Pith Number

pith:SQ5WYJBV

pith:2019:SQ5WYJBVV5IPNLVHH3PWWNQ4DY

not attested not anchored not stored refs pending

Low-rank Matrix Optimization Using Polynomial-filtered Subspace Extraction

Haoyang Liu, Yaxiang Yuan, Yongfeng Li, Zaiwen Wen

arxiv:1904.10585 v1 · 2019-04-24 · math.OC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{SQ5WYJBVV5IPNLVHH3PWWNQ4DY}

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	2026-05-17T23:47:53.327276Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

943b6c2435af50f6aea73edf6b361c1e3c33ce9403466cfaf5e91827fdf012b4

Aliases

arxiv: 1904.10585 · arxiv_version: 1904.10585v1 · doi: 10.48550/arxiv.1904.10585 · pith_short_12: SQ5WYJBVV5IP · pith_short_16: SQ5WYJBVV5IPNLVH · pith_short_8: SQ5WYJBV

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/SQ5WYJBVV5IPNLVHH3PWWNQ4DY \
  | 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: 943b6c2435af50f6aea73edf6b361c1e3c33ce9403466cfaf5e91827fdf012b4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "86a8c4021516f2b7699120ca9b106b225b4146e3ed1387fe9fa5ca5562d019d0",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2019-04-24T00:40:32Z",
    "title_canon_sha256": "98ae7e8a73d0b398960bde018262ea2ef24984cb87e0068365b55ad68304f65a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1904.10585",
    "kind": "arxiv",
    "version": 1
  }
}