Pith Number

pith:442P7W6C

pith:2014:442P7W6CV6CWXD37V3AQ7QIMKN

not attested not anchored not stored refs pending

Degrees of freedom for nonlinear least squares estimation

Alexander Sokol, Niels Richard Hansen

arxiv:1402.2997 v3 · 2014-02-12 · math.ST · stat.TH

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Add to your LaTeX paper

\usepackage{pith}
\pithnumber{442P7W6CV6CWXD37V3AQ7QIMKN}

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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

A tool to determine the degrees of freedom in tree-structured varying coefficient models

Receipt and verification

First computed	2026-05-18T02:31:30.085498Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e734ffdbc2af856b8f7faec10fc10c536734009f91e9debabc3fed20c1b64db7

Aliases

arxiv: 1402.2997 · arxiv_version: 1402.2997v3 · doi: 10.48550/arxiv.1402.2997 · pith_short_12: 442P7W6CV6CW · pith_short_16: 442P7W6CV6CWXD37 · pith_short_8: 442P7W6C

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/442P7W6CV6CWXD37V3AQ7QIMKN \
  | 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: e734ffdbc2af856b8f7faec10fc10c536734009f91e9debabc3fed20c1b64db7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "db605f09d174d698971c32cc30c382e4af8de6a75851954878112d36cf94f82d",
    "cross_cats_sorted": [
      "stat.TH"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.ST",
    "submitted_at": "2014-02-12T22:14:42Z",
    "title_canon_sha256": "ef8d2d4ebca5e09c134e7629e6bbb4988e494ace057488ea16849ebbbe872902"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1402.2997",
    "kind": "arxiv",
    "version": 3
  }
}