Pith Number

pith:ZKYLIMNS

pith:2025:ZKYLIMNSSKRRSET65OY6LRBDDT

not attested not anchored not stored refs pending

Active-set Newton-MR methods for nonconvex optimization problems with bound constraints

Diaulas S. Marcondes, Ernesto G. Birgin, Geovani N. Grapiglia

arxiv:2508.20967 v1 · 2025-08-28 · 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{ZKYLIMNSSKRRSET65OY6LRBDDT}

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	2026-07-05T12:01:14.320742Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cab0b431b292a319127eebb1e5c4231cc55c9c27e5daacff58bf8676b8dc08a0

Aliases

arxiv: 2508.20967 · arxiv_version: 2508.20967v1 · doi: 10.48550/arxiv.2508.20967 · pith_short_12: ZKYLIMNSSKRR · pith_short_16: ZKYLIMNSSKRRSET6 · pith_short_8: ZKYLIMNS

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/ZKYLIMNSSKRRSET65OY6LRBDDT \
  | 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: cab0b431b292a319127eebb1e5c4231cc55c9c27e5daacff58bf8676b8dc08a0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e558eccea9326195ecff10969ecc53c2864bcc2b6c2f5a504ce890dcd16a95b7",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2025-08-28T16:23:04Z",
    "title_canon_sha256": "6a6bdda1039c2ae1e435a93ced00ccfcdc9683966d168610c5ba9e09d346c47c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2508.20967",
    "kind": "arxiv",
    "version": 1
  }
}