Pith Number

pith:WU4PZSFT

pith:2014:WU4PZSFTCQY3MBF5I7LPQLKHNE

not attested not anchored not stored refs pending

Localized LQR Optimal Control

John C. Doyle, Nikolai Matni, Yuh-Shyang Wang

arxiv:1409.6404 v1 · 2014-09-23 · cs.SY · 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{WU4PZSFTCQY3MBF5I7LPQLKHNE}

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	2026-05-18T02:42:07.202249Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b538fcc8b31431b604bd47d6f82d476900fa97053e1df0f9ac710c0d01cc9aa3

Aliases

arxiv: 1409.6404 · arxiv_version: 1409.6404v1 · doi: 10.48550/arxiv.1409.6404 · pith_short_12: WU4PZSFTCQY3 · pith_short_16: WU4PZSFTCQY3MBF5 · pith_short_8: WU4PZSFT

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/WU4PZSFTCQY3MBF5I7LPQLKHNE \
  | 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: b538fcc8b31431b604bd47d6f82d476900fa97053e1df0f9ac710c0d01cc9aa3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4f8e55cc78c568e38d0f41495f547040241cc2097ab0edc85bc447b722a1e3fc",
    "cross_cats_sorted": [
      "math.OC"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.SY",
    "submitted_at": "2014-09-23T03:55:56Z",
    "title_canon_sha256": "364dd2563344cfbfa10038a8774a4bdbdeee369fe855834b7c351d2339468cac"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1409.6404",
    "kind": "arxiv",
    "version": 1
  }
}