Pith Number

pith:XEFLY7S2

pith:2025:XEFLY7S2QND6PUP2QQ5CVZAU5L

not attested not anchored not stored refs pending

BPO: Revisiting Preference Modeling in Direct Preference Optimization

Bingyang Li, Chuang Liu, Lin Sun, Ning Wu, Peng Liu, Weijia Lu

arxiv:2506.03557 v1 · 2025-06-04 · 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{XEFLY7S2QND6PUP2QQ5CVZAU5L}

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	2026-07-05T11:15:29.767161Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b90abc7e5a8347e7d1fa843a2ae414ead878cf0cd02d4566a990b0fb45b986dd

Aliases

arxiv: 2506.03557 · arxiv_version: 2506.03557v1 · doi: 10.48550/arxiv.2506.03557 · pith_short_12: XEFLY7S2QND6 · pith_short_16: XEFLY7S2QND6PUP2 · pith_short_8: XEFLY7S2

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/XEFLY7S2QND6PUP2QQ5CVZAU5L \
  | 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: b90abc7e5a8347e7d1fa843a2ae414ead878cf0cd02d4566a990b0fb45b986dd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8a0f15c0fdb01a601f053484f5ed6b688be5c3b6bc79e2b5097be75ea2155f04",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2025-06-04T04:21:01Z",
    "title_canon_sha256": "62f8a5b6cce7072fc103518a92d7bbf36c502319c1ac1e8832b2856197490771"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2506.03557",
    "kind": "arxiv",
    "version": 1
  }
}