## 3 Transformative Impact and Ethical Implications of AI in Healthcare
### Blockchain and GDPR: An In-Depth Analysis
#### 5.3.1 Reconciling Blockchain Technology with GDPR Compliance Challenges
\begin{table}
\begin{tabular}{p{56.9 pt} p{56.9 pt} p{56.9 pt} p{56.9 pt} p{56.9 pt} p{56.9 pt}} \hline \hline
**Aspect** & **Traditional Data Storage** & **Blockchain Technology** & **Considerations and Challenges** & **Impact on User Privacy** & **Technological Adaptability** \\ \hline \multirow{3}{*}{Data Modification} & Supports GDPR alignment & Challenges in modification & Balancing blockchain with GDPR & Maintains user control over data & Requires innovative solutions \\ \hline \multirow{3}{*}{Data Erasure} & Complies with & Difficulties in data & Exploring technical solutions & Protects individual privacy & Needs adaptable data management \\  & forgotten’ & & & & \\ \hline \multirow{3}{*}{Data Security} & Vulnerable to centralized attacks & Enhanced via decentralization & Developing robust cybersecurity & Increases data protection & Enhances security with decentralization \\ \hline \multirow{3}{*}{Data Transparency} & Varies in transparency transparency & High transparency due to ledger system & Balancing transparency with privacy & Ensures data traceability & Can be technically complex \\ \hline \multirow{3}{*}{Accountability} & Clear responsibilities under GDPR & Complexities in defining roles & Clarifying legalities in blockchain & Enhances legal compliance & May require regulatory adjustments \\ \hline \multirow{3}{*}{Data Accessibility} & Centralized control & Distributed access enhances availability & Ensuring equitable access & Improves data availability & Requires effective data distribution \\ \hline \multirow{3}{*}{Data Controllers and Joint Controllers} & Clearly defined in GDPR & Complexities in private/public blockchains & Defining roles under GDPR in blockchain context & Enhances clarity in data management & Data Controllers and Joint Controllers \\ \hline \multirow{3}{*}{Data Minimization and Purpose Limitation} & \multirow{3}{*}{Required by GDPR} & Challenged by blockchain’s nature & Aligning blockchain’s append-only nature with GDPR & Affects scope of data storage & Data Minimization and Purpose Limitation \\ \hline \multirow{3}{*}{Technical Solutions for GDPR compliance} & Traditional methods available & Development of blockchain-centric solutions & Exploring zero-knowledge proofs, channeled hashes, etc. & Potential for improved compliance & Technical Solutions for GDPR compliance \\ \hline \multirow{3}{*}{Legal Grounds for Processing Personal Data} & \multirow{3}{*}{Defined under GDPR} & Varied interpretations in blockchain & Assessing legal basis for data processing in blockchain & Determines the extent of user control & Legal Grounds for Processing Personal Data \\ \hline \multirow{3}{*}{Data Subject Rights} & Clearly defined rights and mechanisms & Technical and governance challenges & Application of rights like access, rectification, erasure & Direct impact on user autonomy & Data Subject Rights \\ \hline \multirow{3}{*}{Data Protection by Design and Default} & \multirow{3}{*}{GDPR compliance} & Blockchain’s potential alignment & Leveraging blockchain for GDPR’s design and default requirements & Enhances & Data Protection by proactive data & Data Protection by Design and \\ \hline \hline \end{tabular}
\end{table} 
Table 4: In-depth comparison of traditional data storage and blockchain in GDPR compliance.