Pith Number

pith:OSCZP2DB

pith:2026:OSCZP2DBBNGPW6HL5OOKRGH4HY

not attested not anchored not stored refs pending

A domain decomposition online-learning-enhanced nonlinear elimination preconditioner

Li Luo, Linyan Gu, Pai Zhang

arxiv:2607.17723 v1 · 2026-07-20 · math.NA · cs.NA

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{OSCZP2DBBNGPW6HL5OOKRGH4HY}

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	2026-07-21T02:21:56.518787Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

748597e8610b4cfb78ebeb9ca898fc3e2b7663863ffc0acf3048ab7381b283d1

Aliases

arxiv: 2607.17723 · arxiv_version: 2607.17723v1 · doi: 10.48550/arxiv.2607.17723 · pith_short_12: OSCZP2DBBNGP · pith_short_16: OSCZP2DBBNGPW6HL · pith_short_8: OSCZP2DB

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/OSCZP2DBBNGPW6HL5OOKRGH4HY \
  | 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: 748597e8610b4cfb78ebeb9ca898fc3e2b7663863ffc0acf3048ab7381b283d1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cb0fe0df6cec81d614114dfd919ab5e73525514a7a204ad75fe912cd1ae86e3c",
    "cross_cats_sorted": [
      "cs.NA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2026-07-20T09:14:24Z",
    "title_canon_sha256": "f4d4cc2660c29197c4d24c328f9a1385a4a2f5e0a0c5105006d196c331946c8d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2607.17723",
    "kind": "arxiv",
    "version": 1
  }
}