Pith Number

pith:NVPRVY4B

pith:2026:NVPRVY4B3RFTPFI7JI3E5KNVGY

not attested not anchored not stored refs pending

PIML-OFEM: A New Large-Scale Structural Analysis Method Based on Problem-Independent Machine Learning and Overlapping Finite Element Technique

Chang Liu, Changyu Shen, Jingyu Feng, Jin Liu, Tianxing Yang, Xinyang Zhang, Xu Guo, Yang Li, Yilin Guo, Zongliang Du

arxiv:2607.22019 v1 · 2026-07-24 · math.NA · cs.NA · physics.comp-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{NVPRVY4B3RFTPFI7JI3E5KNVGY}

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	2026-07-27T01:20:43.510148Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6d5f1ae381dc4b37951f4a364ea9b5360bb0ecfea968983121a9eea3f5eaaf7e

Aliases

arxiv: 2607.22019 · arxiv_version: 2607.22019v1 · doi: 10.48550/arxiv.2607.22019 · pith_short_12: NVPRVY4B3RFT · pith_short_16: NVPRVY4B3RFTPFI7 · pith_short_8: NVPRVY4B

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/NVPRVY4B3RFTPFI7JI3E5KNVGY \
  | 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: 6d5f1ae381dc4b37951f4a364ea9b5360bb0ecfea968983121a9eea3f5eaaf7e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c7d474a342c43826e23afcef1d541d4fa43c60db3d57d1743eff4cd78527e067",
    "cross_cats_sorted": [
      "cs.NA",
      "physics.comp-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2026-07-24T06:34:10Z",
    "title_canon_sha256": "1c95c723a087ca1312ed239663526e21ee5dc81c25b2ca25bb4848a49950ee8b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2607.22019",
    "kind": "arxiv",
    "version": 1
  }
}