Pith Number

pith:E33NQWDH

pith:2013:E33NQWDHAMPTFQC7GZGUMWBAZX

not attested not anchored not stored refs pending

Sparse Overlapping Sets Lasso for Multitask Learning and its Application to fMRI Analysis

Christopher Cox, Nikhil Rao, Robert Nowak, Timothy Rogers

arxiv:1311.5422 v2 · 2013-11-20 · cs.LG · 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{E33NQWDHAMPTFQC7GZGUMWBAZX}

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	2026-05-18T03:06:32.074646Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

26f6d85867031f32c05f364d465820cdcf317dc457eaf0157037627a54e17bb9

Aliases

arxiv: 1311.5422 · arxiv_version: 1311.5422v2 · doi: 10.48550/arxiv.1311.5422 · pith_short_12: E33NQWDHAMPT · pith_short_16: E33NQWDHAMPTFQC7 · pith_short_8: E33NQWDH

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/E33NQWDHAMPTFQC7GZGUMWBAZX \
  | 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: 26f6d85867031f32c05f364d465820cdcf317dc457eaf0157037627a54e17bb9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9e2dfd1cbbc138a9505e1193ee48ed3bea77b0228d5dfb2b4a9c3e889680eff9",
    "cross_cats_sorted": [
      "stat.ML"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2013-11-20T16:45:51Z",
    "title_canon_sha256": "d077b8883a811eaadabaa68799eb53ed1dcb09f1977b2f0b20e011b84b874be8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1311.5422",
    "kind": "arxiv",
    "version": 2
  }
}