Pith Number

pith:V4LOFRIE

pith:2010:V4LOFRIEF35AKRHYVZ2M7WJPFQ

not attested not anchored not stored refs pending

Low-Rank Structure Learning via Log-Sum Heuristic Recovery

Qionghai Dai, Risheng Liu, Sanqing Hu, Yue Deng, Zengke Zhang

arxiv:1012.1919 v3 · 2010-12-09 · cs.NA · cs.IT · cs.LG · math.IT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{V4LOFRIEF35AKRHYVZ2M7WJPFQ}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more

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	2026-05-18T02:45:29.142835Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

af16e2c5042efa0544f8ae74cfd92f2c3bdbce9b8606c6080c258c3740fd69f0

Aliases

arxiv: 1012.1919 · arxiv_version: 1012.1919v3 · doi: 10.48550/arxiv.1012.1919 · pith_short_12: V4LOFRIEF35A · pith_short_16: V4LOFRIEF35AKRHY · pith_short_8: V4LOFRIE

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/V4LOFRIEF35AKRHYVZ2M7WJPFQ \
  | 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: af16e2c5042efa0544f8ae74cfd92f2c3bdbce9b8606c6080c258c3740fd69f0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c7a2b1fc4483bc8e82cdbba1f65ae2b8ecc616769301d9658486bb702eed7b60",
    "cross_cats_sorted": [
      "cs.IT",
      "cs.LG",
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.NA",
    "submitted_at": "2010-12-09T03:54:44Z",
    "title_canon_sha256": "afb639f27d302168c87be9271b563a3debbb0274df082c9cef8f4fd50e80f91b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1012.1919",
    "kind": "arxiv",
    "version": 3
  }
}