Pith Number

pith:BRD452V3

pith:2015:BRD452V3OC56FJNCRIGIXJCFAR

not attested not anchored not stored refs pending

On the use of Harrell's C for clinical risk prediction via random survival forests

Andreas Ziegler, Marvin Wright, Matthias Schmid

arxiv:1507.03092 v2 · 2015-07-11 · stat.ML

Open paper page JSON Open Graph Bundle Merged state What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{BRD452V3OC56FJNCRIGIXJCFAR}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more

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	2026-05-18T01:10:55.483980Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0c47ceeabb70bbe2a5a28a0c8ba445046bd2a19631d8904b46f0726b8307b8b4

Aliases

arxiv: 1507.03092 · arxiv_version: 1507.03092v2 · doi: 10.48550/arxiv.1507.03092 · pith_short_12: BRD452V3OC56 · pith_short_16: BRD452V3OC56FJNC · pith_short_8: BRD452V3

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/BRD452V3OC56FJNCRIGIXJCFAR \
  | 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: 0c47ceeabb70bbe2a5a28a0c8ba445046bd2a19631d8904b46f0726b8307b8b4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "82553c2e6e2e8a9ad2a3c1d5b01c3fc6b6c1d303d48aac7996d7ca06473cf0f1",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "stat.ML",
    "submitted_at": "2015-07-11T10:31:50Z",
    "title_canon_sha256": "e2e653c67181dd5c1ce0646831d2ec27f04a30906931717bf3d291ec5f19f5a1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1507.03092",
    "kind": "arxiv",
    "version": 2
  }
}