Pith Number

pith:IM4EJNR5

pith:2025:IM4EJNR5HX6KJVNKXFDCTQGFQY

not attested not anchored not stored refs pending

On the inclusion of non-concurrent controls in platform trials with an interim analysis

Marta Bofill Roig, Martin Posch, Pavla Krotka

arxiv:2509.08795 v2 · 2025-09-10 · 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{IM4EJNR5HX6KJVNKXFDCTQGFQY}

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	2026-05-21T01:04:16.599235Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

433844b63d3dfca4d5aab94629c0c586142eeedbc4ddb2c79b55471cadfb69b8

Aliases

arxiv: 2509.08795 · arxiv_version: 2509.08795v2 · doi: 10.48550/arxiv.2509.08795 · pith_short_12: IM4EJNR5HX6K · pith_short_16: IM4EJNR5HX6KJVNK · pith_short_8: IM4EJNR5

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/IM4EJNR5HX6KJVNKXFDCTQGFQY \
  | 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: 433844b63d3dfca4d5aab94629c0c586142eeedbc4ddb2c79b55471cadfb69b8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "964fcfd494411384cf04f9dda3d131f71c4270224f469c817c8bed9eabdaf170",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "stat.ME",
    "submitted_at": "2025-09-10T17:25:36Z",
    "title_canon_sha256": "804fb505e498e1b68152af11d0ee60afd39d329fb00d074a9396db3a041cae0d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2509.08795",
    "kind": "arxiv",
    "version": 2
  }
}