Pith Number

pith:FF4KBULJ

pith:2019:FF4KBULJQ4BG6UYZUXRW7UAYJP

not attested not anchored not stored refs pending

Learning Linear Dynamical Systems with Semi-Parametric Least Squares

Benjamin Recht, Max Simchowitz, Ross Boczar

arxiv:1902.00768 v1 · 2019-02-02 · cs.LG · math.OC · math.ST · stat.ML · stat.TH

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{FF4KBULJQ4BG6UYZUXRW7UAYJP}

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	2026-05-17T23:54:52.223086Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2978a0d16987026f5319a5e36fd0184be9faff7534665d50153d70b5d59955b4

Aliases

arxiv: 1902.00768 · arxiv_version: 1902.00768v1 · doi: 10.48550/arxiv.1902.00768 · pith_short_12: FF4KBULJQ4BG · pith_short_16: FF4KBULJQ4BG6UYZ · pith_short_8: FF4KBULJ

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/FF4KBULJQ4BG6UYZUXRW7UAYJP \
  | 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: 2978a0d16987026f5319a5e36fd0184be9faff7534665d50153d70b5d59955b4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5441b9ce3a49899226bbd7f5ae2b0ad4b1cde166d81d07c249c95eb7de22610c",
    "cross_cats_sorted": [
      "math.OC",
      "math.ST",
      "stat.ML",
      "stat.TH"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2019-02-02T19:06:28Z",
    "title_canon_sha256": "5fdded1189142c59488cadae2a8c98247566af000435733dbcde01c617b032be"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1902.00768",
    "kind": "arxiv",
    "version": 1
  }
}