Pith Number

pith:IGAMO5MH

pith:2026:IGAMO5MHAG25OHTTEIRJ3COGGT

not attested not anchored not stored refs pending

Multimodal Reward Hacking in Reinforcement Learning

Anmeng Zhang, Jiayu Yao, Lingrui Mei, Shenghua Liu, Songsong Wang, Yiwei Wang, Yuyao Ge, Zhe Sun

arxiv:2607.09492 v1 · 2026-07-10 · 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{IGAMO5MHAG25OHTTEIRJ3COGGT}

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	2026-07-13T01:20:13.700855Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4180c7758701b5d71e7322229d89c634cf319a22576868b640dd2425c26e7246

Aliases

arxiv: 2607.09492 · arxiv_version: 2607.09492v1 · doi: 10.48550/arxiv.2607.09492 · pith_short_12: IGAMO5MHAG25 · pith_short_16: IGAMO5MHAG25OHTT · pith_short_8: IGAMO5MH

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/IGAMO5MHAG25OHTTEIRJ3COGGT \
  | 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: 4180c7758701b5d71e7322229d89c634cf319a22576868b640dd2425c26e7246

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ca7778d85ebd1417bc9c1112e030b23fccc5e6ece9c6ea2213515fc863617382",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.AI",
    "submitted_at": "2026-07-10T15:06:48Z",
    "title_canon_sha256": "c986712418425de964fd09d765efa09d741595da69a78bfcd78e80d613e2a7c3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2607.09492",
    "kind": "arxiv",
    "version": 1
  }
}