Pith Number

pith:3REMLWLA

pith:2021:3REMLWLAV5XO7CBA7YUHGZXPGU

not attested not anchored not stored refs pending

Fast-adapting and Privacy-preserving Federated Recommender System

Alexander Zhou, Hongzhi Yin, Junliang Yu, Qinyong Wang, Tong Chen, Xiangliang Zhang

arxiv:2104.00919 v3 · 2021-04-02 · cs.IR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{3REMLWLAV5XO7CBA7YUHGZXPGU}

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	2026-07-05T03:13:26.434456Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

dc48c5d960af6eef8820fe287366ef35268fee32a09c439b27277044a5add280

Aliases

arxiv: 2104.00919 · arxiv_version: 2104.00919v3 · doi: 10.48550/arxiv.2104.00919 · pith_short_12: 3REMLWLAV5XO · pith_short_16: 3REMLWLAV5XO7CBA · pith_short_8: 3REMLWLA

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/3REMLWLAV5XO7CBA7YUHGZXPGU \
  | 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: dc48c5d960af6eef8820fe287366ef35268fee32a09c439b27277044a5add280

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0efb698f804b284e54d09984a1e79d9cb0e96a88f625a7c65ad63c4f829a5851",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.IR",
    "submitted_at": "2021-04-02T07:42:02Z",
    "title_canon_sha256": "f70a93d965f43e981cd9174d3deb285892af26047eea1d338dc26674fd4cce74"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2104.00919",
    "kind": "arxiv",
    "version": 3
  }
}