turbulent flows

Pedro Costa

arxiv:1802.10323 v4 · 2018-02-28 · 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{FCWJY7JBEGK3IWHZBTD5UHBZ4F}

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	2026-07-05T00:04:05.305757Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

28ac9c7d212195b458f90cc7da1c39e17b234771d37bffab3b85e52c01b85462

Aliases

arxiv: 1802.10323 · arxiv_version: 1802.10323v4 · doi: 10.48550/arxiv.1802.10323 · pith_short_12: FCWJY7JBEGK3 · pith_short_16: FCWJY7JBEGK3IWHZ · pith_short_8: FCWJY7JB

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/FCWJY7JBEGK3IWHZBTD5UHBZ4F \
  | 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: 28ac9c7d212195b458f90cc7da1c39e17b234771d37bffab3b85e52c01b85462

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5cff6af411e9c807a1bc95ea14cf4452c2ea3faf329037e2ec1af16dc514e308",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.flu-dyn",
    "submitted_at": "2018-02-28T09:31:38Z",
    "title_canon_sha256": "473ca4e450e33bbd9c720ebf7a26b44415fdca0b58a2f1f63db54024f4543143"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1802.10323",
    "kind": "arxiv",
    "version": 4
  }
}