Pith Number

pith:NDNAAI6K

pith:2013:NDNAAI6K5D5VK2AIBNSEQ7LS4Z

not attested not anchored not stored refs pending

Controlled Sparsity Kernel Learning

Chiranjib Bhattacharyya, Dinesh Govindaraj, Raman Sankaran, Sreedal Menon

arxiv:1401.0116 v1 · 2013-12-31 · 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{NDNAAI6K5D5VK2AIBNSEQ7LS4Z}

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	2026-05-18T03:03:30.997494Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

68da0023cae8fb5568080b64487d72e645121ab72f1e3a922d6340e90809e36b

Aliases

arxiv: 1401.0116 · arxiv_version: 1401.0116v1 · doi: 10.48550/arxiv.1401.0116 · pith_short_12: NDNAAI6K5D5V · pith_short_16: NDNAAI6K5D5VK2AI · pith_short_8: NDNAAI6K

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/NDNAAI6K5D5VK2AIBNSEQ7LS4Z \
  | 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: 68da0023cae8fb5568080b64487d72e645121ab72f1e3a922d6340e90809e36b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6e0edbc8051e0a6aa6110691c5cefad66df73f3f95cc9000c927dc929ffdd768",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2013-12-31T09:13:09Z",
    "title_canon_sha256": "b42a222b526e3cd473a20547a285885182e54bd3bfc97a43d3a2a6d2ad0d0be7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1401.0116",
    "kind": "arxiv",
    "version": 1
  }
}