7.2. What Is Blockchain? A Simple Explanation

Blockchain is a technology that allows information or transactions to be recorded on a shared digital network, where data is grouped into blocks that are connected to one another.

In simple terms, it works like a digital record that many people or computers can verify, providing greater traceability and transparency for certain types of transactions.

To understand crypto, it is helpful to first understand blockchain.

A blockchain is a distributed database. This means that the information does not necessarily exist on a single central server. Instead, it may be replicated and verified by many participants across a network.

The word blockchain means “chain of blocks.” Each block contains information, such as transactions or records. When a block is completed, it is connected to the previous block, forming a chain. This structure makes it more difficult to alter past information because doing so would require changing the chain and convincing the network to accept that modification.

In the case of cryptocurrencies such as Bitcoin, the blockchain records who sends funds, who receives them, and how much is transferred, without requiring a traditional bank to serve as the sole party responsible for validating the transaction.

However, blockchain is not used only for cryptocurrencies. It may also be used for smart contracts, tokenized assets, traceability, digital identity, decentralized finance, and other applications. In the “RWAs and Real-World Assets”chapter, we explain how tokenization may use technology to digitally represent certain assets or economic rights.

One of blockchain’s most important characteristics is traceability. Many networks allow transactions to be viewed publicly or independently verified. This may provide greater transparency, although it does not mean that everything is automatically safe, legal, or risk-free.

Another important characteristic is programmability. Some blockchains allow smart contracts to be created. These are digital instructions that execute when certain conditions are met. This has enabled the development of financial applications, tokens, protocols, and other digital products.

However, blockchain also involves risks. These may include smart contract errors, security failures, lost private keys, fraud, projects without real backing, or regulatory challenges. The technology alone does not guarantee that an investment is sound.

Blockchain is a tool. Its value depends on how it is used, the problem it solves, and the legal, economic, or technological structure behind it.

No. Bitcoin uses blockchain, but blockchain is a broader technology that may be used for many other applications.

Not always. It may reduce certain intermediaries or manual processes, but many projects still require issuers, custodians, platforms, regulators, auditors, technology providers, or other parties.

No. Blockchain may provide traceability and transparency, but technological risks, programming errors, fraud, loss of access, and poorly structured projects may still exist.

Now that you understand blockchain, the next step is to learn about one of the most widely used types of crypto assets in Latin America.

Continue with: “What Are Stablecoins and What Are They Used For?”