Pith Number

pith:5BX2ZQ2D

pith:2018:5BX2ZQ2DDXBRBTRZE75AU2OFD4

not attested not anchored not stored refs pending

On null hypotheses in survival analysis

Kjetil R{\o}ysland, Mats Julius Stensrud, P{\aa}l Christie Ryalen

arxiv:1807.00359 v2 · 2018-07-01 · 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{5BX2ZQ2DDXBRBTRZE75AU2OFD4}

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	2026-05-17T23:55:29.227241Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e86facc3431dc310ce3927fa0a69c51f1b1353fce7e87145d152235c1ae516d6

Aliases

arxiv: 1807.00359 · arxiv_version: 1807.00359v2 · doi: 10.48550/arxiv.1807.00359 · pith_short_12: 5BX2ZQ2DDXBR · pith_short_16: 5BX2ZQ2DDXBRBTRZ · pith_short_8: 5BX2ZQ2D

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/5BX2ZQ2DDXBRBTRZE75AU2OFD4 \
  | 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: e86facc3431dc310ce3927fa0a69c51f1b1353fce7e87145d152235c1ae516d6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "108bcc0e4bf1e7b9347b77fa2192fbb854fcdbffd284ea33d579ab161d6e6487",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "stat.ME",
    "submitted_at": "2018-07-01T17:18:27Z",
    "title_canon_sha256": "3d98c1c351b39b2c75b80b27a5cb736f097001458cad19bbfe61dfa6a0120155"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1807.00359",
    "kind": "arxiv",
    "version": 2
  }
}