Pith Number

pith:RHHT25DJ

pith:2019:RHHT25DJEIADJP6OKKO7CE66AM

not attested not anchored not stored refs pending

Risk of the Least Squares Minimum Norm Estimator under the Spike Covariance Model

Yasaman Mahdaviyeh, Zacharie Naulet

arxiv:1912.13421 v2 · 2019-12-31 · stat.ML · cs.LG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{RHHT25DJEIADJP6OKKO7CE66AM}

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	2026-07-05T00:41:54.211523Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

89cf3d7469220034bfce529df113de0321cbb31a745c61b57cb9e628489c1b37

Aliases

arxiv: 1912.13421 · arxiv_version: 1912.13421v2 · doi: 10.48550/arxiv.1912.13421 · pith_short_12: RHHT25DJEIAD · pith_short_16: RHHT25DJEIADJP6O · pith_short_8: RHHT25DJ

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/RHHT25DJEIADJP6OKKO7CE66AM \
  | 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: 89cf3d7469220034bfce529df113de0321cbb31a745c61b57cb9e628489c1b37

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b7ec90af106af7d1403b2e3dd729831c14882f722052752babdb6a4636542ca3",
    "cross_cats_sorted": [
      "cs.LG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "stat.ML",
    "submitted_at": "2019-12-31T16:58:42Z",
    "title_canon_sha256": "eb2e55634f4e5e895fe200e5fa59ffa9c9c599e93a9b59bb1a1d7c5a536021b5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1912.13421",
    "kind": "arxiv",
    "version": 2
  }
}