Pith Number

pith:IPRXTFVG

pith:2025:IPRXTFVG5V5XP3UEDSDGABU3IW

not attested not anchored not stored refs pending

Optimal scheduling of interim analyses in group sequential trials

Laurent Billot, Suzie Cro, Zhangyi He

arxiv:2509.05537 v1 · 2025-09-05 · stat.ME · 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{IPRXTFVG5V5XP3UEDSDGABU3IW}

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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 Bayesian predictive framework for adaptive interim-analysis timing with robust borrowing in confirmatory trials

Receipt and verification

First computed	2026-07-05T12:05:49.436366Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

43e37996a6ed7b77ee841c8660069b458de84fd59e98f49fbb536a56cf6bc903

Aliases

arxiv: 2509.05537 · arxiv_version: 2509.05537v1 · doi: 10.48550/arxiv.2509.05537 · pith_short_12: IPRXTFVG5V5X · pith_short_16: IPRXTFVG5V5XP3UE · pith_short_8: IPRXTFVG

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/IPRXTFVG5V5XP3UEDSDGABU3IW \
  | 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: 43e37996a6ed7b77ee841c8660069b458de84fd59e98f49fbb536a56cf6bc903

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e28bb96743efccc0c545331d90303b05ae3a56f0a8789cd6bd28f4e44b12fced",
    "cross_cats_sorted": [
      "stat.AP"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "stat.ME",
    "submitted_at": "2025-09-05T23:24:56Z",
    "title_canon_sha256": "5182b628c0de7712d7a10a1eab43b588b3de46ae2ab8edea542da2a6ce4cf89a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2509.05537",
    "kind": "arxiv",
    "version": 1
  }
}