Here’s what I noticed — many newcomers to crypto make the same mistake. They send биткоин to an эфириума address, thinking that all blockchains work the same way. The result is predictable: the funds are lost forever. That’s why it’s important to figure out what a network in cryptocurrency is and how it works.

Essentially, a blockchain network is an open database where all transactions are stored as blocks connected into a chain. That’s where the name comes from — chain of blocks, a chain of blocks. But the main thing you need to understand is that each network exists independently. Bitcoin, Ethereum, Solana, Polygon — all of these are separate ecosystems that do not communicate with each other in any way.

This means that what a network in cryptocurrency is isn’t just a technical definition, but a practical security question. If you try to send биткоин from a биткоин-сети address to an Ethereum wallet address, the transaction may go through, but your funds will be locked or lost. I’ve seen cases where people tried to recover such transfers — it takes time, money, and help from specialists. Sometimes, the cost of recovery is higher than the amount that was actually lost.

But there is a solution — blockchain bridges, or cross-chain bridges. These are services that allow you to move tokens from one network to another. When you use a bridge, this is what happens: your original token is locked on the source network, and on the target network its wrapped version is created — for example, Wrapped Bitcoin (wBTC) on the Ethereum network.

An important point — this is not the same биткоин. A wrapped token is already a different asset, the value of which is pegged to the original, but it is a separate token. If you want to get your биткоин back, you send the wrapped version back to the мост provider, and it burns it, after which you receive the original биткоин.

Bridges are also used to convert tokens between standards — for example, from ERC-20 to BEP-20. So understanding what a network in cryptocurrency is and how they interact through мосты is a basic skill for anyone working with multiple networks. This helps you avoid expensive mistakes and manage your assets better.