Pith Number

pith:E4ERPJN7

pith:2024:E4ERPJN7725RFASZ4WUI5B6GHC

not attested not anchored not stored refs pending

Local surrogate models with reduced dimensionality via overlapping domain decomposition and proper generalized decomposition

Ben J. Evans, Marco Discacciati, Matteo Giacomini

arxiv:2409.08401 v1 · 2024-09-12 · 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{E4ERPJN7725RFASZ4WUI5B6GHC}

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	2026-07-05T09:06:30.596378Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

270917a5bffebb128259e5a88e87c6388ec6cdd49213daf462c31d2b98164ae5

Aliases

arxiv: 2409.08401 · arxiv_version: 2409.08401v1 · doi: 10.48550/arxiv.2409.08401 · pith_short_12: E4ERPJN7725R · pith_short_16: E4ERPJN7725RFASZ · pith_short_8: E4ERPJN7

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/E4ERPJN7725RFASZ4WUI5B6GHC \
  | 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: 270917a5bffebb128259e5a88e87c6388ec6cdd49213daf462c31d2b98164ae5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "70983d37cb7534429c09d7dcc8eb62660164207cde3ecd4eddd584b13cf0deed",
    "cross_cats_sorted": [
      "cs.NA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2024-09-12T21:14:01Z",
    "title_canon_sha256": "1d07fc11ee312c8b4b6be14dae52c9c29c93e0f615fdfa5115f0a70501341d69"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2409.08401",
    "kind": "arxiv",
    "version": 1
  }
}