Pith Number

pith:7QAX6MQQ

pith:2026:7QAX6MQQFY2FFUALAECJQFTKW6

not attested not anchored not stored refs pending

S2T-RLHF: Hierarchical Credit Assignment for Stable Preference-Based RLHF

Guanghui Zhu, Limin Wang, Wei Chen, Yafei Li, Yihua Huang

arxiv:2607.18258 v1 · 2026-05-15 · 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{7QAX6MQQFY2FFUALAECJQFTKW6}

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	2026-07-22T00:22:38.986498Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fc017f32102e3452d00b010498166ab78b6db10bf04e1c91c302f453b37de476

Aliases

arxiv: 2607.18258 · arxiv_version: 2607.18258v1 · doi: 10.48550/arxiv.2607.18258 · pith_short_12: 7QAX6MQQFY2F · pith_short_16: 7QAX6MQQFY2FFUAL · pith_short_8: 7QAX6MQQ

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/7QAX6MQQFY2FFUALAECJQFTKW6 \
  | 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: fc017f32102e3452d00b010498166ab78b6db10bf04e1c91c302f453b37de476

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5b070a769b213c7db098c30511e9ebd9fd74e4970fa79b5d7d23f005eab5a5b9",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.AI",
    "submitted_at": "2026-05-15T09:09:57Z",
    "title_canon_sha256": "20e1dd1cdc863b927b565473864922746014e4df30cdfb49e40be546ee5b9359"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2607.18258",
    "kind": "arxiv",
    "version": 1
  }
}