Pith Number

pith:2FO4OJJP

pith:2026:2FO4OJJPRT42F565T464DB3K6O

not attested not anchored not stored refs pending

Regularized Machine Learning for System Identification of Ship Free-Running Manoeuvres from CFD-Based Synthetic Data: A Comparative Study

J.C. Berndt, M. Abdel-Maksoud, R.F. Su\'arez

arxiv:2606.17121 v1 · 2026-06-15 · stat.AP · cs.LG · 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{2FO4OJJPRT42F565T464DB3K6O}

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	2026-06-19T16:10:03.657029Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d15dc7252f8cf9a2f7dd9f3dc1876af383cc698883537b7502dd9781ea5d9267

Aliases

arxiv: 2606.17121 · arxiv_version: 2606.17121v1 · doi: 10.48550/arxiv.2606.17121 · pith_short_12: 2FO4OJJPRT42 · pith_short_16: 2FO4OJJPRT42F565 · pith_short_8: 2FO4OJJP

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/2FO4OJJPRT42F565T464DB3K6O \
  | 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: d15dc7252f8cf9a2f7dd9f3dc1876af383cc698883537b7502dd9781ea5d9267

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "91292f612fa8977ab66d3841d0ece3d1f2753f91e779cf390e142729ebb26561",
    "cross_cats_sorted": [
      "cs.LG",
      "physics.flu-dyn"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "stat.AP",
    "submitted_at": "2026-06-15T12:42:29Z",
    "title_canon_sha256": "e3ec38a4d6efe130c2bfb196eed101fe48d5b12d56a7433161583eaf2000e389"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2606.17121",
    "kind": "arxiv",
    "version": 1
  }
}