Pith Number

pith:BFDUNMFA

pith:2019:BFDUNMFABUXVGUCAVKZCIOGDUU

not attested not anchored not stored refs pending

Low-rank matrix recovery with composite optimization: good conditioning and rapid convergence

Damek Davis, Dmitriy Drusvyatskiy, Lijun Ding, Mateo D\'iaz, Vasileios Charisopoulos, Yudong Chen

arxiv:1904.10020 v1 · 2019-04-22 · math.OC · cs.LG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{BFDUNMFABUXVGUCAVKZCIOGDUU}

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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.

Cited by

1 paper in Pith

Stochastic algorithms with geometric step decay converge linearly on sharp functions

Receipt and verification

First computed	2026-05-17T23:47:55.252186Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

094746b0a00d2f535040aab22438c3a512e63e3f815d7c90bcb4d04f22ec02ec

Aliases

arxiv: 1904.10020 · arxiv_version: 1904.10020v1 · doi: 10.48550/arxiv.1904.10020 · pith_short_12: BFDUNMFABUXV · pith_short_16: BFDUNMFABUXVGUCA · pith_short_8: BFDUNMFA

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/BFDUNMFABUXVGUCAVKZCIOGDUU \
  | 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: 094746b0a00d2f535040aab22438c3a512e63e3f815d7c90bcb4d04f22ec02ec

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4afdcffdb26131ef1b1a7d18260500277dd73f4a9484d308e68c5da42fa81119",
    "cross_cats_sorted": [
      "cs.LG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2019-04-22T18:36:56Z",
    "title_canon_sha256": "6fd80cca9f18de149f2cd77b79d978c3731b67c9ac6f23d4a39bec78f74a82b5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1904.10020",
    "kind": "arxiv",
    "version": 1
  }
}