Pith Number

pith:MVJPDU6N

pith:2011:MVJPDU6N4B3AVFXOKWNAMPXF6M

not attested not anchored not stored refs pending

Learning Hierarchical and Topographic Dictionaries with Structured Sparsity

Francis Bach (LIENS, Guillaume Obozinski (LIENS, INRIA Paris - Rocquencourt), Julien Mairal, Rodolphe Jenatton (LIENS

arxiv:1110.4481 v1 · 2011-10-20 · 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{MVJPDU6N4B3AVFXOKWNAMPXF6M}

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	2026-05-18T04:10:36.644035Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6552f1d3cde0760a96ee559a063ee5f32329011c0629b918ee5b281c184b1997

Aliases

arxiv: 1110.4481 · arxiv_version: 1110.4481v1 · doi: 10.48550/arxiv.1110.4481 · pith_short_12: MVJPDU6N4B3A · pith_short_16: MVJPDU6N4B3AVFXO · pith_short_8: MVJPDU6N

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/MVJPDU6N4B3AVFXOKWNAMPXF6M \
  | 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: 6552f1d3cde0760a96ee559a063ee5f32329011c0629b918ee5b281c184b1997

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f92097e07c003fa0f8efa4f180e0031b830d4ef01970aff242ecf858491eb827",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2011-10-20T09:50:58Z",
    "title_canon_sha256": "b8168c24aca4def4c51ad7fee56fe40a6c0dff02c5c387a24455d5dd4397570f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1110.4481",
    "kind": "arxiv",
    "version": 1
  }
}