Pith Number

pith:G6PDGUKY

pith:2013:G6PDGUKY4DON3WV5EPQXN5QP2H

not attested not anchored not stored refs pending

Rate-optimal posterior contraction for sparse PCA

Chao Gao, Harrison H. Zhou

arxiv:1312.0142 v5 · 2013-11-30 · 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{G6PDGUKY4DON3WV5EPQXN5QP2H}

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	2026-05-18T02:19:42.711296Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

379e335158e0dcdddabd23e176f60fd1c6751ea7aaf241bd11bf568447ae174a

Aliases

arxiv: 1312.0142 · arxiv_version: 1312.0142v5 · doi: 10.48550/arxiv.1312.0142 · pith_short_12: G6PDGUKY4DON · pith_short_16: G6PDGUKY4DON3WV5 · pith_short_8: G6PDGUKY

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/G6PDGUKY4DON3WV5EPQXN5QP2H \
  | 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: 379e335158e0dcdddabd23e176f60fd1c6751ea7aaf241bd11bf568447ae174a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f0a1cecb59f9b6ac4ae33143d8ca639d496e0e17a83184d75428532867a971b8",
    "cross_cats_sorted": [
      "stat.TH"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.ST",
    "submitted_at": "2013-11-30T19:01:03Z",
    "title_canon_sha256": "e1a0657d8158830e841254ff28ab4548e43720c1e57e24839c461e460eb50a2a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1312.0142",
    "kind": "arxiv",
    "version": 5
  }
}