Pith Number

pith:6FEFD4O6

pith:2015:6FEFD4O6WNM5DLS6DQPSAIPK73

not attested not anchored not stored refs pending

Shape optimization of an electric motor subject to nonlinear magnetostatics

Antoine Laurain, Houcine Meftahi, Kevin Sturm, Peter Gangl, Ulrich Langer

arxiv:1501.04752 v1 · 2015-01-20 · math.OC

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{6FEFD4O6WNM5DLS6DQPSAIPK73}

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	2026-05-18T00:02:22.734384Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f14851f1deb359d1ae5e1c1f2021eafef161158f181750c079d8633a92dc70c5

Aliases

arxiv: 1501.04752 · arxiv_version: 1501.04752v1 · doi: 10.48550/arxiv.1501.04752 · pith_short_12: 6FEFD4O6WNM5 · pith_short_16: 6FEFD4O6WNM5DLS6 · pith_short_8: 6FEFD4O6

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/6FEFD4O6WNM5DLS6DQPSAIPK73 \
  | 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: f14851f1deb359d1ae5e1c1f2021eafef161158f181750c079d8633a92dc70c5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "40e1c7c4be61daf1ebc640c22f1fb4d461f25b46aebf1a9e8a76d220d80183f4",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2015-01-20T10:17:48Z",
    "title_canon_sha256": "0561a4b76eebd34f39b65e5a6cdaf2445b819a67058d4f98a26042b70d51f8a6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1501.04752",
    "kind": "arxiv",
    "version": 1
  }
}