Pith Number

pith:5M4RKGEL

pith:2015:5M4RKGELYRIAZNZYK4VFM64Y7D

not attested not anchored not stored refs pending

Proximal Multitask Learning over Networks with Sparsity-inducing Coregularization

Ali H. Sayed, Andr\'e Ferrari, C\'edric Richard, Roula Nassif

arxiv:1509.01360 v2 · 2015-09-04 · cs.SY · cs.MA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{5M4RKGELYRIAZNZYK4VFM64Y7D}

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	2026-05-18T01:00:40.431942Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

eb3915188bc4500cb738572a567b98f8d26fc3e592d5c11e3c186fe431a1f3a1

Aliases

arxiv: 1509.01360 · arxiv_version: 1509.01360v2 · doi: 10.48550/arxiv.1509.01360 · pith_short_12: 5M4RKGELYRIA · pith_short_16: 5M4RKGELYRIAZNZY · pith_short_8: 5M4RKGEL

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/5M4RKGELYRIAZNZYK4VFM64Y7D \
  | 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: eb3915188bc4500cb738572a567b98f8d26fc3e592d5c11e3c186fe431a1f3a1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f8844ddeb007981ca7d5835792bbcd9bc1a3c4da3c33dee46a649d2622388589",
    "cross_cats_sorted": [
      "cs.MA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.SY",
    "submitted_at": "2015-09-04T08:08:00Z",
    "title_canon_sha256": "0b8428af07f0ce781a3f231c03e7edf422b824643b5d3a30e704202cd5f8c11f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1509.01360",
    "kind": "arxiv",
    "version": 2
  }
}