Pith Number

pith:BWUUFR2T

pith:2012:BWUUFR2T4SHVKKAGXPV4TJNHCL

not attested not anchored not stored refs pending

Multi-Task Feature Learning Via Efficient l2,1-Norm Minimization

Jieping Ye, Jun Liu, Shuiwang Ji

arxiv:1205.2631 v1 · 2012-05-09 · cs.LG · cs.CV · 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{BWUUFR2T4SHVKKAGXPV4TJNHCL}

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.

Cited by

1 paper in Pith

Multi-label feature selection based on binary hashing learning and dynamic graph constraints

Receipt and verification

First computed	2026-05-18T03:55:47.774584Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0da942c753e48f552806bbebc9a5a712e978d6b085942fd00842ce415e455e32

Aliases

arxiv: 1205.2631 · arxiv_version: 1205.2631v1 · doi: 10.48550/arxiv.1205.2631 · pith_short_12: BWUUFR2T4SHV · pith_short_16: BWUUFR2T4SHVKKAG · pith_short_8: BWUUFR2T

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/BWUUFR2T4SHVKKAGXPV4TJNHCL \
  | 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: 0da942c753e48f552806bbebc9a5a712e978d6b085942fd00842ce415e455e32

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f22ed150756f5e7621ec3001446ae81f3e591acdbabc4c6276bdf63c8226db44",
    "cross_cats_sorted": [
      "cs.CV",
      "stat.ML"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2012-05-09T17:09:42Z",
    "title_canon_sha256": "5f2e8c2eded15745c4c3506ab503c89f827f4ad5c0bc54227baff624c67c2cd0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1205.2631",
    "kind": "arxiv",
    "version": 1
  }
}