Pith Number

pith:DZLX2FZP

pith:2026:DZLX2FZPQWKNRZYDRYOH4N2TYX

not attested not anchored not stored refs pending

Balancing Functionality and GDPR-Driven Privacy in ISAC Trajectory Sharing

Bin Han, Hans D. Schotten, Zexin Fang, Zhuojun Tian

Fisher Information Density constraint on ISAC trajectories bounds privacy leakage independently of sensing power and post-processing.

arxiv:2604.08743 v2 · 2026-04-09 · eess.SP · cs.NI

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\usepackage{pith}
\pithnumber{DZLX2FZPQWKNRZYDRYOH4N2TYX}

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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.

Claims

C1strongest claim

The proposed FID-constrained trajectory sharing framework bounds the Privacy Leak Ratio (PLR) regardless of sensing power or adversarial post-processing, ensuring that no trajectory segment can be reconstructed beyond a prescribed accuracy threshold.

C2weakest assumption

That a local lower bound on estimation uncertainty enforced through Fisher Information Density supplies hard, model-agnostic privacy guarantees that satisfy GDPR data minimisation independently of the underlying sensing model and any post-processing an adversary may apply.

C3one line summary

The FID-constrained framework bounds Privacy Leak Ratio in ISAC trajectory sharing to provide hard privacy guarantees independent of sensing power while preserving downstream utility.

Receipt and verification

First computed	2026-07-07T01:16:11.874362Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1e577d172f8594d8e7038e1c7e3753c5e53b5a908fea70adbec8b712426817d1

Aliases

arxiv: 2604.08743 · arxiv_version: 2604.08743v2 · doi: 10.48550/arxiv.2604.08743 · pith_short_12: DZLX2FZPQWKN · pith_short_16: DZLX2FZPQWKNRZYD · pith_short_8: DZLX2FZP

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/DZLX2FZPQWKNRZYDRYOH4N2TYX \
  | 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: 1e577d172f8594d8e7038e1c7e3753c5e53b5a908fea70adbec8b712426817d1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "78e0c91a794c5998ca55acdde4cc7fd023098b38ddf3ec1527871ce3d5529d94",
    "cross_cats_sorted": [
      "cs.NI"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "eess.SP",
    "submitted_at": "2026-04-09T20:11:48Z",
    "title_canon_sha256": "9a254449d321dca7f1d240796a034165e9c9b922ee3fb92e7be95e5c07177ff3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2604.08743",
    "kind": "arxiv",
    "version": 2
  }
}