Pith Number

pith:7W6HCK33

pith:2026:7W6HCK33V6VVEYHOLZIAYY6IZY

not attested not anchored not stored refs pending

Coupling-Robust Accuracy in Multiphysics Physics Informed Neural Networks via Kronecker-Preconditioned Optimization

Jaemin Kim, Junghwa Hong, Youngjae Park

arxiv:2605.23391 v1 · 2026-05-22 · cs.LG · cs.NA · math.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{7W6HCK33V6VVEYHOLZIAYY6IZY}

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	2026-05-25T02:01:52.114165Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fdbc712b7bafab5260ee5e500c63c8ce14b81f8a2f831ec82152a979d35c2ea8

Aliases

arxiv: 2605.23391 · arxiv_version: 2605.23391v1 · doi: 10.48550/arxiv.2605.23391 · pith_short_12: 7W6HCK33V6VV · pith_short_16: 7W6HCK33V6VVEYHO · pith_short_8: 7W6HCK33

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/7W6HCK33V6VVEYHOLZIAYY6IZY \
  | 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: fdbc712b7bafab5260ee5e500c63c8ce14b81f8a2f831ec82152a979d35c2ea8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "442c98bd65c4fc14969b8c338fad2a4fc2e608a2bdaabd441bbc79749ff520c5",
    "cross_cats_sorted": [
      "cs.NA",
      "math.NA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2026-05-22T09:01:31Z",
    "title_canon_sha256": "739f423a006893d036bd07ca788b84257c7dccede0cd645bc8414d4f304084a3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2605.23391",
    "kind": "arxiv",
    "version": 1
  }
}