Pith Number

pith:K7Z4FNH5

pith:2022:K7Z4FNH5LMH6Q63NOPQ3ZLRNI5

not attested not anchored not stored refs pending

S-OPT: A Points Selection Algorithm for Hyper-Reduction in Reduced Order Models

Dylan Matthew Copeland, Jessica T. Lauzon, Kevin Huynh, Siu Wun Cheung, Yeonjong Shin, Youngsoo Choi

arxiv:2203.16494 v1 · 2022-03-29 · math.NA · cs.CE · 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{K7Z4FNH5LMH6Q63NOPQ3ZLRNI5}

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.

Cited by

1 paper in Pith

Tensor-based empirical interpolation method and its application in model reduction

Receipt and verification

First computed	2026-07-05T08:51:39.862606Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

57f3c2b4fd5b0fe87b6d73e1bcae2d474419d019f675145ab57d2a498f24b606

Aliases

arxiv: 2203.16494 · arxiv_version: 2203.16494v1 · doi: 10.48550/arxiv.2203.16494 · pith_short_12: K7Z4FNH5LMH6 · pith_short_16: K7Z4FNH5LMH6Q63N · pith_short_8: K7Z4FNH5

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/K7Z4FNH5LMH6Q63NOPQ3ZLRNI5 \
  | 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: 57f3c2b4fd5b0fe87b6d73e1bcae2d474419d019f675145ab57d2a498f24b606

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bac0d5318219b0507378a767f7ae5813b6f062e9b309543cca2c576d9c9d4a95",
    "cross_cats_sorted": [
      "cs.CE",
      "cs.NA"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2022-03-29T05:20:17Z",
    "title_canon_sha256": "84ffabb5d4f31e4ef4172ac85565b1fc1a658c3d55e85758cc1f93b0f58d873a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2203.16494",
    "kind": "arxiv",
    "version": 1
  }
}