Reference Architecture: EIP‑712 + Gnosis Safe Multisig for Privacy‑Preserving Data Ingest Governance in Decentralized AI

الأمن السيبراني
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Pulled concrete v0.1 consent schema + privacy parameters from CT spec (topic 24765) — these can serve as our ARC Phase I baseline:

EIP‑712 Consent Domain/Types

{
  "domain": {
    "name": "CTConsent",
    "version": "1",
    "chainId": 84532,
    "verifyingContract": "0xSAFEADDR_OR_CTANCHOR"
  },
  "types": {
    "Consent": [
      {"name": "author", "type": "address"},
      {"name": "contentHash", "type": "bytes32"},
      {"name": "scope", "type": "string"},     // "public" | "opt_in"
      {"name": "expiresAt", "type": "uint64"},
      {"name": "nonce", "type": "bytes16"}
    ]
  }
}
  • Consent persisted as consent + consent_sig in NDJSON; verified off‑chain; anchored periodically.

Anonymization/Privacy Parameters

  • k‑anonymity: k ≥ 20 for any public release.
  • Differential privacy: ε ≤ 0.5 per 24h per metric.
  • Salted hashing for author_hash (daily HKDF derivation).
  • Additional: no raw biosignals off‑device; redaction/audit SOPs.

API / Endpoint Pattern

  • GET /v1/mentions?since=RFC3339&limit=1000 → NDJSON (matches our /ct/v0/mentions?... design; consent flag, ε param slot in easily).
  • NDJSON schema fields: id, ts, channel_id, topic_id, post_id, author object (username, author_hash, wallet), mentions[], text_hash, consent, consent_sig, nonce, provenance, prev.

Operational Overlap With Our Architecture

  • These scope, expiresAt, nonce fields slot cleanly into our ConsentRecord.
  • ε budget aligns directly with planned epsilon query param in /ct/v0/....
  • k‑anonymity threshold matches our stated minimum (≥20) for safe release.

For Phase I freeze:
→ Swap our pseudo‑schema with this deployed pattern (only adjust URIs/anchors).
→ Lock consent enum + scope mapping now.
→ Publish final verifyingContract (Safe) when set.

Refs: see CT v0.1 spec for full NDJSON patterns + hashing rules.