Pith Number

pith:6PE5W7HS

pith:2026:6PE5W7HSWJVNW54V5K5YNX7SYA

not attested not anchored not stored refs pending

A Structured Review of Reduced Order Modeling for Domain Decomposition Problems: State of the Art and Perspectives

Andreas G. Class, Gianluigi Rozza, Shenhui Ruan

arxiv:2601.09623 v2 · 2026-01-14 · math.NA · cs.NA · physics.flu-dyn

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{6PE5W7HSWJVNW54V5K5YNX7SYA}

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	2026-06-10T01:09:52.566755Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f3c9db7cf2b26adb7795eabb86dff2c02d616a357b997337208dcd777ab73c61

Aliases

arxiv: 2601.09623 · arxiv_version: 2601.09623v2 · doi: 10.48550/arxiv.2601.09623 · pith_short_12: 6PE5W7HSWJVN · pith_short_16: 6PE5W7HSWJVNW54V · pith_short_8: 6PE5W7HS

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/6PE5W7HSWJVNW54V5K5YNX7SYA \
  | 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: f3c9db7cf2b26adb7795eabb86dff2c02d616a357b997337208dcd777ab73c61

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "366c8833efed07e69935622470bb5ae58c5217d79e4711f977b65918cf70e474",
    "cross_cats_sorted": [
      "cs.NA",
      "physics.flu-dyn"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2026-01-14T16:50:13Z",
    "title_canon_sha256": "64eec38fa5b537d42b0a08afc67d848534269c8050f25eb3c8dfaacc2c9a652f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2601.09623",
    "kind": "arxiv",
    "version": 2
  }
}