Pith Number

pith:4NCMDQ2X

pith:2016:4NCMDQ2XQ46ONTUNW7HGYLUPK4

not attested not anchored not stored refs pending

Sparse model selection in the highly under-sampled regime

Matteo Marsili, Nicola Bulso, Yasser Roudi

arxiv:1603.00952 v2 · 2016-03-03 · stat.ML · cond-mat.dis-nn

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{4NCMDQ2XQ46ONTUNW7HGYLUPK4}

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	2026-05-18T00:53:40.383210Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e344c1c357873ce6ce8db7ce6c2e8f571d8f76dffa40feee8833eb06e9dc7219

Aliases

arxiv: 1603.00952 · arxiv_version: 1603.00952v2 · doi: 10.48550/arxiv.1603.00952 · pith_short_12: 4NCMDQ2XQ46O · pith_short_16: 4NCMDQ2XQ46ONTUN · pith_short_8: 4NCMDQ2X

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/4NCMDQ2XQ46ONTUNW7HGYLUPK4 \
  | 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: e344c1c357873ce6ce8db7ce6c2e8f571d8f76dffa40feee8833eb06e9dc7219

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "080060407e350d0273a197b8f64b6d3c19b2b968da0504302255447535df26b2",
    "cross_cats_sorted": [
      "cond-mat.dis-nn"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "stat.ML",
    "submitted_at": "2016-03-03T02:56:16Z",
    "title_canon_sha256": "a6cbf30d6676ed2bdc7ff3d325be580c95fab902d004a65b1127d4193c1f6ab5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1603.00952",
    "kind": "arxiv",
    "version": 2
  }
}