Pith Number

pith:66D7JAO5

pith:2018:66D7JAO5JVHNKKXY5PEV2RI6MV

not attested not anchored not stored refs pending

The Expected Parameter Change (EPC) for Local Dependence Assessment in Binary Data Latent Class Models

Daniel L. Oberski, Jeroen K. Vermunt

arxiv:1801.02400 v1 · 2018-01-08 · 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{66D7JAO5JVHNKKXY5PEV2RI6MV}

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	2026-05-18T00:26:31.734417Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f787f481dd4d4ed52af8ebc95d451e656b41bb3dfcf7517d2f50bec1519c16c2

Aliases

arxiv: 1801.02400 · arxiv_version: 1801.02400v1 · doi: 10.48550/arxiv.1801.02400 · pith_short_12: 66D7JAO5JVHN · pith_short_16: 66D7JAO5JVHNKKXY · pith_short_8: 66D7JAO5

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/66D7JAO5JVHNKKXY5PEV2RI6MV \
  | 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: f787f481dd4d4ed52af8ebc95d451e656b41bb3dfcf7517d2f50bec1519c16c2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fa0d52d6b3e247e11b88549e5e87cd23e02016e12957b899cb42d3c1da20c3ec",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "stat.ME",
    "submitted_at": "2018-01-08T12:31:12Z",
    "title_canon_sha256": "838092f5b2c49f4a058d449dd554238260e69051d7fa2c920091c7d70413f303"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1801.02400",
    "kind": "arxiv",
    "version": 1
  }
}