Pith Number

pith:K3SLPGCI

pith:2025:K3SLPGCIZIOFUZ2IFG2LHXPMTS

not attested not anchored not stored refs pending

Reinforcement Learning Closures for Underresolved Partial Differential Equations using Synthetic Data

Francis J. Alexander, Lothar Heimbach, Petr Karnakov, Petros Koumoutsakos, Sebastian Kaltenbach

arxiv:2505.11308 v1 · 2025-05-16 · cs.LG · physics.comp-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{K3SLPGCIZIOFUZ2IFG2LHXPMTS}

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	2026-06-11T01:10:26.478264Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

56e4b79848ca1c5a674829b4b3ddec9cb539d53403f2792aeae6a2f822c4f1ae

Aliases

arxiv: 2505.11308 · arxiv_version: 2505.11308v1 · doi: 10.48550/arxiv.2505.11308 · pith_short_12: K3SLPGCIZIOF · pith_short_16: K3SLPGCIZIOFUZ2I · pith_short_8: K3SLPGCI

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/K3SLPGCIZIOFUZ2IFG2LHXPMTS \
  | 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: 56e4b79848ca1c5a674829b4b3ddec9cb539d53403f2792aeae6a2f822c4f1ae

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ed4271987876928497d357cfd97fd5d1a7636c6d4c79c03756410071af4a6cf1",
    "cross_cats_sorted": [
      "physics.comp-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2025-05-16T14:34:42Z",
    "title_canon_sha256": "f5d1b8b8883ac35aab60d47a71a9b6c3e19e59b93cb4579de265a1b756208e0d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2505.11308",
    "kind": "arxiv",
    "version": 1
  }
}