Pith Number

pith:MBZZCRSV

pith:2026:MBZZCRSV7L2YHI3X2JYE4DYRAZ

not attested not anchored not stored refs pending

Why Multi-Step Tool-Use Reinforcement Learning Collapses and How Supervisory Signals Fix It

Huanxuan Liao, Jun Zhao, Kang Liu, Yupu Hao, Zhuoran Jin

arxiv:2606.26027 v1 · 2026-06-24 · cs.CL · 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{MBZZCRSV7L2YHI3X2JYE4DYRAZ}

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	2026-06-25T01:18:46.253694Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6073914655faf583a377d2704e0f11064f7c039c23e919f815369cad510b177f

Aliases

arxiv: 2606.26027 · arxiv_version: 2606.26027v1 · doi: 10.48550/arxiv.2606.26027 · pith_short_12: MBZZCRSV7L2Y · pith_short_16: MBZZCRSV7L2YHI3X · pith_short_8: MBZZCRSV

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/MBZZCRSV7L2YHI3X2JYE4DYRAZ \
  | 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: 6073914655faf583a377d2704e0f11064f7c039c23e919f815369cad510b177f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d51324721f6a2f1578930629015952f3cd6a2944377a7e5fb56f117e1f4bdf99",
    "cross_cats_sorted": [
      "cs.LG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2026-06-24T16:55:56Z",
    "title_canon_sha256": "52fbd8a07f46f0a86434302c4401859cd79d5dd893d59a9b533bc2798b3f59f3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2606.26027",
    "kind": "arxiv",
    "version": 1
  }
}