Pith Number

pith:NU6DZ6DJ

pith:2013:NU6DZ6DJOVUIOSZ4WYSA44GDJK

not attested not anchored not stored refs pending

Removing batch effects for prediction problems with frozen surrogate variable analysis

H\'ector Corrada Bravo, Hilary S. Parker, Jeffrey T. Leek

arxiv:1301.3947 v1 · 2013-01-16 · stat.ME · stat.AP · stat.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{NU6DZ6DJOVUIOSZ4WYSA44GDJK}

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	2026-05-18T03:36:14.810440Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6d3c3cf8697568874b3cb6240e70c34aad24fba801eded4b88f10bc08f489f33

Aliases

arxiv: 1301.3947 · arxiv_version: 1301.3947v1 · doi: 10.48550/arxiv.1301.3947 · pith_short_12: NU6DZ6DJOVUI · pith_short_16: NU6DZ6DJOVUIOSZ4 · pith_short_8: NU6DZ6DJ

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/NU6DZ6DJOVUIOSZ4WYSA44GDJK \
  | 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: 6d3c3cf8697568874b3cb6240e70c34aad24fba801eded4b88f10bc08f489f33

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "16ec1a707a7e9e6b85b00856a387f7bf2dec6ab9136444f9ec59f039551be03d",
    "cross_cats_sorted": [
      "stat.AP",
      "stat.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "stat.ME",
    "submitted_at": "2013-01-16T23:16:02Z",
    "title_canon_sha256": "fed68298282861b1520daa15ed310d9c8f1240e77dce76aee08a9ac6e1ee13e0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1301.3947",
    "kind": "arxiv",
    "version": 1
  }
}