Pith Number

pith:6SPZ3MXH

pith:2023:6SPZ3MXHIMJ6HQV2HH4HHJPUKB

not attested not anchored not stored refs pending

Cubic Regularization is the Key! The First Accelerated Quasi-Newton Method with a Global Convergence Rate of $O(k^{-2})$ for Convex Functions

Artem Agafonov, Dmitry Kamzolov, Klea Ziu, Martin Tak\'a\v{c}

arxiv:2302.04987 v2 · 2023-02-10 · math.OC

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\usepackage{pith}
\pithnumber{6SPZ3MXHIMJ6HQV2HH4HHJPUKB}

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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

Simple Stepsize for Quasi-Newton Methods with Global Convergence Guarantees

Receipt and verification

First computed	2026-07-05T06:14:40.658233Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f49f9db2e74313e3c2ba39f873a5f45050e0710a67734c9268f4f2dc0d6fb284

Aliases

arxiv: 2302.04987 · arxiv_version: 2302.04987v2 · doi: 10.48550/arxiv.2302.04987 · pith_short_12: 6SPZ3MXHIMJ6 · pith_short_16: 6SPZ3MXHIMJ6HQV2 · pith_short_8: 6SPZ3MXH

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/6SPZ3MXHIMJ6HQV2HH4HHJPUKB \
  | 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: f49f9db2e74313e3c2ba39f873a5f45050e0710a67734c9268f4f2dc0d6fb284

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bf7ce2781a6628ee42ae782746609fd29afe46d180498b3cb9a4a784758ef864",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2023-02-10T00:21:14Z",
    "title_canon_sha256": "68691b14b460599617279190910320abe5441a2c34f9941e9601b61c4b4a61dd"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2302.04987",
    "kind": "arxiv",
    "version": 2
  }
}