Pith Number

pith:THU26V3I

pith:2015:THU26V3IRGAGFKUQY4E5YSLLIX

not attested not anchored not stored refs pending

A Gradient Descent Approach to Optimal Coherent Quantum LQG Controller Design

Arash Kh. Sichani, Ian R. Petersen, Igor G. Vladimirov

arxiv:1502.00274 v1 · 2015-02-01 · quant-ph · cs.CE · 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{THU26V3IRGAGFKUQY4E5YSLLIX}

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	2026-05-18T02:28:06.307840Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

99e9af5768898062aa90c709dc496b45fb728c37ad0c52c14d3f304a26db2f53

Aliases

arxiv: 1502.00274 · arxiv_version: 1502.00274v1 · doi: 10.48550/arxiv.1502.00274 · pith_short_12: THU26V3IRGAG · pith_short_16: THU26V3IRGAGFKUQ · pith_short_8: THU26V3I

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/THU26V3IRGAGFKUQY4E5YSLLIX \
  | 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: 99e9af5768898062aa90c709dc496b45fb728c37ad0c52c14d3f304a26db2f53

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "40941e56b3306cbffc5b8e292646eaab2b409a2ea83bd13acda9b9f97acea343",
    "cross_cats_sorted": [
      "cs.CE",
      "cs.SY",
      "math.OC"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2015-02-01T15:45:37Z",
    "title_canon_sha256": "047fb90c64c254c8b72b288f95b2bc01b2de0d04c429a37751423af474b7e46a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1502.00274",
    "kind": "arxiv",
    "version": 1
  }
}