Pith Number

pith:FEEE4UNL

pith:2018:FEEE4UNLVRQJX5XWGCBTGJZJZ6

not attested not anchored not stored refs pending

Thin or bulky: optimal aspect ratios for ship hulls

Christophe Clanet, Jean-Philippe Boucher, Michael Benzaquen, Romain Labb\'e

arxiv:1803.10695 v2 · 2018-03-28 · 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{FEEE4UNLVRQJX5XWGCBTGJZJZ6}

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	2026-05-18T00:08:42.790629Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

29084e51abac609bf6f63083332729cfb1452aae6d33a829e897ef8eade4fd61

Aliases

arxiv: 1803.10695 · arxiv_version: 1803.10695v2 · doi: 10.48550/arxiv.1803.10695 · pith_short_12: FEEE4UNLVRQJ · pith_short_16: FEEE4UNLVRQJX5XW · pith_short_8: FEEE4UNL

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/FEEE4UNLVRQJX5XWGCBTGJZJZ6 \
  | 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: 29084e51abac609bf6f63083332729cfb1452aae6d33a829e897ef8eade4fd61

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4c81d62ad7ae3e6378dc0241b2a985d85ef74cf451b45ec73498e7d83d4c4594",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.flu-dyn",
    "submitted_at": "2018-03-28T15:51:41Z",
    "title_canon_sha256": "f09a73dc55873033a389b770e757c00a792c4d8c9b426d34ca72c7c1fb453568"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1803.10695",
    "kind": "arxiv",
    "version": 2
  }
}