Pith Number

pith:N3UDQ6VA

pith:2021:N3UDQ6VAEJKBVQJQWRQ6NXWYAB

not attested not anchored not stored refs pending

Data Valuation for Vertical Federated Learning: A Model-free and Privacy-preserving Method

Junjie Wu, Leye Wang, Xiao Fang, Xiao Han

arxiv:2112.08364 v3 · 2021-12-15 · 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{N3UDQ6VAEJKBVQJQWRQ6NXWYAB}

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	2026-07-05T07:29:59.875262Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6ee8387aa022541ac130b461e6ded800755763a81a3b0a4e83cc25afa835a16f

Aliases

arxiv: 2112.08364 · arxiv_version: 2112.08364v3 · doi: 10.48550/arxiv.2112.08364 · pith_short_12: N3UDQ6VAEJKB · pith_short_16: N3UDQ6VAEJKBVQJQ · pith_short_8: N3UDQ6VA

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/N3UDQ6VAEJKBVQJQWRQ6NXWYAB \
  | 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: 6ee8387aa022541ac130b461e6ded800755763a81a3b0a4e83cc25afa835a16f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0febea25311471f260aeaba9bf9dfc10c478fdf353cd0407d6c4db3d7cec7957",
    "cross_cats_sorted": [
      "cs.AI"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2021-12-15T02:42:28Z",
    "title_canon_sha256": "8f69ffbcb033fc0bab078067b0123c1cc02172618c91684a61fa0a3f75a17079"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2112.08364",
    "kind": "arxiv",
    "version": 3
  }
}