Pith Number

pith:PIUA45WT

pith:2025:PIUA45WT2EGDZ6WUTAQAOKOWJV

not attested not anchored not stored refs pending

Least-Squares-Embedded Optimization for Accelerated Convergence of PINNs in Acoustic Wavefield Simulations

David Pardo, Mohammad Mahdi Abedi, Tariq Alkhalifah

arxiv:2504.16553 v1 · 2025-04-23 · cs.LG · physics.comp-ph · physics.geo-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{PIUA45WT2EGDZ6WUTAQAOKOWJV}

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	2026-07-05T10:53:01.459905Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7a280e76d3d10c3cfad498200729d64d7dd5c7ada87a580e293cfedc50aa2a17

Aliases

arxiv: 2504.16553 · arxiv_version: 2504.16553v1 · doi: 10.48550/arxiv.2504.16553 · pith_short_12: PIUA45WT2EGD · pith_short_16: PIUA45WT2EGDZ6WU · pith_short_8: PIUA45WT

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/PIUA45WT2EGDZ6WUTAQAOKOWJV \
  | 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: 7a280e76d3d10c3cfad498200729d64d7dd5c7ada87a580e293cfedc50aa2a17

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "75144d4d935fe765465c5cad9965b3ca333a1c733026fb1eff9a6fda78d21c29",
    "cross_cats_sorted": [
      "physics.comp-ph",
      "physics.geo-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2025-04-23T09:32:14Z",
    "title_canon_sha256": "5cb3ef42ba8d7c1c7e87a593249d8bfbe5833c45fd38e128bbd395359e6069e1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2504.16553",
    "kind": "arxiv",
    "version": 1
  }
}