Pith Number

pith:CFFK2JV5

pith:2014:CFFK2JV5HGGZBV63DPLVF74BK6

not attested not anchored not stored refs pending

A Simple Homotopy Proximal Mapping for Compressive Sensing

Lijun Zhang, Rong Jin, Shenghuo Zhu, Tianbao Yang, Zhi-Hua Zhou

arxiv:1412.1205 v4 · 2014-12-03 · cs.IT · math.IT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{CFFK2JV5HGGZBV63DPLVF74BK6}

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	2026-05-18T01:07:54.239842Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

114aad26bd398d90d7db1bd752ff815786f935e7de73f4ff4fa6ddb86fe79daf

Aliases

arxiv: 1412.1205 · arxiv_version: 1412.1205v4 · doi: 10.48550/arxiv.1412.1205 · pith_short_12: CFFK2JV5HGGZ · pith_short_16: CFFK2JV5HGGZBV63 · pith_short_8: CFFK2JV5

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/CFFK2JV5HGGZBV63DPLVF74BK6 \
  | 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: 114aad26bd398d90d7db1bd752ff815786f935e7de73f4ff4fa6ddb86fe79daf

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e4f06027a0ac62145bc1b0a8dfc9583504525fe7f50f76b2c83130f36be27e5d",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2014-12-03T06:13:30Z",
    "title_canon_sha256": "fa6875b4a638f0fc6657244fe47cb5d54e6bd6275f07fcee24d37cb89dae777f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1412.1205",
    "kind": "arxiv",
    "version": 4
  }
}