Pith Number

pith:VH5NYRDM

pith:2016:VH5NYRDMKGUHNBIKXLYPXM7TAF

not attested not anchored not stored refs pending

Optimal design of observational studies: overview and synthesis

Jarno Vanhatalo, Juha Karvanen, Kari Auranen, Samu M\"antyniemi, Sangita Kulathinal

arxiv:1609.08347 v3 · 2016-09-27 · math.ST · stat.ME · 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{VH5NYRDMKGUHNBIKXLYPXM7TAF}

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	2026-05-18T00:31:36.349056Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a9fadc446c51a876850abaf0fbb3f30156757dbff4155efbcbedcb81066168aa

Aliases

arxiv: 1609.08347 · arxiv_version: 1609.08347v3 · doi: 10.48550/arxiv.1609.08347 · pith_short_12: VH5NYRDMKGUH · pith_short_16: VH5NYRDMKGUHNBIK · pith_short_8: VH5NYRDM

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/VH5NYRDMKGUHNBIKXLYPXM7TAF \
  | 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: a9fadc446c51a876850abaf0fbb3f30156757dbff4155efbcbedcb81066168aa

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c6a707c478800ab7b8503f147cbe01e0ab71fb5afd0fe0bf322685d9dcba5c42",
    "cross_cats_sorted": [
      "stat.ME",
      "stat.TH"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.ST",
    "submitted_at": "2016-09-27T10:46:32Z",
    "title_canon_sha256": "0de58a814e6d339d62d0d077aaed6a4457edd8320643b6e26de9f88dfc4e3c40"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1609.08347",
    "kind": "arxiv",
    "version": 3
  }
}