Pith Number

pith:S2DCHJVZ

pith:2018:S2DCHJVZO4BPSW6XO7OFOYNF52

not attested not anchored not stored refs pending

An efficient shape parametrisation by free-form deformation enhanced by active subspace for hull hydrodynamic ship design problems in open source environment

Andrea Mola, Gianluigi Rozza, Marco Tezzele, Nicola Demo

arxiv:1801.06369 v2 · 2018-01-19 · 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{S2DCHJVZO4BPSW6XO7OFOYNF52}

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	2026-05-18T00:19:41.208764Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

968623a6b97702f95bd777dc5761a5ee9b1abe219c622f8168ffc89af6d81d38

Aliases

arxiv: 1801.06369 · arxiv_version: 1801.06369v2 · doi: 10.48550/arxiv.1801.06369 · pith_short_12: S2DCHJVZO4BP · pith_short_16: S2DCHJVZO4BPSW6X · pith_short_8: S2DCHJVZ

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/S2DCHJVZO4BPSW6XO7OFOYNF52 \
  | 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: 968623a6b97702f95bd777dc5761a5ee9b1abe219c622f8168ffc89af6d81d38

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f6a6e21d478c8ad68a708f7a59d41f8d03f8b64c00a86c546df34414a7a8f711",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2018-01-19T11:21:06Z",
    "title_canon_sha256": "b316648462aeff966f892dc9cbbd7462c27fe9c4057d3cd5b658893cb578ff9c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1801.06369",
    "kind": "arxiv",
    "version": 2
  }
}