Pith Number

pith:S4BSCEPM

pith:2026:S4BSCEPMKXZY7TK4HESDR2C655

not attested not anchored not stored refs pending

A smoothing extended sequential quadratic method for difference-of-convex optimization over a convex composite inequality constraint

Jiefeng Xu, Ting Kei Pong, Yongle Zhang

arxiv:2606.13343 v1 · 2026-06-11 · 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{S4BSCEPMKXZY7TK4HESDR2C655}

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	2026-06-12T01:09:53.490480Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

97032111ec55f38fcd5c392438e85eef706394c02c27676e964826bac157169a

Aliases

arxiv: 2606.13343 · arxiv_version: 2606.13343v1 · doi: 10.48550/arxiv.2606.13343 · pith_short_12: S4BSCEPMKXZY · pith_short_16: S4BSCEPMKXZY7TK4 · pith_short_8: S4BSCEPM

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/S4BSCEPMKXZY7TK4HESDR2C655 \
  | 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: 97032111ec55f38fcd5c392438e85eef706394c02c27676e964826bac157169a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b578a3e2e567df04648d44731acede073555be71f0891a66eefccb423c4e22b6",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2026-06-11T13:32:13Z",
    "title_canon_sha256": "f90049fcdacefbfd54e8292001181b2e10b353ee503f83fe6aa3583b0097dd69"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2606.13343",
    "kind": "arxiv",
    "version": 1
  }
}