Pith Number

pith:E2U3DUTL

pith:2026:E2U3DUTLEA2JZZKBGUN6Z32IUS

not attested not anchored not stored refs pending

SpecGradFilter: A Spectral Gradient Filtering Framework for Taming Federated Heterogeneity

Dandan Guo, Liyang Yuan, Peter Richtarik, Yibo Yang, Zhouchen Lin

arxiv:2607.04189 v1 · 2026-07-05 · cs.LG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{E2U3DUTLEA2JZZKBGUN6Z32IUS}

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.

Receipt and verification

First computed	2026-07-07T02:19:01.652846Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

26a9b1d26b20349ce541351becef48a49ce6f54d12eb494e50bbc8572403a23b

Aliases

arxiv: 2607.04189 · arxiv_version: 2607.04189v1 · doi: 10.48550/arxiv.2607.04189 · pith_short_12: E2U3DUTLEA2J · pith_short_16: E2U3DUTLEA2JZZKB · pith_short_8: E2U3DUTL

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/E2U3DUTLEA2JZZKBGUN6Z32IUS \
  | 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: 26a9b1d26b20349ce541351becef48a49ce6f54d12eb494e50bbc8572403a23b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "da4c2021526cf5e78255bdb69d4b38b4a23b0fa9ea3d74b2d1386b79e547dc78",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2026-07-05T09:23:35Z",
    "title_canon_sha256": "b74ea696c6970de5435290800fd4a685cef5083b3a99a4b1b5f9459ba43b374d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2607.04189",
    "kind": "arxiv",
    "version": 1
  }
}