Pith Number

pith:OGDAIWHO

pith:2025:OGDAIWHOMUKFEBL2AOJFOARAJN

not attested not anchored not stored refs pending

POPri: Private Federated Learning using Preference-Optimized Synthetic Data

Charlie Hou, Daniel Lazar, Giulia Fanti, Mei-Yu Wang, Yige Zhu

arxiv:2504.16438 v2 · 2025-04-23 · cs.LG · cs.AI · cs.CR · cs.DC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{OGDAIWHOMUKFEBL2AOJFOARAJN}

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

3 papers in Pith

Concordia: Self-Improving Synthetic Tables for Federated LLMs

Self-Improving Tabular Language Models via Iterative Reward-Guided Post-Training

Receipt and verification

First computed	2026-07-05T11:56:03.319562Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

71860458ee651452057a03925702204b5fdb84515f892ab72ab74d4ba51e6bab

Aliases

arxiv: 2504.16438 · arxiv_version: 2504.16438v2 · doi: 10.48550/arxiv.2504.16438 · pith_short_12: OGDAIWHOMUKF · pith_short_16: OGDAIWHOMUKFEBL2 · pith_short_8: OGDAIWHO

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/OGDAIWHOMUKFEBL2AOJFOARAJN \
  | 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: 71860458ee651452057a03925702204b5fdb84515f892ab72ab74d4ba51e6bab

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "defdc1cd6ddd2047bd8c1aca872a27e474c7561eb6296de4857e9863060789ea",
    "cross_cats_sorted": [
      "cs.AI",
      "cs.CR",
      "cs.DC"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2025-04-23T05:57:20Z",
    "title_canon_sha256": "b548c8d38087a1f03de18415b73e5ca385a8ca18315c80e026ac6b7efda199c9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2504.16438",
    "kind": "arxiv",
    "version": 2
  }
}