Pith Number

pith:2NW6LUIB

pith:2015:2NW6LUIBK2VVMDDUA265KACJSM

not attested not anchored not stored refs pending

On Degrees of Freedom of Projection Estimators with Applications to Multivariate Nonparametric Regression

Bodhisattva Sen, Qihang Lin, Xi Chen

arxiv:1509.01877 v4 · 2015-09-07 · 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{2NW6LUIBK2VVMDDUA265KACJSM}

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	2026-05-18T00:03:59.502777Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d36de5d10156ab560c7406bdd5004993175fa43f5a90730ab1aa67b01ff4037a

Aliases

arxiv: 1509.01877 · arxiv_version: 1509.01877v4 · doi: 10.48550/arxiv.1509.01877 · pith_short_12: 2NW6LUIBK2VV · pith_short_16: 2NW6LUIBK2VVMDDU · pith_short_8: 2NW6LUIB

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/2NW6LUIBK2VVMDDUA265KACJSM \
  | 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: d36de5d10156ab560c7406bdd5004993175fa43f5a90730ab1aa67b01ff4037a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "45dafa7e7c5a611c83bac67f1098d46ef727a36d240b89fdb64aed0c116f016b",
    "cross_cats_sorted": [
      "stat.TH"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.ST",
    "submitted_at": "2015-09-07T01:20:37Z",
    "title_canon_sha256": "62b933a48b66b7590570c17aff124ee0fb23bde37245dce256d644460561f65d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1509.01877",
    "kind": "arxiv",
    "version": 4
  }
}