Pith Number

pith:XFPT5LRS

pith:2026:XFPT5LRSSUPNKXO5UU7SHJPEQ7

not attested not anchored not stored refs pending

Quasi-Newton and Krylov Methods for the Solution of Nonconvex Trust-Region Subproblems

Dominique Orban, Jean-Pierre Dussault, Johann Bourhis, Oihan Cordelier, Oussama Mouhtal

arxiv:2605.23761 v1 · 2026-05-22 · 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{XFPT5LRSSUPNKXO5UU7SHJPEQ7}

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	2026-05-25T02:02:31.145354Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b95f3eae32951ed55ddda53f23a5e487d7f27529b54a3ebdcf092aa09e23ade0

Aliases

arxiv: 2605.23761 · arxiv_version: 2605.23761v1 · doi: 10.48550/arxiv.2605.23761 · pith_short_12: XFPT5LRSSUPN · pith_short_16: XFPT5LRSSUPNKXO5 · pith_short_8: XFPT5LRS

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/XFPT5LRSSUPNKXO5UU7SHJPEQ7 \
  | 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: b95f3eae32951ed55ddda53f23a5e487d7f27529b54a3ebdcf092aa09e23ade0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1a82409f05b3b57936bb7cdbac43b4b7630a7f2756c1131dd35b2f09793294c7",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2026-05-22T15:32:55Z",
    "title_canon_sha256": "ccee7e373b9204f558dc23fdb45f9dc45ec1496dbf3f23a4fe11a3cc9736d8df"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2605.23761",
    "kind": "arxiv",
    "version": 1
  }
}