๐Ÿ“‹ Data Format
โš™๏ธ Algorithms
๐Ÿ”— Protocol
๐Ÿ”Œ Integration
๐Ÿงช Test

๐Ÿ“‹ Deletion Request Data Format

Define and validate data formats for Right to be Forgotten requests compliant with GDPR Article 17

Standard Schema: WIA-LEG-009 defines a universal format for deletion requests that works across jurisdictions (GDPR, CCPA, LGPD, etc.)





๐Ÿ“„ Verification Certificate Format

Cryptographic proof of deletion with verifiable certificates

{ "certificateId": "CERT-DEL-2025-12345", "requestId": "REQ-2025-67890", "dataSubject": { "hash": "sha256:a1b2c3d4...", // Hashed identifier "jurisdiction": "EU" }, "deletionDetails": { "categoriesDeleted": ["profile", "activity", "communications"], "recordsDeleted": 1247, "storageLocations": ["primary_db", "backup_db", "cache", "cdn"], "completionTimestamp": "2025-12-25T15:45:00Z" }, "verification": { "method": "merkle_proof", "merkleRoot": "0x1a2b3c4d...", "proofChain": [...], "witnessSignatures": [...] }, "cryptographicProof": { "algorithm": "ED25519", "signature": "...", "publicKey": "..." }, "auditTrail": { "initiatedBy": "data_subject", "approvedBy": "dpo@company.com", "verifiedBy": "third_party_auditor", "chainOfCustody": [...] } }

โš™๏ธ Deletion Algorithms

Cryptographic and technical methods for data erasure and verification

1. Secure Data Erasure

function secureErase(data: PersonalData): DeletionProof { // 1. Data Discovery - Find all copies const locations = await discoverAllDataLocations(data.userId); // 2. Multi-pass Overwrite (DoD 5220.22-M standard) for (const location of locations) { await overwriteWithPattern(location, RANDOM_PATTERN); await overwriteWithPattern(location, COMPLEMENT_PATTERN); await overwriteWithPattern(location, RANDOM_PATTERN); await verifyOverwrite(location); } // 3. Generate Merkle proof of deletion const merkleProof = generateMerkleProof(locations); // 4. Create cryptographic certificate return { deletionHash: sha256(locations + timestamp), merkleRoot: merkleProof.root, signature: sign(privateKey, merkleProof.root) }; }

2. Blockchain Erasure via Key Destruction

function blockchainErasure(encryptedData: string, keyId: string): void { // Challenge: Blockchain is immutable // Solution: Destroy encryption keys, making data unrecoverable // 1. Verify data is encrypted on-chain assert(isEncrypted(encryptedData)); // 2. Provably destroy encryption key const keyDestructionProof = await destroyKeyWithProof(keyId); // 3. Record key destruction on-chain await recordKeyDestruction(keyId, keyDestructionProof); // 4. Data remains on blockchain but is cryptographically erased // (cannot be decrypted without the key) return { status: "cryptographically_erased", proof: keyDestructionProof, timestamp: Date.now() }; }

3. Search Engine Delisting Algorithm

async function requestSearchDelisting( url: string, reason: DelistingReason ): Promise { // 1. Submit delisting request to search engines const requests = await Promise.all([ submitToGoogle(url, reason), submitToBing(url, reason), submitToOtherEngines(url, reason) ]); // 2. Monitor delisting status const monitor = setInterval(async () => { const stillIndexed = await checkIndexStatus(url); if (!stillIndexed) { clearInterval(monitor); generateDelistingCertificate(url); } }, 3600000); // Check hourly // 3. Verify with cache checks await verifyCacheRemoval(url); return { status: "pending", trackingIds: requests }; }

๐Ÿ”— Right to be Forgotten Protocol

End-to-end protocol for deletion request processing and verification

Protocol Workflow

  1. Request Submission
    Data subject submits deletion request with identity verification
  2. Identity Verification
    Multi-factor authentication to prevent malicious deletion requests
  3. Legal Assessment
    Automated check for legal obligations to retain data (e.g., financial records)
  4. Data Discovery
    Scan all systems to locate all instances of personal data
  5. Deletion Execution
    Execute secure deletion across all storage locations (primary, backup, cache, CDN)
  6. Third-party Notification
    Notify data processors and partners to delete shared data
  7. Verification
    Generate cryptographic proof that data has been deleted
  8. Certificate Issuance
    Issue verifiable deletion certificate to data subject
Protocol Timing: GDPR requires response within 30 days. WIA-LEG-009 protocol targets completion within 7-14 days for standard requests.

