Pith Number

pith:ZPFVD2JY

pith:2026:ZPFVD2JY6XOBL6UVGXTBCFIPS7

not attested not anchored not stored refs pending

Efficient and Minimax Optimal In-context Nonparametric Regression with Transformers

Ioana Popescu, Michelle Ching, Nico Smith, Richard J. Samworth, Tianyi Ma, William G. Underwood

arxiv:2601.15014 v2 · 2026-01-21 · stat.ML · cs.LG · 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{ZPFVD2JY6XOBL6UVGXTBCFIPS7}

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.

Cited by

1 paper in Pith

Multi-Head Attention as Ensemble Nadaraya-Watson Estimation: Variance Reduction, Decorrelation, and Optimal Head Diversity

Receipt and verification

First computed	2026-05-20T02:05:39.944971Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cbcb51e938f5dc15fa9535e611150f97eb44f7f9d2a2f5df685f120a1f9b3956

Aliases

arxiv: 2601.15014 · arxiv_version: 2601.15014v2 · doi: 10.48550/arxiv.2601.15014 · pith_short_12: ZPFVD2JY6XOB · pith_short_16: ZPFVD2JY6XOBL6UV · pith_short_8: ZPFVD2JY

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/ZPFVD2JY6XOBL6UVGXTBCFIPS7 \
  | 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: cbcb51e938f5dc15fa9535e611150f97eb44f7f9d2a2f5df685f120a1f9b3956

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "71d918478ed46e6608bca5dd13dc24c8a4c97181e9126a346a9f2e48aa2c757d",
    "cross_cats_sorted": [
      "cs.LG",
      "math.ST",
      "stat.TH"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "stat.ML",
    "submitted_at": "2026-01-21T14:13:38Z",
    "title_canon_sha256": "3fd1ec32a7cbc7fff5adf123154904bd447c0601532c63672f2ccb74d9a452c2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2601.15014",
    "kind": "arxiv",
    "version": 2
  }
}