Pith Number

pith:DBFDG5FF

pith:2017:DBFDG5FFHRBZ37F4QCL3NHRF5X

not attested not anchored not stored refs pending

Sketchy Decisions: Convex Low-Rank Matrix Optimization with Optimal Storage

Alp Yurtsever, Joel A. Tropp, Madeleine Udell, Volkan Cevher

arxiv:1702.06838 v1 · 2017-02-22 · math.OC · stat.ML

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{DBFDG5FFHRBZ37F4QCL3NHRF5X}

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	2026-05-18T00:50:10.334908Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

184a3374a53c439dfcbc8097b69e25edd97a86201725865724dbc0145fc0c8b0

Aliases

arxiv: 1702.06838 · arxiv_version: 1702.06838v1 · doi: 10.48550/arxiv.1702.06838 · pith_short_12: DBFDG5FFHRBZ · pith_short_16: DBFDG5FFHRBZ37F4 · pith_short_8: DBFDG5FF

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/DBFDG5FFHRBZ37F4QCL3NHRF5X \
  | 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: 184a3374a53c439dfcbc8097b69e25edd97a86201725865724dbc0145fc0c8b0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4f268e7d9f710273ae22fbd1aac1feaf17c45753e3628a4c85052efe3a4a36fe",
    "cross_cats_sorted": [
      "stat.ML"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2017-02-22T15:23:10Z",
    "title_canon_sha256": "335a892b3e524773934d66a7634962a50b91638ba6dda82cdc3f64747e6e5930"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1702.06838",
    "kind": "arxiv",
    "version": 1
  }
}