Pith Number

pith:FLQPLIPK

pith:2025:FLQPLIPKERX7QMQSHCPL2PQ2VT

not attested not anchored not stored refs pending

On Negative-aware Preference Optimization for Recommendation

Chenlu Ding, Daoxuan Liu, Haitao Wang, Jiancan Wu, Junkang Wu, Xiang Wang, Xingxing Wang, Xingyu Hu, Yongkang Wang

arxiv:2508.09653 v1 · 2025-08-13 · cs.IR · 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{FLQPLIPKERX7QMQSHCPL2PQ2VT}

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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	2026-07-05T11:53:19.157920Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2ae0f5a1ea246ff83212389ebd3e1aace6c4c9ce056f1b9548cb96bb32180f23

Aliases

arxiv: 2508.09653 · arxiv_version: 2508.09653v1 · doi: 10.48550/arxiv.2508.09653 · pith_short_12: FLQPLIPKERX7 · pith_short_16: FLQPLIPKERX7QMQS · pith_short_8: FLQPLIPK

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/FLQPLIPKERX7QMQSHCPL2PQ2VT \
  | 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: 2ae0f5a1ea246ff83212389ebd3e1aace6c4c9ce056f1b9548cb96bb32180f23

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "915e6ab2bcfb1bb52cea6ff426a763628aabed50925ed78396b6baed1d1ef51c",
    "cross_cats_sorted": [
      "cs.AI"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IR",
    "submitted_at": "2025-08-13T09:37:07Z",
    "title_canon_sha256": "4d46d6be43f2e723ae669de0d71a60d0647f82389aed637438f80fa29da7247d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2508.09653",
    "kind": "arxiv",
    "version": 1
  }
}