Pith Number

pith:P6P2E3ZN

pith:2018:P6P2E3ZNB7U754DKSRSPVIUXMV

not attested not anchored not stored refs pending

A non-convex approach to low-rank and sparse matrix decomposition

Angang Cui, Haiyang Li, Jigen Peng, Meng Wen

arxiv:1807.01276 v2 · 2018-07-02 · math.OC · cs.CV · eess.IV

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{P6P2E3ZNB7U754DKSRSPVIUXMV}

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	2026-05-17T23:46:30.236548Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7f9fa26f2d0fe9fef06a9464faa2976578b3afd91026a69898ad3ed9fde67852

Aliases

arxiv: 1807.01276 · arxiv_version: 1807.01276v2 · doi: 10.48550/arxiv.1807.01276 · pith_short_12: P6P2E3ZNB7U7 · pith_short_16: P6P2E3ZNB7U754DK · pith_short_8: P6P2E3ZN

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/P6P2E3ZNB7U754DKSRSPVIUXMV \
  | 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: 7f9fa26f2d0fe9fef06a9464faa2976578b3afd91026a69898ad3ed9fde67852

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "482941bcda6bd6435e870a50cb228dd18e1e40774794a5387087700b1dd06342",
    "cross_cats_sorted": [
      "cs.CV",
      "eess.IV"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2018-07-02T03:25:42Z",
    "title_canon_sha256": "884e42d27393ccf1655356d4755f15dae3d3b2a3448c98674c75e8557b076785"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1807.01276",
    "kind": "arxiv",
    "version": 2
  }
}