This simulation demonstrates differentiating properties of blockchain such as Immutability, Decentralization, and Performance.

Immutability

• This page demonstrates the immutability of blockchain. Add products and click the BUY button to purchase them.
  

• Click the EDIT TABLE button to modify the data in the RDBMS Representation Table.
  

• Once you have successfully edited the data in the RDBMS Representation Table, observe how the Blockchain Representation reflects these updates immutably, ensuring that any modification creates a new linked block rather than altering existing data.

Decentralization

• This page demonstrates the concept of decentralization in blockchain. To demonstrate data availability, create a transaction by clicking the BUY button.

• Observe how data is managed in the conventional and blockchain databases.
  

• Click Simulate Single Point Failure to observe how a failure impacts the conventional and blockchain databases.

• When the server fails, try to buy a new item. A message will appear stating: “The server is currently down. Choose an option to proceed.” You will be given two options: Fix and Continue or Continue Without Fix.

Fix and Continue – Repairs the failed server and restores normal operation. Continue Without Fix – Proceeds while the server remains down. In this case:

• In the Conventional Database, new transactions cannot be processed because the central server has failed.
• In the Blockchain Database, even if one node fails, other nodes remain active.

Performance

• This page simulates multiple transactions to demonstrate and compare the performance of RDBMS and blockchain systems.

• Select the required products (or use Select All) and click “Buy Selected Products” to observe how each system processes transactions and updates the data.

• Observe the RDBMS Representation to see how transactions are updated instantly in a centralized table.

• Observe the Blockchain Representation, where each transaction is processed sequentially and recorded as a new linked block, with the total time reflecting the sum of individual block creation times.