Cryptographic Blockchain

DISTRIBUTED LEDGERS
Construct a decentralized ledger, mine blocks using cryptographic hashes, and learn how consensus prevents tampering.
Step 1: Learn
Step 2: Attack
Step 3: Blockchain
Step 4: Review

Standard Database

A traditional database can be hacked easily. Drag the fake transaction into Block 02.

Record 01
Transaction DataOrigin Record
Record 02
Transaction DataAlice -> Bob $50
Record 03
Transaction DataBob -> Charlie $10
Drag To Alter Data
Fake Transaction
Alice -> Eve $999