Pith Number

pith:GC3BLYCL

pith:2012:GC3BLYCLSN63KEQQUUQHTP6ZGM

not attested not anchored not stored refs pending

Decay rate estimations for linear quadratic optimal regulators

Daniel Est\'evez, Dmitry Yakubovich

arxiv:1201.1786 v3 · 2012-01-09 · 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{GC3BLYCLSN63KEQQUUQHTP6ZGM}

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	2026-05-18T03:08:38.607378Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

30b615e04b937db51210a52079bfd9332af14911b26a4d2824914cd52cc6a6bf

Aliases

arxiv: 1201.1786 · arxiv_version: 1201.1786v3 · doi: 10.48550/arxiv.1201.1786 · pith_short_12: GC3BLYCLSN63 · pith_short_16: GC3BLYCLSN63KEQQ · pith_short_8: GC3BLYCL

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/GC3BLYCLSN63KEQQUUQHTP6ZGM \
  | 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: 30b615e04b937db51210a52079bfd9332af14911b26a4d2824914cd52cc6a6bf

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "21c624bc1e8abb968b94381ae9f134699930f26c049276887a1955b4a970f8df",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2012-01-09T14:46:23Z",
    "title_canon_sha256": "f79b676c68367d36532d9a1051998ea0900dcac4bbbd55080c9f1870a8238254"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1201.1786",
    "kind": "arxiv",
    "version": 3
  }
}