Pith Number

pith:ZHGTQCCL

pith:2018:ZHGTQCCLU4PWWOOACBO45ZUA6Y

not attested not anchored not stored refs pending

A constrained regression model for an ordinal response with ordinal predictors

Christian Hennig, Javier Espinosa

arxiv:1804.08715 v1 · 2018-04-23 · stat.ME

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ZHGTQCCLU4PWWOOACBO45ZUA6Y}

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	2026-05-18T00:17:46.854801Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c9cd38084ba71f6b39c0105dcee680f6144deaf958efb6720d68988d2e839778

Aliases

arxiv: 1804.08715 · arxiv_version: 1804.08715v1 · doi: 10.48550/arxiv.1804.08715 · pith_short_12: ZHGTQCCLU4PW · pith_short_16: ZHGTQCCLU4PWWOOA · pith_short_8: ZHGTQCCL

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/ZHGTQCCLU4PWWOOACBO45ZUA6Y \
  | 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: c9cd38084ba71f6b39c0105dcee680f6144deaf958efb6720d68988d2e839778

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fe7172c451be587dc37e84b42e2f70c332a6b87ed407944067b1c788cd792f13",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "stat.ME",
    "submitted_at": "2018-04-23T20:17:00Z",
    "title_canon_sha256": "9abb85766f523d51c226c420642f2a261b0b475b4e901be43daf16beb1bb35ad"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1804.08715",
    "kind": "arxiv",
    "version": 1
  }
}