Pith Number

pith:I3EKMNBW

pith:2014:I3EKMNBWR2RKRLG4WV2FJRJSA4

not attested not anchored not stored refs pending

Proximal Iteratively Reweighted Algorithm with Multiple Splitting for Nonconvex Sparsity Optimization

Canyi Lu, Shuicheng Yan, Yunchao Wei, Zhouchen Lin

arxiv:1404.6871 v1 · 2014-04-28 · cs.NA · cs.CV

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{I3EKMNBWR2RKRLG4WV2FJRJSA4}

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	2026-05-18T02:53:05.694092Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

46c8a634368ea2a8acdcb57454c532072ec12779863338409d7143f2086ab7f0

Aliases

arxiv: 1404.6871 · arxiv_version: 1404.6871v1 · doi: 10.48550/arxiv.1404.6871 · pith_short_12: I3EKMNBWR2RK · pith_short_16: I3EKMNBWR2RKRLG4 · pith_short_8: I3EKMNBW

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/I3EKMNBWR2RKRLG4WV2FJRJSA4 \
  | 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: 46c8a634368ea2a8acdcb57454c532072ec12779863338409d7143f2086ab7f0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b8a8bf84d86f2884016a66fd58b4c6ceac798b89efac51bbce79716310ebb9e5",
    "cross_cats_sorted": [
      "cs.CV"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.NA",
    "submitted_at": "2014-04-28T05:52:30Z",
    "title_canon_sha256": "5e515d4d641d16569aa280ffec29cd1298ff7eafff684d06d5a5c54cc1ff0e89"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1404.6871",
    "kind": "arxiv",
    "version": 1
  }
}