Pith Number

pith:5732KLMA

pith:2025:5732KLMANDJXBCU5DFAN2Z6BWK

not attested not anchored not stored refs pending

MedGround-R1: Advancing Medical Image Grounding via Spatial-Semantic Rewarded Group Relative Policy Optimization

Hongqiu Wang, Hualiang Wang, Huihui Xu, Jiyao Liu, Junjun He, Junzhi Ning, Lei Zhu, Lihao Liu, Wei Li, Xiaomeng Li, Ying Chen, Yuanpeng Nie

arxiv:2507.02994 v1 · 2025-07-01 · cs.LG · cs.CV

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{5732KLMANDJXBCU5DFAN2Z6BWK}

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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.

Cited by

1 paper in Pith

From Failure to Feedback: Group Revision Unlocks Hard Cases in Object-Level Grounding

Receipt and verification

First computed	2026-07-05T11:31:50.415530Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

eff7a52d8068d3708a9d1940dd67c1b28553ffd6c2478ee022a0269bc5b87a97

Aliases

arxiv: 2507.02994 · arxiv_version: 2507.02994v1 · doi: 10.48550/arxiv.2507.02994 · pith_short_12: 5732KLMANDJX · pith_short_16: 5732KLMANDJXBCU5 · pith_short_8: 5732KLMA

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/5732KLMANDJXBCU5DFAN2Z6BWK \
  | 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: eff7a52d8068d3708a9d1940dd67c1b28553ffd6c2478ee022a0269bc5b87a97

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7bca143c3bea535bb7470068ae82af9327a6f1d36c64c35c6d872416fadc059b",
    "cross_cats_sorted": [
      "cs.CV"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2025-07-01T21:51:42Z",
    "title_canon_sha256": "7fe7899bd7b52899ab5995cdf1da548d5c0fbfa757e7aa091690c1e4e3398dc7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2507.02994",
    "kind": "arxiv",
    "version": 1
  }
}