Pith Number

pith:U22BN3EF

pith:2021:U22BN3EFPYHXEMODENCQFNAITX

not attested not anchored not stored refs pending

FedLab: A Flexible Federated Learning Framework

Dun Zeng, Hui Wang, Siqi Liang, Xiangjing Hu, Zenglin Xu

arxiv:2107.11621 v4 · 2021-07-24 · 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{U22BN3EFPYHXEMODENCQFNAITX}

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	2026-07-05T04:16:52.277208Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a6b416ec857e0f7231c3234502b4089dd4bfa1e7b69386a7dc4f5f366559a302

Aliases

arxiv: 2107.11621 · arxiv_version: 2107.11621v4 · doi: 10.48550/arxiv.2107.11621 · pith_short_12: U22BN3EFPYHX · pith_short_16: U22BN3EFPYHXEMOD · pith_short_8: U22BN3EF

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/U22BN3EFPYHXEMODENCQFNAITX \
  | 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: a6b416ec857e0f7231c3234502b4089dd4bfa1e7b69386a7dc4f5f366559a302

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8990d5b93483eb91adef28150188b3bd8705c01cf235d450d48b2722308b6780",
    "cross_cats_sorted": [
      "cs.AI"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2021-07-24T14:34:02Z",
    "title_canon_sha256": "c87f875edaaeb023e49f1bb697e89e66e983c03ed922b3635ae7a9cabee33e4a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2107.11621",
    "kind": "arxiv",
    "version": 4
  }
}