Pith Number

pith:CIULPY4T

pith:2025:CIULPY4TGYC6ZHDCJ3YDT4ED4N

not attested not anchored not stored refs pending

Multi-fidelity Learning of Reduced Order Models for Parabolic PDE Constrained Optimization

Benedikt Klein, Mario Ohlberger

arxiv:2503.21252 v1 · 2025-03-27 · math.OC · cs.NA · math.NA

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Add to your LaTeX paper

\usepackage{pith}
\pithnumber{CIULPY4TGYC6ZHDCJ3YDT4ED4N}

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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

Adaptive Reduced Basis Trust Region Methods for Parabolic Inverse Problems

Receipt and verification

First computed	2026-07-05T10:40:22.086779Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1228b7e3933605ec9c624ef039f083e370163bee315e949297615f115c0d1822

Aliases

arxiv: 2503.21252 · arxiv_version: 2503.21252v1 · doi: 10.48550/arxiv.2503.21252 · pith_short_12: CIULPY4TGYC6 · pith_short_16: CIULPY4TGYC6ZHDC · pith_short_8: CIULPY4T

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/CIULPY4TGYC6ZHDCJ3YDT4ED4N \
  | 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: 1228b7e3933605ec9c624ef039f083e370163bee315e949297615f115c0d1822

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0fbd2c627228ccabd1e53167813d484bf6b0e0e8dd8c1f43da3fbd06f0624a6a",
    "cross_cats_sorted": [
      "cs.NA",
      "math.NA"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2025-03-27T08:18:00Z",
    "title_canon_sha256": "cf19641f3234e6acb3bdb7e64bcb839c1c33749da199bf3c83e4ea242d3155ea"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2503.21252",
    "kind": "arxiv",
    "version": 1
  }
}