Pith Number

pith:2Q4LRA7L

pith:2018:2Q4LRA7LVGYLLVU5WYLEOZV3IP

not attested not anchored not stored refs pending

Parameter Recovery with Marginal Maximum Likelihood and Markov Chain Monte Carlo Estimation for the Generalized Partial Credit Model

Yong Luo

arxiv:1809.07359 v1 · 2018-09-19 · 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{2Q4LRA7LVGYLLVU5WYLEOZV3IP}

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	2026-05-18T00:05:18.684305Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d438b883eba9b0b5d69db6164766bb43feb3d9395065443833312287028a29a9

Aliases

arxiv: 1809.07359 · arxiv_version: 1809.07359v1 · doi: 10.48550/arxiv.1809.07359 · pith_short_12: 2Q4LRA7LVGYL · pith_short_16: 2Q4LRA7LVGYLLVU5 · pith_short_8: 2Q4LRA7L

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/2Q4LRA7LVGYLLVU5WYLEOZV3IP \
  | 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: d438b883eba9b0b5d69db6164766bb43feb3d9395065443833312287028a29a9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5d5dbc03623c87b68ca3f05c0d5a1828a637bbc8e9f8584c13250823e5b66d36",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "stat.AP",
    "submitted_at": "2018-09-19T18:26:29Z",
    "title_canon_sha256": "9c9a06aff8addd1ce2b2c8783cbcdf10df50be566268dd4b393a4743e8b7241a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1809.07359",
    "kind": "arxiv",
    "version": 1
  }
}