Pith Number

pith:OSA2MZKI

pith:2013:OSA2MZKIAHZQAIXFHBRVSIIICP

not attested not anchored not stored refs pending

Asymptotic optimality and efficient computation of the leave-subject-out cross-validation

Ganggang Xu, Jianhua Z. Huang

arxiv:1302.4607 v1 · 2013-02-19 · math.ST · 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{OSA2MZKIAHZQAIXFHBRVSIIICP}

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	2026-05-18T03:33:12.757962Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7481a6654801f30022e5386359210813ee3b5fa1ac3a9c3d07d234cd46a4ce2e

Aliases

arxiv: 1302.4607 · arxiv_version: 1302.4607v1 · doi: 10.48550/arxiv.1302.4607 · pith_short_12: OSA2MZKIAHZQ · pith_short_16: OSA2MZKIAHZQAIXF · pith_short_8: OSA2MZKI

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/OSA2MZKIAHZQAIXFHBRVSIIICP \
  | 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: 7481a6654801f30022e5386359210813ee3b5fa1ac3a9c3d07d234cd46a4ce2e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "40be54edb386a8031ad7c69bd508fc392340cff3de1ef4817e79bffb41ea2d5a",
    "cross_cats_sorted": [
      "stat.TH"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.ST",
    "submitted_at": "2013-02-19T13:38:30Z",
    "title_canon_sha256": "2be4a57b27e964bb6352ad1b2684355fdb1ed605a17be149093225f33016b918"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1302.4607",
    "kind": "arxiv",
    "version": 1
  }
}