Pith Number

pith:4IX73U4U

pith:2026:4IX73U4UHF62MKT7H5V4JACSMG

not attested not anchored not stored refs pending

R$^2$-Searcher: Calibrating Retrieval and Reasoning Boundaries for Agentic Search

Junyi Li, Maolin Wang, Sheng Zhang, Wenlin Zhang, Xiangyu Zhao, Xiaowei Qian, Yichao Wang, Yingyi Zhang, Yong Liu

arxiv:2606.28566 v1 · 2026-06-26 · cs.IR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{4IX73U4UHF62MKT7H5V4JACSMG}

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	2026-06-30T00:15:19.053436Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e22ffdd394397da62a7f3f6bc4805261a6fe95a32b9f14850b255d524281e9df

Aliases

arxiv: 2606.28566 · arxiv_version: 2606.28566v1 · doi: 10.48550/arxiv.2606.28566 · pith_short_12: 4IX73U4UHF62 · pith_short_16: 4IX73U4UHF62MKT7 · pith_short_8: 4IX73U4U

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/4IX73U4UHF62MKT7H5V4JACSMG \
  | 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: e22ffdd394397da62a7f3f6bc4805261a6fe95a32b9f14850b255d524281e9df

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a6fa2a3b5e474fd84c59da43c161f1921b9fce99d10012f6606714ab5b44d6be",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IR",
    "submitted_at": "2026-06-26T19:44:34Z",
    "title_canon_sha256": "2ca3481d2a5ec7a4c0797c489929cbe46d4ce82bf4a022bdb431785ee80aa80c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2606.28566",
    "kind": "arxiv",
    "version": 1
  }
}