Pith Number

pith:JZI7LQXZ

pith:2011:JZI7LQXZMHOBN7QNP7GZGGAYWJ

not attested not anchored not stored refs pending

Low-rank optimization with trace norm penalty

B. Mishra, F. Bach, G. Meyer, R. Sepulchre

arxiv:1112.2318 v2 · 2011-12-11 · math.OC · 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{JZI7LQXZMHOBN7QNP7GZGGAYWJ}

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	2026-05-18T03:22:06.359382Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4e51f5c2f961dc16fe0d7fcd931818b250b539cea54ae199006f3f06d7ed09b5

Aliases

arxiv: 1112.2318 · arxiv_version: 1112.2318v2 · doi: 10.48550/arxiv.1112.2318 · pith_short_12: JZI7LQXZMHOB · pith_short_16: JZI7LQXZMHOBN7QN · pith_short_8: JZI7LQXZ

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/JZI7LQXZMHOBN7QNP7GZGGAYWJ \
  | 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: 4e51f5c2f961dc16fe0d7fcd931818b250b539cea54ae199006f3f06d7ed09b5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ad2e59d5061252cfd374efab6b3fe155ec569fd94fb36ae8fd23f980515593a7",
    "cross_cats_sorted": [
      "cs.LG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2011-12-11T04:00:57Z",
    "title_canon_sha256": "273b85112f3e759746d1114273834499207bc8af25683ed033e71e0f528f52c5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1112.2318",
    "kind": "arxiv",
    "version": 2
  }
}