Pith Number

pith:C5FCTHCR

pith:2026:C5FCTHCRGWPU2YMCDFRIX2IWAU

not attested not anchored not stored refs pending

Preconditioned Proximal Gradient Methods with Conjugate Momentum: A Subspace Perspective

Jian Chen, Xinmin Yang

arxiv:2603.16573 v3 · 2026-03-17 · 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{C5FCTHCRGWPU2YMCDFRIX2IWAU}

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	2026-06-26T01:15:50.751745Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

174a299c51359f4d618219628be9160529fd62b7415d98d56919aecf1bd6d628

Aliases

arxiv: 2603.16573 · arxiv_version: 2603.16573v3 · doi: 10.48550/arxiv.2603.16573 · pith_short_12: C5FCTHCRGWPU · pith_short_16: C5FCTHCRGWPU2YMC · pith_short_8: C5FCTHCR

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/C5FCTHCRGWPU2YMCDFRIX2IWAU \
  | 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: 174a299c51359f4d618219628be9160529fd62b7415d98d56919aecf1bd6d628

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e460ea747ff8c2bf0c3a5b3e6be184cb297315dcc7f03b424d49ce995f9dc42a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2026-03-17T14:27:44Z",
    "title_canon_sha256": "8fbc2f6d4f3e6506908526c2963b17f87116f11f52640bcb61b4a19013fc83c6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2603.16573",
    "kind": "arxiv",
    "version": 3
  }
}