Pith Number

pith:USC22ANO

pith:2026:USC22ANOYHWQFKVTFVIBRMOTOP

not attested not anchored not stored refs pending

Parallel Newton methods for the continuous quadratic knapsack problem: A Jacobi and Gauss-Seidel tale

Leonardo D. Secchin, Paulo J. S. Silva

arxiv:2603.15910 v2 · 2026-03-16 · 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{USC22ANOYHWQFKVTFVIBRMOTOP}

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	2026-05-20T01:05:11.277560Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a485ad01aec1ed02aab32d5018b1d373ecf09e1f5ae915e3757e533f9540818e

Aliases

arxiv: 2603.15910 · arxiv_version: 2603.15910v2 · doi: 10.48550/arxiv.2603.15910 · pith_short_12: USC22ANOYHWQ · pith_short_16: USC22ANOYHWQFKVT · pith_short_8: USC22ANO

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/USC22ANOYHWQFKVTFVIBRMOTOP \
  | 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: a485ad01aec1ed02aab32d5018b1d373ecf09e1f5ae915e3757e533f9540818e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7b4695a9d03d1224f3e969c794c303799387d7536d9d39b74f250acc65ba986c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2026-03-16T20:55:38Z",
    "title_canon_sha256": "123ef13f7f30095f8121e395e05d01caac4af78456ee3e8e013bb512c0ab83d4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2603.15910",
    "kind": "arxiv",
    "version": 2
  }
}