Pith Number

pith:ZXU3MRHN

pith:2016:ZXU3MRHNPRIFQIJ62G4YSZQQK5

not attested not anchored not stored refs pending

Structured Sparse Principal Components Analysis with the TV-Elastic Net penalty

Amicie de Pierrefeu, Edouard Duchesnay, Fouad Hadj-Selem, Mathieu Dubois, Philippe Ciuciu, Tommy L\"ofstedt, Vincent Frouin

arxiv:1609.01423 v3 · 2016-09-06 · 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{ZXU3MRHNPRIFQIJ62G4YSZQQK5}

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	2026-05-18T01:04:40.931972Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cde9b644ed7c5058213ed1b9896610575e088481ed2c18619672195334c107f2

Aliases

arxiv: 1609.01423 · arxiv_version: 1609.01423v3 · doi: 10.48550/arxiv.1609.01423 · pith_short_12: ZXU3MRHNPRIF · pith_short_16: ZXU3MRHNPRIFQIJ6 · pith_short_8: ZXU3MRHN

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/ZXU3MRHNPRIFQIJ62G4YSZQQK5 \
  | 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: cde9b644ed7c5058213ed1b9896610575e088481ed2c18619672195334c107f2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fdcf6f5db4f639eddb81a81f003fd9054c0b2274e2b3683ede7ed3d4a75d7647",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "stat.ML",
    "submitted_at": "2016-09-06T08:07:27Z",
    "title_canon_sha256": "b35575d4d76e4b27efb370d7c6f3a5858e6be914d8d47a80c1eddb40e3472b4f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1609.01423",
    "kind": "arxiv",
    "version": 3
  }
}