Pith Number

pith:RDDLS6PM

pith:2021:RDDLS6PM5N5DUXVFXXMXH5PSX7

not attested not anchored not stored refs pending

Federated Submodel Optimization for Hot and Cold Data Features

Chaoyue Niu, Chengfei Lv, Fan Wu, Guihai Chen, Shaojie Tang, Yanghe Feng, Yucheng Ding

arxiv:2109.07704 v4 · 2021-09-16 · cs.LG · cs.AI

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{RDDLS6PM5N5DUXVFXXMXH5PSX7}

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	2026-07-05T05:58:14.644444Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

88c6b979eceb7a3a5ea5bdd973f5f2bfd3e087fa90485bdc561cb8fb2fa4e2d8

Aliases

arxiv: 2109.07704 · arxiv_version: 2109.07704v4 · doi: 10.48550/arxiv.2109.07704 · pith_short_12: RDDLS6PM5N5D · pith_short_16: RDDLS6PM5N5DUXVF · pith_short_8: RDDLS6PM

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/RDDLS6PM5N5DUXVFXXMXH5PSX7 \
  | 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: 88c6b979eceb7a3a5ea5bdd973f5f2bfd3e087fa90485bdc561cb8fb2fa4e2d8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4cdfeadf760751aa2359d1df094c06af2bf61bb5a932e5cd312413f2bc27adc6",
    "cross_cats_sorted": [
      "cs.AI"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2021-09-16T03:54:54Z",
    "title_canon_sha256": "5e743858a82aef22669865aecb6ef5eda2a901e430f493c1f3dfbd27f192b978"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2109.07704",
    "kind": "arxiv",
    "version": 4
  }
}