Pith Number

pith:MSV7N4MJ

pith:2025:MSV7N4MJGFP3FVE2T4L3DW2P4M

not attested not anchored not stored refs pending

A Spatial-Sign based Direct Approach for High Dimensional Sparse Quadratic Discriminant Analysis

Anqing Shen, Long Feng

arxiv:2504.11187 v1 · 2025-04-15 · stat.ME

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{MSV7N4MJGFP3FVE2T4L3DW2P4M}

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.

Cited by

1 paper in Pith

High-Dimensional Hettmansperger-Randles Estimator and its Applications

Receipt and verification

First computed	2026-07-05T10:49:30.470673Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

64abf6f189315fb2d49a9f17b1db4fe30d5f0c9fd209b36e44ad9d85e4bbe8b1

Aliases

arxiv: 2504.11187 · arxiv_version: 2504.11187v1 · doi: 10.48550/arxiv.2504.11187 · pith_short_12: MSV7N4MJGFP3 · pith_short_16: MSV7N4MJGFP3FVE2 · pith_short_8: MSV7N4MJ

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/MSV7N4MJGFP3FVE2T4L3DW2P4M \
  | 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: 64abf6f189315fb2d49a9f17b1db4fe30d5f0c9fd209b36e44ad9d85e4bbe8b1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "291f606b035f6317ad54f513b45249cee0a2c7e8ca1153709ce26035c684ea34",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "stat.ME",
    "submitted_at": "2025-04-15T13:42:41Z",
    "title_canon_sha256": "ec20b47325dfd856561907944b0e391c27dbc0088c1fcff1b7728f2fe6bcd03f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2504.11187",
    "kind": "arxiv",
    "version": 1
  }
}