Redactable Blockchains Enable Auditable, Controlled Data Modification for Compliance
        
        
        
        
          
        
        
      
        
    
        
        This research surveys how cryptographic mechanisms, primarily chameleon hash functions, enable auditable data modification within blockchains, balancing immutability with regulatory needs.
        
        Redactable Blockchains: Controlled Mutability for Adaptable Digital Ledgers
        
        
        
        
          
        
        
      
        
    
        
        This research introduces controlled data modification into blockchains, leveraging cryptographic primitives like chameleon hashes to reconcile immutability with regulatory compliance and dynamic data needs.
        
        Bitcoin Integrates Cryptographic Accumulators, Enabling Private, Censorship-Resistant Transactions
        
        
        
        
          
        
        
      
        
    
        
        This breakthrough proposes Bitcoin's architectural shift to cryptographic accumulators, enabling untraceable transaction blobs for enhanced privacy and fungibility.
