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Olvis Gil · EduNode · 5 min readBlockchain is one of the most transformative technologies of our time. In this workshop, we explore what blockchain is, how it works, and how you can apply it to your day-to-day business life.
A blockchain is a distributed ledger technology (DLT) that records transactions across many computers so that the record cannot be altered retroactively. Think of it as a shared Google Doc that everyone can read but no one can secretly edit — every change is visible and permanent.

Each "block" in the chain contains a set of transactions, a timestamp, and a cryptographic hash of the previous block. This chaining of blocks makes it virtually impossible to alter historical records without changing all subsequent blocks — which would require the consensus of the entire network.
Blockchain technology is being applied across many industries: supply chain management for tracking goods from origin to shelf, financial services for cross-border payments, healthcare for secure patient data sharing, and real estate for transparent property records.

The Stellar network is one of the most accessible blockchain platforms for building real-world financial applications. With fast transaction times (3-5 seconds) and extremely low fees, it is ideal for payment applications, tokenization, and decentralized finance.
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