Pith Number

pith:DG7THP5Z

pith:2019:DG7THP5Z5RD7EYEO3GVT5A7ZSN

not attested not anchored not stored refs pending

Finite-time Analysis of Approximate Policy Iteration for the Linear Quadratic Regulator

Benjamin Recht, Karl Krauth, Stephen Tu

arxiv:1905.12842 v1 · 2019-05-30 · cs.LG · math.OC · stat.ML

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{DG7THP5Z5RD7EYEO3GVT5A7ZSN}

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	2026-05-17T23:44:39.509722Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

19bf33bfb9ec47f2608ed9ab3e83f99366c1c865e640b89bd56149ec916db040

Aliases

arxiv: 1905.12842 · arxiv_version: 1905.12842v1 · doi: 10.48550/arxiv.1905.12842 · pith_short_12: DG7THP5Z5RD7 · pith_short_16: DG7THP5Z5RD7EYEO · pith_short_8: DG7THP5Z

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/DG7THP5Z5RD7EYEO3GVT5A7ZSN \
  | 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: 19bf33bfb9ec47f2608ed9ab3e83f99366c1c865e640b89bd56149ec916db040

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4e503816fd8a58ca4c221d6363db2f4f0da226887805646704c355db32ce5959",
    "cross_cats_sorted": [
      "math.OC",
      "stat.ML"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2019-05-30T03:36:40Z",
    "title_canon_sha256": "c54bd11d79ea941d582af645bc0a9af21f5693ab9df39437ac12fd83a21b4bc7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1905.12842",
    "kind": "arxiv",
    "version": 1
  }
}