Pith Number

pith:OBEFFBWK

pith:2020:OBEFFBWKWS2GZBLGU6HHH45QGB

not attested not anchored not stored refs pending

Ditto: Fair and Robust Federated Learning Through Personalization

Ahmad Beirami, Shengyuan Hu, Tian Li, Virginia Smith

arxiv:2012.04221 v3 · 2020-12-08 · 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{OBEFFBWKWS2GZBLGU6HHH45QGB}

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

Tuning-Free Efficient Estimation for Multi-Source Data via Covariance-Aware Shrinkage

OmniISR: A Unified Framework for Centralized and Federated Learning via Intermediate Supervision and Regularization

Receipt and verification

First computed	2026-07-05T02:49:52.017131Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

70485286cab4b46c8566a78e73f3b030403358746ef04161a98a32147e04b56d

Aliases

arxiv: 2012.04221 · arxiv_version: 2012.04221v3 · doi: 10.48550/arxiv.2012.04221 · pith_short_12: OBEFFBWKWS2G · pith_short_16: OBEFFBWKWS2GZBLG · pith_short_8: OBEFFBWK

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/OBEFFBWKWS2GZBLGU6HHH45QGB \
  | 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: 70485286cab4b46c8566a78e73f3b030403358746ef04161a98a32147e04b56d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c088bcbf0d73ccd5ff7a552fcb1a87bf04660ffdef165c83f68292612153fe67",
    "cross_cats_sorted": [
      "stat.ML"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2020-12-08T05:15:39Z",
    "title_canon_sha256": "004f73cd697f65689c777017f60111e3af857d7f21ae585339e7baf7725122bc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2012.04221",
    "kind": "arxiv",
    "version": 3
  }
}