Pith Number

pith:QKVB7UQO

pith:2022:QKVB7UQOI243WLQRCQFRB64TLC

not attested not anchored not stored refs pending

Using second-order information in gradient sampling methods for nonsmooth optimization

Bennet Gebken

arxiv:2210.04579 v4 · 2022-10-10 · 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{QKVB7UQOI243WLQRCQFRB64TLC}

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	2026-07-05T09:56:33.905880Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

82aa1fd20e46b9bb2e11140b10fb9358b92c2ba534afd226ca4b3b0767d4cfc2

Aliases

arxiv: 2210.04579 · arxiv_version: 2210.04579v4 · doi: 10.48550/arxiv.2210.04579 · pith_short_12: QKVB7UQOI243 · pith_short_16: QKVB7UQOI243WLQR · pith_short_8: QKVB7UQO

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/QKVB7UQOI243WLQRCQFRB64TLC \
  | 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: 82aa1fd20e46b9bb2e11140b10fb9358b92c2ba534afd226ca4b3b0767d4cfc2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a8b11a8371d62c86c5a304c26632b2daafc9af9809cbd37cfc4e812622556033",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2022-10-10T11:32:54Z",
    "title_canon_sha256": "dda44cdacb8b091991e11cd0ad2703364193e4228d7b3fb20cd9150409de54c0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2210.04579",
    "kind": "arxiv",
    "version": 4
  }
}