Pith Number

pith:AMSWVV7R

pith:2025:AMSWVV7R3ZLUEX2QU67D7T7LUG

not attested not anchored not stored refs pending

PILAF: Optimal Human Preference Sampling for Reward Modeling

Ariel Kwiatkowski, Julia Kempe, Kunhao Zheng, Yaqi Duan, Yunzhen Feng

arxiv:2502.04270 v1 · 2025-02-06 · cs.LG · stat.ML

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{AMSWVV7R3ZLUEX2QU67D7T7LUG}

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.

Cited by

2 papers in Pith

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$f$-Divergence Regularized RLHF: Two Tales of Sampling and Unified Analyses

Receipt and verification

First computed	2026-07-05T10:10:35.993673Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

03256ad7f1de57425f50a7be3fcfeba19f33676e171e13b2f91ff6585cf56983

Aliases

arxiv: 2502.04270 · arxiv_version: 2502.04270v1 · doi: 10.48550/arxiv.2502.04270 · pith_short_12: AMSWVV7R3ZLU · pith_short_16: AMSWVV7R3ZLUEX2Q · pith_short_8: AMSWVV7R

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/AMSWVV7R3ZLUEX2QU67D7T7LUG \
  | 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: 03256ad7f1de57425f50a7be3fcfeba19f33676e171e13b2f91ff6585cf56983

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5172e6d62e196afda5f791c12e8a0457bfa21c09c3881dc5f9d590210db5d20d",
    "cross_cats_sorted": [
      "stat.ML"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2025-02-06T18:09:00Z",
    "title_canon_sha256": "5b1eaf27f3c669a3c7131d218280947b731dd371dd1aa4871fecfc7746c05366"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2502.04270",
    "kind": "arxiv",
    "version": 1
  }
}