Pith Number

pith:5EQUQ2XT

pith:2025:5EQUQ2XTPPZXNI2QYNDEINTT6A

not attested not anchored not stored refs pending

SPA: Towards More Stealth and Persistent Backdoor Attacks in Federated Learning

Bosen Rao, Chengcheng Zhu, Jiale Zhang, Sheng Zhong, Ye Li, Yunlong Mao

arxiv:2506.20931 v1 · 2025-06-26 · cs.CR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{5EQUQ2XTPPZXNI2QYNDEINTT6A}

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	2026-07-05T11:27:36.293508Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e921486af37bf376a350c346443673f027e99fdef67a527eb8382573ae50f3e2

Aliases

arxiv: 2506.20931 · arxiv_version: 2506.20931v1 · doi: 10.48550/arxiv.2506.20931 · pith_short_12: 5EQUQ2XTPPZX · pith_short_16: 5EQUQ2XTPPZXNI2Q · pith_short_8: 5EQUQ2XT

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/5EQUQ2XTPPZXNI2QYNDEINTT6A \
  | 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: e921486af37bf376a350c346443673f027e99fdef67a527eb8382573ae50f3e2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6007fdf8f08b8e5e026b12f4132cd2a74efb8ab11a777cdcc0462021711e2e70",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CR",
    "submitted_at": "2025-06-26T01:33:14Z",
    "title_canon_sha256": "9323cc8bf626c1020f3a0b25b0eb2a10978c25271734ca9d9c3106b890770632"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2506.20931",
    "kind": "arxiv",
    "version": 1
  }
}