Pith Number

pith:KBB73XL2

pith:2023:KBB73XL25ERIGP5UZFPVOG5UDQ

not attested not anchored not stored refs pending

A Generalization of the Riccati Recursion for Equality-Constrained Linear Quadratic Optimal Control

Joris De Schutter, Lander Vanroye, Wilm Decr\'e

arxiv:2302.14836 v4 · 2023-02-28 · 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{KBB73XL25ERIGP5UZFPVOG5UDQ}

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	2026-07-05T09:54:42.396251Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5043fddd7ae922833fb4c95f571bb41c1b3884cf22aac6b8ec9f42ae775cbdf6

Aliases

arxiv: 2302.14836 · arxiv_version: 2302.14836v4 · doi: 10.48550/arxiv.2302.14836 · pith_short_12: KBB73XL25ERI · pith_short_16: KBB73XL25ERIGP5U · pith_short_8: KBB73XL2

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/KBB73XL25ERIGP5UZFPVOG5UDQ \
  | 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: 5043fddd7ae922833fb4c95f571bb41c1b3884cf22aac6b8ec9f42ae775cbdf6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5a2097c965c5e51241b6a0c07261811257f3cfb0c396be0eb9ed0b62ea242c62",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2023-02-28T18:34:39Z",
    "title_canon_sha256": "4dd16e615c92cae72f91e0966210b959e41e47098805e19fa4803b16f9f78558"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2302.14836",
    "kind": "arxiv",
    "version": 4
  }
}