Pith Number

pith:B7CFVP34

pith:2025:B7CFVP343MHA4SLWR2A3FQCZBE

not attested not anchored not stored refs pending

Is RL fine-tuning harder than regression? A PDE learning approach for diffusion models

Wenlong Mou

arxiv:2509.02528 v1 · 2025-09-02 · cs.LG · math.OC · math.PR · math.ST · stat.ML · stat.TH

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{B7CFVP343MHA4SLWR2A3FQCZBE}

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	2026-07-05T12:03:40.306981Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0fc45abf7cdb0e0e49768e81b2c059091f2e5a6345a93f3d3ac841125d4c4fb2

Aliases

arxiv: 2509.02528 · arxiv_version: 2509.02528v1 · doi: 10.48550/arxiv.2509.02528 · pith_short_12: B7CFVP343MHA · pith_short_16: B7CFVP343MHA4SLW · pith_short_8: B7CFVP34

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/B7CFVP343MHA4SLWR2A3FQCZBE \
  | 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: 0fc45abf7cdb0e0e49768e81b2c059091f2e5a6345a93f3d3ac841125d4c4fb2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "43f48a7099519ee11b7c1e102b6182da9c442445db91be9840fbe8afd0dc473a",
    "cross_cats_sorted": [
      "math.OC",
      "math.PR",
      "math.ST",
      "stat.ML",
      "stat.TH"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2025-09-02T17:29:23Z",
    "title_canon_sha256": "b2ca7bf26cdf9314987e3c7146d93ee35ac3b551e2f8d6b60918acc5b750573b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2509.02528",
    "kind": "arxiv",
    "version": 1
  }
}