Pith Number

pith:O77IX5V4

pith:2018:O77IX5V4OMCPECJ2O3QQNOOURP

not attested not anchored not stored refs pending

Wasserstein regularization for sparse multi-task regression

Alexandre Gramfort, Hicham Janati, Marco Cuturi

arxiv:1805.07833 v3 · 2018-05-20 · stat.ML · cs.LG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{O77IX5V4OMCPECJ2O3QQNOOURP}

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	2026-05-17T23:56:47.935244Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

77fe8bf6bc7304f2093a76e106b9d48bd4bc314dcabea40bb0146004b0f7af38

Aliases

arxiv: 1805.07833 · arxiv_version: 1805.07833v3 · doi: 10.48550/arxiv.1805.07833 · pith_short_12: O77IX5V4OMCP · pith_short_16: O77IX5V4OMCPECJ2 · pith_short_8: O77IX5V4

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/O77IX5V4OMCPECJ2O3QQNOOURP \
  | 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: 77fe8bf6bc7304f2093a76e106b9d48bd4bc314dcabea40bb0146004b0f7af38

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "938958d1e1817c8e9cad6b3123f5cdbcb11dc9634f02d10756663b11cef34f67",
    "cross_cats_sorted": [
      "cs.LG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "stat.ML",
    "submitted_at": "2018-05-20T22:50:18Z",
    "title_canon_sha256": "e3ae59402da247c70efaebd90a63042fcbf902c76db2832ee90883a96acf897a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1805.07833",
    "kind": "arxiv",
    "version": 3
  }
}