Pith Number

pith:NK7N2XLE

pith:2017:NK7N2XLE2FGQ5CVK2RLHZENEY7

not attested not anchored not stored refs pending

Robust Optimization Approaches for the Design of an Electric Machine

Oliver Lass, Oliver Rain, Sebastian Sch\"ops, Stefan Ulbrich, Zeger Bontinck

arxiv:1712.01536 v2 · 2017-12-05 · 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{NK7N2XLE2FGQ5CVK2RLHZENEY7}

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	2026-05-18T00:08:54.901501Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6abedd5d64d14d0e8aaad4567c91a4c7fbd4787c1b0e0ea3c822c317ac43b202

Aliases

arxiv: 1712.01536 · arxiv_version: 1712.01536v2 · doi: 10.48550/arxiv.1712.01536 · pith_short_12: NK7N2XLE2FGQ · pith_short_16: NK7N2XLE2FGQ5CVK · pith_short_8: NK7N2XLE

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/NK7N2XLE2FGQ5CVK2RLHZENEY7 \
  | 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: 6abedd5d64d14d0e8aaad4567c91a4c7fbd4787c1b0e0ea3c822c317ac43b202

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "72abecc943462cdb0b345ae224b54ba730977d4a864bd32a18d024e351fef301",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2017-12-05T09:22:59Z",
    "title_canon_sha256": "e8004d742d16ec6b3b9836ad977432e6aebddd5d11f6973a503b8590c670049f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1712.01536",
    "kind": "arxiv",
    "version": 2
  }
}