Pith Number

pith:3PMPXYAU

pith:2020:3PMPXYAUA63WSF4EDID5XJ76AL

not attested not anchored not stored refs pending

Federated Residual Learning

Alekh Agarwal, Chen-Yu Wei, John Langford

arxiv:2003.12880 v1 · 2020-03-28 · 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{3PMPXYAUA63WSF4EDID5XJ76AL}

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

1 paper in Pith

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

Receipt and verification

First computed	2026-07-05T00:51:21.687483Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

dbd8fbe01407b76917841a07dba7fe02e0e30b87ea5fb310cad75e3a664789d9

Aliases

arxiv: 2003.12880 · arxiv_version: 2003.12880v1 · doi: 10.48550/arxiv.2003.12880 · pith_short_12: 3PMPXYAUA63W · pith_short_16: 3PMPXYAUA63WSF4E · pith_short_8: 3PMPXYAU

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/3PMPXYAUA63WSF4EDID5XJ76AL \
  | 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: dbd8fbe01407b76917841a07dba7fe02e0e30b87ea5fb310cad75e3a664789d9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "941cff54094168be0fea71ea1f55c2f31822153e02015fdeb201968a80f83ed5",
    "cross_cats_sorted": [
      "stat.ML"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2020-03-28T19:55:24Z",
    "title_canon_sha256": "d877ad9d9a366091ec79b00bcd7f66ffa64a840ea1d6c8a0b81a592300801589"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2003.12880",
    "kind": "arxiv",
    "version": 1
  }
}