Pith Number

pith:3XQXTQL4

pith:2021:3XQXTQL47EKZPLDXQMZG7ATJEL

not attested not anchored not stored refs pending

A comment and erratum on "Excess Optimism: How Biased is the Apparent Error of an Estimator Tuned by SURE?"

Alnur Ali, John Duchi, Maxime Cauchois

arxiv:2112.14353 v1 · 2021-12-29 · math.ST · 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{3XQXTQL47EKZPLDXQMZG7ATJEL}

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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	2026-07-05T03:44:21.443949Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

dde179c17cf91597ac7783326f826922ff3d49192352d4ec6190a6a686f07eb3

Aliases

arxiv: 2112.14353 · arxiv_version: 2112.14353v1 · doi: 10.48550/arxiv.2112.14353 · pith_short_12: 3XQXTQL47EKZ · pith_short_16: 3XQXTQL47EKZPLDX · pith_short_8: 3XQXTQL4

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/3XQXTQL47EKZPLDXQMZG7ATJEL \
  | 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: dde179c17cf91597ac7783326f826922ff3d49192352d4ec6190a6a686f07eb3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "12f7882c655cda19360e1ac234d84faceacdfb9bb46e0b4b6194463ad2c8bdeb",
    "cross_cats_sorted": [
      "stat.TH"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.ST",
    "submitted_at": "2021-12-29T01:17:44Z",
    "title_canon_sha256": "8f832482520c9e5230d775dff510a6ed2ccddc081e5b5dc65b3f6a1bcda20b17"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2112.14353",
    "kind": "arxiv",
    "version": 1
  }
}