Pith Number

pith:67G7AXID

pith:2026:67G7AXIDSFBUU6NXZQZ6O4SQDH

not attested not anchored not stored refs pending

RL Excursions during Pre-Training: Re-examining Policy Optimization for LLM training

Clara Mohri, David Alvarez-Melis, Rachit Bansal, Sham Kakade, Tian Qin

arxiv:2606.04272 v1 · 2026-06-02 · cs.LG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{67G7AXIDSFBUU6NXZQZ6O4SQDH}

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	2026-06-04T01:09:01.200946Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f7cdf05d0391434a79b7cc33e7725019d95409c0b344a67b917c5e2ea8e1cdaa

Aliases

arxiv: 2606.04272 · arxiv_version: 2606.04272v1 · doi: 10.48550/arxiv.2606.04272 · pith_short_12: 67G7AXIDSFBU · pith_short_16: 67G7AXIDSFBUU6NX · pith_short_8: 67G7AXID

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/67G7AXIDSFBUU6NXZQZ6O4SQDH \
  | 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: f7cdf05d0391434a79b7cc33e7725019d95409c0b344a67b917c5e2ea8e1cdaa

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "af776880cb8ce2c3e4806d9cfd2fe45edaa416f8a331f745c8443fa6169eb135",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2026-06-02T22:55:18Z",
    "title_canon_sha256": "e0a11feb5d8b1cd8d5371e64ca145ef1936b3d87c36083152e984c159318b28e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2606.04272",
    "kind": "arxiv",
    "version": 1
  }
}