Pith Number

pith:CMZ2BLAL

pith:2019:CMZ2BLALNEAOPUEFPFGRFN4XDO

not attested not anchored not stored refs pending

Smoothing Spline Semiparametric Density Models

Anna Liu, Jiahui Yu, Jian Shi, Yuedong Wang

arxiv:1901.03269 v1 · 2019-01-10 · 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{CMZ2BLALNEAOPUEFPFGRFN4XDO}

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	2026-05-17T23:56:34.911353Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1333a0ac0b6900e7d085794d12b7971b9916f683968c0faefc217a211a2f1c88

Aliases

arxiv: 1901.03269 · arxiv_version: 1901.03269v1 · doi: 10.48550/arxiv.1901.03269 · pith_short_12: CMZ2BLALNEAO · pith_short_16: CMZ2BLALNEAOPUEF · pith_short_8: CMZ2BLAL

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/CMZ2BLALNEAOPUEFPFGRFN4XDO \
  | 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: 1333a0ac0b6900e7d085794d12b7971b9916f683968c0faefc217a211a2f1c88

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0227b444546e4a34de71bbcbe9f774657c678ecb44e820d476da5ba05319da48",
    "cross_cats_sorted": [
      "stat.TH"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.ST",
    "submitted_at": "2019-01-10T16:56:09Z",
    "title_canon_sha256": "8a1350524f4d4113362dc5afc6f21a6c012517ae3896b4263c61e3a113586656"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1901.03269",
    "kind": "arxiv",
    "version": 1
  }
}