Pith Number

pith:UTXFRZLA

pith:2021:UTXFRZLA5LT735I7F5DOW5EXXQ

not attested not anchored not stored refs pending

Optimal Sampling Density for Nonparametric Regression

Danny Panknin, Klaus Robert M\"uller, Shinichi Nakajima

arxiv:2105.11990 v2 · 2021-05-25 · 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{UTXFRZLA5LT735I7F5DOW5EXXQ}

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	2026-07-05T03:00:18.496523Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a4ee58e560eae7fdf51f2f46eb7497bc15abc94ba8fc5371c1306155f1958eb0

Aliases

arxiv: 2105.11990 · arxiv_version: 2105.11990v2 · doi: 10.48550/arxiv.2105.11990 · pith_short_12: UTXFRZLA5LT7 · pith_short_16: UTXFRZLA5LT735I7 · pith_short_8: UTXFRZLA

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/UTXFRZLA5LT735I7F5DOW5EXXQ \
  | 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: a4ee58e560eae7fdf51f2f46eb7497bc15abc94ba8fc5371c1306155f1958eb0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0a1e3b2a1406a730b6f76d3814b1c4d0cce7ae55dbb525c558cf0b8d10962a5b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2021-05-25T14:52:17Z",
    "title_canon_sha256": "13bf781f60a937130872cfaf69a81e5798f03e0b5d9d67ff4508336370ddf10c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2105.11990",
    "kind": "arxiv",
    "version": 2
  }
}