Pith Number

pith:MGRKS5AW

pith:2019:MGRKS5AWKIP3E53FLLICYYNY2D

not attested not anchored not stored refs pending

Non-Negative Local Sparse Coding for Subspace Clustering

Babak Hosseini, Barbara Hammer

arxiv:1903.05239 v1 · 2019-03-12 · cs.LG · cs.DS · 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{MGRKS5AWKIP3E53FLLICYYNY2D}

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	2026-05-17T23:51:24.998232Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

61a2a97416521fb277655ad02c61b8d0d1c784872e7d3c7dc211184beb0c3ede

Aliases

arxiv: 1903.05239 · arxiv_version: 1903.05239v1 · doi: 10.48550/arxiv.1903.05239 · pith_short_12: MGRKS5AWKIP3 · pith_short_16: MGRKS5AWKIP3E53F · pith_short_8: MGRKS5AW

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/MGRKS5AWKIP3E53FLLICYYNY2D \
  | 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: 61a2a97416521fb277655ad02c61b8d0d1c784872e7d3c7dc211184beb0c3ede

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "71954c2107ad427fa8e97ba07e406f1dd9e02b986b6a5bb059e24b6206fe3e53",
    "cross_cats_sorted": [
      "cs.DS",
      "stat.ML"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2019-03-12T22:20:10Z",
    "title_canon_sha256": "e94a6e4f9c4716e7a0a805ece739b2441822ebeca11d18d656e36d111a2521ac"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1903.05239",
    "kind": "arxiv",
    "version": 1
  }
}