Pith Number

pith:UTCXYALO

pith:2025:UTCXYALO7OUIRATAIH6MDJIFZU

not attested not anchored not stored refs pending

InfiFPO: Implicit Model Fusion via Preference Optimization in Large Language Models

Fei Wu, Hongxia Yang, Qi Zhou, Yanggan Gu, Yiming Zhang, Yuanyi Wang, Zhaoyi Yan

arxiv:2505.13878 v3 · 2025-05-20 · 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{UTCXYALO7OUIRATAIH6MDJIFZU}

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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.

Cited by

5 papers in Pith

E-PMQ: Expert-Guided Post-Merge Quantization with Merged-Weight Anchoring

Model Merging Scaling Laws in Large Language Models

Discovering Physical Directions in Weight Space: Composing Neural PDE Experts

FeatCal: Feature Calibration for Post-Merging Models

Geometry Conflict: Explaining and Controlling Forgetting in LLM Continual Post-Training

Receipt and verification

First computed	2026-05-26T01:03:12.705951Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a4c57c016efba888826041fcc1a505cd3a375bc09eccc43448e81a2912289b35

Aliases

arxiv: 2505.13878 · arxiv_version: 2505.13878v3 · doi: 10.48550/arxiv.2505.13878 · pith_short_12: UTCXYALO7OUI · pith_short_16: UTCXYALO7OUIRATA · pith_short_8: UTCXYALO

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/UTCXYALO7OUIRATAIH6MDJIFZU \
  | 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: a4c57c016efba888826041fcc1a505cd3a375bc09eccc43448e81a2912289b35

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "660a860491d8a36a1d59c7def7f2bade8e683f79a5aab0f29b21bcfaafdd0a55",
    "cross_cats_sorted": [
      "cs.CL"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2025-05-20T03:32:37Z",
    "title_canon_sha256": "5fe2cd4904e2adb00ac64f1edc0b7a71f8ca5196eadf6de6cd08ec98a48ad5dc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2505.13878",
    "kind": "arxiv",
    "version": 3
  }
}