Pith Number

pith:NBSTXQN4

pith:2025:NBSTXQN4XVAB7LB7AL6TSKM7AU

not attested not anchored not stored refs pending

Reinforcement Learning Fine-Tunes a Sparse Subnetwork in Large Language Models

Andrii Balashov

arxiv:2507.17107 v2 · 2025-07-23 · cs.LG · cs.AI

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{NBSTXQN4XVAB7LB7AL6TSKM7AU}

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	2026-07-05T11:44:52.182768Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

68653bc1bcbd401fac3f02fd39299f0526c60be074053abb8825498f40c774c8

Aliases

arxiv: 2507.17107 · arxiv_version: 2507.17107v2 · doi: 10.48550/arxiv.2507.17107 · pith_short_12: NBSTXQN4XVAB · pith_short_16: NBSTXQN4XVAB7LB7 · pith_short_8: NBSTXQN4

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/NBSTXQN4XVAB7LB7AL6TSKM7AU \
  | 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: 68653bc1bcbd401fac3f02fd39299f0526c60be074053abb8825498f40c774c8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "02de09453dd20d24c85b32f63c9f20a328a07a208c94e8129c90148e01f83bae",
    "cross_cats_sorted": [
      "cs.AI"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2025-07-23T01:02:17Z",
    "title_canon_sha256": "d80c336febb51f6e4d0229c28d38c9cb3d32cb52f65d9faf7c4d78e659d157fe"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2507.17107",
    "kind": "arxiv",
    "version": 2
  }
}