Pith Number

pith:CNRWB77I

pith:2023:CNRWB77ID7VVXDHVFNMPP4KFTT

not attested not anchored not stored refs pending

A Block Coordinate Descent Method for Nonsmooth Composite Optimization under Orthogonality Constraints

Ganzhao Yuan

arxiv:2304.03641 v4 · 2023-04-07 · math.OC · cs.LG · cs.NA · math.NA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{CNRWB77ID7VVXDHVFNMPP4KFTT}

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	2026-05-17T23:39:01.888703Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

136360ffe81feb5b8cf52b58f7f1459cf6b712a855c69563ce0fd9fdb67cb9df

Aliases

arxiv: 2304.03641 · arxiv_version: 2304.03641v4 · doi: 10.48550/arxiv.2304.03641 · pith_short_12: CNRWB77ID7VV · pith_short_16: CNRWB77ID7VVXDHV · pith_short_8: CNRWB77I

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/CNRWB77ID7VVXDHVFNMPP4KFTT \
  | 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: 136360ffe81feb5b8cf52b58f7f1459cf6b712a855c69563ce0fd9fdb67cb9df

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e0055bca35d65cee2f82c0f9e52b16da99f8eca6a16fe055f3e61bf6aa8bd56a",
    "cross_cats_sorted": [
      "cs.LG",
      "cs.NA",
      "math.NA"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2023-04-07T13:44:59Z",
    "title_canon_sha256": "0ab09673df2a32c7910f6aa4f84a0e8ae1942e0310f21c4400f1ccc19e3f1bdb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2304.03641",
    "kind": "arxiv",
    "version": 4
  }
}