Pith Number

pith:FNKBILTQ

pith:2026:FNKBILTQR3KMYOYTFHJKP6UNXA

not attested not anchored not stored refs pending

Abstention as an Action Can Kill Both the Reward Gradient and the KL Anchor: Collapse Law and Repair for Error-Penalized Reinforcement Learning

Chenyang Yu, Weida Zhao, Xujun Che, Yuchen Yuan

arxiv:2608.00301 v1 · 2026-07-31 · cs.LG · cs.CL

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{FNKBILTQR3KMYOYTFHJKP6UNXA}

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	2026-08-04T00:35:00.343178Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2b54142e708ed4cc3b1329d2a7fa8db80bfbddfd174df1f39e9ff090192ad5f1

Aliases

arxiv: 2608.00301 · arxiv_version: 2608.00301v1 · doi: 10.48550/arxiv.2608.00301 · pith_short_12: FNKBILTQR3KM · pith_short_16: FNKBILTQR3KMYOYT · pith_short_8: FNKBILTQ

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/FNKBILTQR3KMYOYTFHJKP6UNXA \
  | 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: 2b54142e708ed4cc3b1329d2a7fa8db80bfbddfd174df1f39e9ff090192ad5f1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2e2057b4249a1c94afa7a1f2c633fa9791c7a932e1774dbf97aa10faab0acbc0",
    "cross_cats_sorted": [
      "cs.CL"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2026-07-31T21:31:07Z",
    "title_canon_sha256": "0db57c36df70a20447f6d8038419df64d9f35ec6768c3bbe1fc06a09d3148309"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2608.00301",
    "kind": "arxiv",
    "version": 1
  }
}