Pith Number

pith:4K5UPIWJ

pith:2025:4K5UPIWJBELXKWX2QOVZV4MBOR

not attested not anchored not stored refs pending

Model-Driven Subspaces for Large-Scale Optimization with Local Approximation Strategy

Pengcheng Xie, Yitong He

arxiv:2509.08256 v1 · 2025-09-10 · math.OC · 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{4K5UPIWJBELXKWX2QOVZV4MBOR}

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.

Cited by

1 paper in Pith

Distributed Gradient-Regularized Newton Method: Scheduled Consensus and O(epsilon^{-1}) Global Iteration Complexity

Receipt and verification

First computed	2026-07-05T12:08:26.243100Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e2bb47a2c90917755afa83ab9af181744972b22a14b04c936be9a3d76be1ea1b

Aliases

arxiv: 2509.08256 · arxiv_version: 2509.08256v1 · doi: 10.48550/arxiv.2509.08256 · pith_short_12: 4K5UPIWJBELX · pith_short_16: 4K5UPIWJBELXKWX2 · pith_short_8: 4K5UPIWJ

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/4K5UPIWJBELXKWX2QOVZV4MBOR \
  | 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: e2bb47a2c90917755afa83ab9af181744972b22a14b04c936be9a3d76be1ea1b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "372e10316bf0ca06f0bd1615bb4df55524f96d7ced8fdaca0ddef2c940d740a7",
    "cross_cats_sorted": [
      "cs.NA",
      "math.NA"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2025-09-10T03:25:56Z",
    "title_canon_sha256": "7da2b09a1163a7c6207c3fca9bd78be4c8d953a7a43e1957809507e9e193fb78"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2509.08256",
    "kind": "arxiv",
    "version": 1
  }
}