Pith Number

pith:CWH7PL7G

pith:2014:CWH7PL7GOOER7NQQU2I3CPV5NG

not attested not anchored not stored refs pending

$\ell_1$-K-SVD: A Robust Dictionary Learning Algorithm With Simultaneous Update

Chandra Sekhar Seelamantula, Rupam Basu, Subhadip Mukherjee

arxiv:1410.0311 v2 · 2014-08-26 · cs.CV · 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{CWH7PL7GOOER7NQQU2I3CPV5NG}

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	2026-05-18T02:25:48.980226Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

158ff7afe673891fb610a691b13ebd69bbcaf6c6d87738327d2a098761e187ed

Aliases

arxiv: 1410.0311 · arxiv_version: 1410.0311v2 · doi: 10.48550/arxiv.1410.0311 · pith_short_12: CWH7PL7GOOER · pith_short_16: CWH7PL7GOOER7NQQ · pith_short_8: CWH7PL7G

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/CWH7PL7GOOER7NQQU2I3CPV5NG \
  | 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: 158ff7afe673891fb610a691b13ebd69bbcaf6c6d87738327d2a098761e187ed

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "afb740fdb7a134aa256e72433b13cd47d106273cc800cd9ac1065b7e38bc1748",
    "cross_cats_sorted": [
      "cs.LG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2014-08-26T07:23:04Z",
    "title_canon_sha256": "ad4054eb2d18287ba35accd8787ad4de16fe1e5f846819d88b86d062321bc879"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1410.0311",
    "kind": "arxiv",
    "version": 2
  }
}