Pith Number

pith:EJNBDJTI

pith:2021:EJNBDJTIQUE2PZAPWHHC2HSXVW

not attested not anchored not stored refs pending

The Mixed-Observable Constrained Linear Quadratic Regulator Problem: the Exact Solution and Practical Algorithms

Aaron D. Ames, Masahiro Ono, Shreyansh Daftry, Ugo Rosolia, Yisong Yue, Yuxiao Chen

arxiv:2108.12030 v4 · 2021-08-26 · 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{EJNBDJTIQUE2PZAPWHHC2HSXVW}

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	2026-07-05T05:17:23.820477Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

225a11a6688509a7e40fb1ce2d1e57adb979ab4cee67e507e323ae614e46d1de

Aliases

arxiv: 2108.12030 · arxiv_version: 2108.12030v4 · doi: 10.48550/arxiv.2108.12030 · pith_short_12: EJNBDJTIQUE2 · pith_short_16: EJNBDJTIQUE2PZAP · pith_short_8: EJNBDJTI

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/EJNBDJTIQUE2PZAPWHHC2HSXVW \
  | 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: 225a11a6688509a7e40fb1ce2d1e57adb979ab4cee67e507e323ae614e46d1de

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "84ff5d1e63865ba15ed17cc646076ea1298a6a029c3d8d019ddf3fa9ce999914",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2021-08-26T20:44:19Z",
    "title_canon_sha256": "6f1b20a1833f34508dd0ea90436a394cfdf117e2a93fa7e275764002857df075"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2108.12030",
    "kind": "arxiv",
    "version": 4
  }
}