Pith Number

pith:ON7UQWNU

pith:2019:ON7UQWNUVUBN3BZ6HAFUUZHREW

not attested not anchored not stored refs pending

lpdensity: Local Polynomial Density Estimation and Inference

Matias D. Cattaneo, Michael Jansson, Xinwei Ma

arxiv:1906.06529 v3 · 2019-06-15 · stat.CO · econ.EM · stat.AP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ON7UQWNUVUBN3BZ6HAFUUZHREW}

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	2026-07-05T02:17:07.123684Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

737f4859b4ad02dd873e380b4a64f1258e4cb094a27b330172203361e525936f

Aliases

arxiv: 1906.06529 · arxiv_version: 1906.06529v3 · doi: 10.48550/arxiv.1906.06529 · pith_short_12: ON7UQWNUVUBN · pith_short_16: ON7UQWNUVUBN3BZ6 · pith_short_8: ON7UQWNU

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/ON7UQWNUVUBN3BZ6HAFUUZHREW \
  | 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: 737f4859b4ad02dd873e380b4a64f1258e4cb094a27b330172203361e525936f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "75877155dd5e1155f3276d0963ef76408686ea769d7d5ab36d9665bb76211e0a",
    "cross_cats_sorted": [
      "econ.EM",
      "stat.AP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "stat.CO",
    "submitted_at": "2019-06-15T11:26:21Z",
    "title_canon_sha256": "2fc675ff9ca647e9345f43deb597a16320a208a55ba5d7a70faab936f8fe0464"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1906.06529",
    "kind": "arxiv",
    "version": 3
  }
}