Pith Number

pith:5LKHMYW5

pith:2026:5LKHMYW5WAH4EJSL3IKDKUXLSZ

not attested not anchored not stored refs pending

Direct Data-Driven Linear Quadratic Tracking via Policy Optimization

Keyou You, Shubo Kang

arxiv:2605.15563 v1 · 2026-05-15 · eess.SY · 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{5LKHMYW5WAH4EJSL3IKDKUXLSZ}

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	2026-05-20T00:01:05.512231Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ead47662ddb00fc2264bda143552eb967d546a4339813503480416dabc76d878

Aliases

arxiv: 2605.15563 · arxiv_version: 2605.15563v1 · doi: 10.48550/arxiv.2605.15563 · pith_short_12: 5LKHMYW5WAH4 · pith_short_16: 5LKHMYW5WAH4EJSL · pith_short_8: 5LKHMYW5

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/5LKHMYW5WAH4EJSL3IKDKUXLSZ \
  | 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: ead47662ddb00fc2264bda143552eb967d546a4339813503480416dabc76d878

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "587f53d141323af12ff54212243fefdd030701b32d91c5baf7c3709f26f573a1",
    "cross_cats_sorted": [
      "cs.SY",
      "math.OC"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "eess.SY",
    "submitted_at": "2026-05-15T03:10:13Z",
    "title_canon_sha256": "b3cfbe790ea7026462cde74145a35269e9a3f8447fc162f5ad1624aa1045d1b4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2605.15563",
    "kind": "arxiv",
    "version": 1
  }
}