Pith Number

pith:37YHGT32

pith:2012:37YHGT3235QQM3OHBABFK3ZEPO

not attested not anchored not stored refs pending

On the Statistical Efficiency of $\ell_{1,p}$ Multi-Task Learning of Gaussian Graphical Models

Dimitris Samaras, Jean Honorio, Tommi Jaakkola

arxiv:1207.4255 v2 · 2012-07-18 · 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{37YHGT3235QQM3OHBABFK3ZEPO}

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	2026-05-18T01:29:22.159796Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

dff0734f7adf61066dc70802556f247b90f11e5acc97bc007dd51a1a39056d7d

Aliases

arxiv: 1207.4255 · arxiv_version: 1207.4255v2 · doi: 10.48550/arxiv.1207.4255 · pith_short_12: 37YHGT3235QQ · pith_short_16: 37YHGT3235QQM3OH · pith_short_8: 37YHGT32

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/37YHGT3235QQM3OHBABFK3ZEPO \
  | 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: dff0734f7adf61066dc70802556f247b90f11e5acc97bc007dd51a1a39056d7d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "98212f81b5f3b9e74b3e92919bb4d3bd6dd99b9414082987fae1bfe421884081",
    "cross_cats_sorted": [
      "stat.ML"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2012-07-18T02:53:02Z",
    "title_canon_sha256": "6c2b31375d02a0a5b604656192bb8cd36b38767672354bc5ec0c34ee414edd06"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1207.4255",
    "kind": "arxiv",
    "version": 2
  }
}