Pith Number

pith:S26W46AB

pith:2025:S26W46ABJGWR4A2UDYV4QMLYRF

not attested not anchored not stored refs pending

FedTDP: A Privacy-Preserving and Unified Framework for Trajectory Data Preparation via Federated Learning

Lu Chen, Wei Shao, Yunjun Gao, Zhihao Zeng, Ziquan Fang

arxiv:2505.05155 v1 · 2025-05-08 · cs.LG · 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{S26W46ABJGWR4A2UDYV4QMLYRF}

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	2026-07-05T11:00:19.823858Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

96bd6e780149ad1e03541e2bc831788961056b86129f679a6449b6ff6761ebf7

Aliases

arxiv: 2505.05155 · arxiv_version: 2505.05155v1 · doi: 10.48550/arxiv.2505.05155 · pith_short_12: S26W46ABJGWR · pith_short_16: S26W46ABJGWR4A2U · pith_short_8: S26W46AB

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/S26W46ABJGWR4A2UDYV4QMLYRF \
  | 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: 96bd6e780149ad1e03541e2bc831788961056b86129f679a6449b6ff6761ebf7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "691f12ee6e530c82becb582666694cf151cd7154f88c2f8401a5dc1dbf02e244",
    "cross_cats_sorted": [
      "cs.CR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2025-05-08T11:51:23Z",
    "title_canon_sha256": "af196c5d1296f6a250526cb06898fd3de7401cf4518276beeff369b6ea378d79"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2505.05155",
    "kind": "arxiv",
    "version": 1
  }
}