Smart Contract Implementation

// Solidity Smart Contract for Deletion Verification contract DeletionRegistry { struct DeletionRecord { bytes32 requestHash; address dataController; uint256 timestamp; bytes32 merkleRoot; bool verified; } mapping(bytes32 => DeletionRecord) public deletions; event DeletionRecorded( bytes32 indexed requestHash, address indexed dataController, uint256 timestamp ); function recordDeletion( bytes32 requestHash, bytes32 merkleRoot, bytes memory signature ) public { require(verifySignature(requestHash, signature), "Invalid signature"); deletions[requestHash] = DeletionRecord({ requestHash: requestHash, dataController: msg.sender, timestamp: block.timestamp, merkleRoot: merkleRoot, verified: true }); emit DeletionRecorded(requestHash, msg.sender, block.timestamp); } function verifyDeletion(bytes32 requestHash) public view returns (bool) { return deletions[requestHash].verified; } }

๐Ÿ”Œ Integration Guide

Integrate Right to be Forgotten capabilities into your systems

TypeScript/JavaScript SDK

import { RightToBeForgettenClient } from '@wia/rtbf-sdk'; // Initialize client const rtbf = new RightToBeForgettenClient({ apiKey: 'your-api-key', jurisdiction: 'EU', environment: 'production' }); // Submit deletion request const request = await rtbf.submitDeletionRequest({ dataSubject: { email: 'user@example.com', userId: 'user_12345', verification: { method: 'email_otp', code: '123456' } }, categories: ['profile', 'activity', 'communications'], reason: 'gdpr_article17_withdrawal_of_consent', jurisdiction: 'EU' }); console.log('Request ID:', request.id); console.log('Status:', request.status); // Check deletion status const status = await rtbf.checkStatus(request.id); console.log('Progress:', status.progress); // 0-100% console.log('Stage:', status.currentStage); // e.g., "data_discovery" // Retrieve deletion certificate if (status.completed) { const certificate = await rtbf.getCertificate(request.id); console.log('Certificate:', certificate); // Verify certificate const isValid = await rtbf.verifyCertificate(certificate); console.log('Valid:', isValid); }

REST API

POST https://api.wia.org/v1/rtbf/deletion-request Content-Type: application/json Authorization: Bearer YOUR_API_KEY { "dataSubject": { "email": "user@example.com", "userId": "user_12345" }, "categories": ["profile", "activity"], "reason": "gdpr_article17", "verification": { "method": "email_otp", "code": "123456" } } Response: { "requestId": "REQ-2025-12345", "status": "processing", "estimatedCompletion": "2025-12-30T10:00:00Z", "trackingUrl": "https://rtbf.wia.org/track/REQ-2025-12345" }

Search Engine Integration

// Google Search Console API const googleDelisting = await rtbf.searchEngine.requestDelisting({ engine: 'google', urls: [ 'https://example.com/user/profile/12345', 'https://example.com/posts/by/user12345' ], reason: 'gdpr_right_to_be_forgotten', jurisdiction: 'EU', dataSubject: { name: 'John Doe', verification: {...} } }); // Monitor delisting status const delistingStatus = await rtbf.searchEngine.checkDelisting( googleDelisting.requestId ); console.log('Delisted:', delistingStatus.delisted); console.log('Cache cleared:', delistingStatus.cacheCleared);

Platform Support

โœ“ Web Applications
โœ“ Mobile Apps (iOS/Android)
โœ“ Blockchain Systems
โœ“ Cloud Storage (AWS/GCP/Azure)
โœ“ Databases (SQL/NoSQL)
โœ“ Search Engines
โœ“ CDN & Caching
โœ“ Social Media Platforms

๐Ÿงช Test Deletion Request

Simulate a complete deletion request workflow





๐Ÿ“Š Deletion Metrics

247
Requests Processed (30 days)
8.5 days
Average Completion Time
99.2%
Successful Deletions
100%
Certificate Verification Rate

๐Ÿ“‹ Recent Test Results

Request ID Data Subject Status Records Deleted Completion
REQ-2025-001 user_***45 Completed 1,247 7 days
REQ-2025-002 user_***67 Processing - 3 days
REQ-2025-003 user_***89 Completed 892 5 days
REQ-2025-004 user_***12 Legal Review - 14 days