Pith Number

pith:Z7IWEL4H

pith:2018:Z7IWEL4HP6S7UDS6JUZHLDA6ZV

not attested not anchored not stored refs pending

Proximal SCOPE for Distributed Sparse Learning: Better Data Partition Implies Faster Convergence Rate

Gong-Duo Zhang, Ming-Wei Li, Shen-Yi Zhao, Wu-Jun Li

arxiv:1803.05621 v2 · 2018-03-15 · stat.ML · 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{Z7IWEL4HP6S7UDS6JUZHLDA6ZV}

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	2026-05-18T00:02:18.135880Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cfd1622f877fa5fa0e5e4d32758c1ecd6c1d5d5c11fac62e64e76a4930c73d56

Aliases

arxiv: 1803.05621 · arxiv_version: 1803.05621v2 · doi: 10.48550/arxiv.1803.05621 · pith_short_12: Z7IWEL4HP6S7 · pith_short_16: Z7IWEL4HP6S7UDS6 · pith_short_8: Z7IWEL4H

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/Z7IWEL4HP6S7UDS6JUZHLDA6ZV \
  | 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: cfd1622f877fa5fa0e5e4d32758c1ecd6c1d5d5c11fac62e64e76a4930c73d56

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "391a1edae048edd20ead096d4ff38602fead6122340eb184a33cac79bcd3c49b",
    "cross_cats_sorted": [
      "cs.LG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "stat.ML",
    "submitted_at": "2018-03-15T07:38:50Z",
    "title_canon_sha256": "cab643e862f9469f8faa17f9d881243a870ea504cd55c3f5fa8c75a486b61790"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1803.05621",
    "kind": "arxiv",
    "version": 2
  }
}