Pith Number

pith:YG52KFST

pith:2026:YG52KFSTNA5AOZRNZQEI5ZLJKG

not attested not anchored not stored refs pending

When RLHF Fails: A Mechanistic Taxonomy of Reward Hacking, Collapse, and Evaluator Gaming

Zelalem Abahana

arxiv:2606.03238 v1 · 2026-06-02 · cs.LG · 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{YG52KFSTNA5AOZRNZQEI5ZLJKG}

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	2026-06-03T01:05:35.724575Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c1bba51653683a07662dcc088ee56951b07663196fefca7a962d3fb5a16220df

Aliases

arxiv: 2606.03238 · arxiv_version: 2606.03238v1 · doi: 10.48550/arxiv.2606.03238 · pith_short_12: YG52KFSTNA5A · pith_short_16: YG52KFSTNA5AOZRN · pith_short_8: YG52KFST

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/YG52KFSTNA5AOZRNZQEI5ZLJKG \
  | 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: c1bba51653683a07662dcc088ee56951b07663196fefca7a962d3fb5a16220df

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c4c2f92a92b99d2ea2daba9c8211f4d513c2915b8d64381c2144e63e7b901a36",
    "cross_cats_sorted": [
      "cs.AI"
    ],
    "license": "http://creativecommons.org/licenses/by-nc-nd/4.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2026-06-02T06:55:52Z",
    "title_canon_sha256": "fb253d5a0f3264a8eebb6ea8cc38257b2defdcd7c246c1b70fa652c03d43dbea"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2606.03238",
    "kind": "arxiv",
    "version": 1
  }
}