Pith Number

pith:X7UPUGQ4

pith:2015:X7UPUGQ4XZ5RO4DEFBWKKBZJD3

not attested not anchored not stored refs pending

Wishart Mechanism for Differentially Private Principal Components Analysis

Cong Xie, Wuxuan Jiang, Zhihua Zhang

arxiv:1511.05680 v2 · 2015-11-18 · cs.CR · cs.DS · stat.ML

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{X7UPUGQ4XZ5RO4DEFBWKKBZJD3}

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	2026-05-18T01:26:30.941053Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bfe8fa1a1cbe7b177064286ca507291ee8fa2d5d097b48de0f88bb92b245c305

Aliases

arxiv: 1511.05680 · arxiv_version: 1511.05680v2 · doi: 10.48550/arxiv.1511.05680 · pith_short_12: X7UPUGQ4XZ5R · pith_short_16: X7UPUGQ4XZ5RO4DE · pith_short_8: X7UPUGQ4

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/X7UPUGQ4XZ5RO4DEFBWKKBZJD3 \
  | 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: bfe8fa1a1cbe7b177064286ca507291ee8fa2d5d097b48de0f88bb92b245c305

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "af2f540d17275bdb69264e226ac397113568beba61efa40d2408c797c6d4614c",
    "cross_cats_sorted": [
      "cs.DS",
      "stat.ML"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CR",
    "submitted_at": "2015-11-18T07:34:23Z",
    "title_canon_sha256": "9c60ab7ec07bf2a6f5c152ffeb24954021f90898c1f175d1b0d0e1dbbca1e18f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1511.05680",
    "kind": "arxiv",
    "version": 2
  }
}