Pith Number

pith:LJZOKYJV

pith:2019:LJZOKYJVXCX6YT4XCE2QAGB4DF

not attested not anchored not stored refs pending

Exact Good-Turing characterization of the two-parameter Poisson-Dirichlet superpopulation model

Annalisa Cerquetti

arxiv:1901.09665 v1 · 2019-01-28 · 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{LJZOKYJVXCX6YT4XCE2QAGB4DF}

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	2026-05-17T23:55:24.159433Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5a72e56135b8afec4f97113500183c1963b6e751cf706cf7231df7a877652ad0

Aliases

arxiv: 1901.09665 · arxiv_version: 1901.09665v1 · doi: 10.48550/arxiv.1901.09665 · pith_short_12: LJZOKYJVXCX6 · pith_short_16: LJZOKYJVXCX6YT4X · pith_short_8: LJZOKYJV

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/LJZOKYJVXCX6YT4XCE2QAGB4DF \
  | 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: 5a72e56135b8afec4f97113500183c1963b6e751cf706cf7231df7a877652ad0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ee9b11ba1ad1530758e407474b3be938969baf6968cf90c1fd3487cf47266f12",
    "cross_cats_sorted": [
      "stat.TH"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "math.ST",
    "submitted_at": "2019-01-28T14:19:16Z",
    "title_canon_sha256": "cb31d434c760b93c50448862dd2c18c6099877b9183e4a8e2c56d8b4d103d866"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1901.09665",
    "kind": "arxiv",
    "version": 1
  }
}