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What is Layer 1 in blockchain?
Layer 1 is the main foundation of a blockchain. It is the original network where transactions are recorded, validated, and stored without relying on another structure.
In other words, it is like the “operating system” of the entire blockchain ecosystem.
Examples of Layer 1
Some well-known Layer 1 blockchains are:
Bitcoin → The first blockchain, focused on digital money.
Ethereum → Allows smart contracts and decentralized applications.
Solana → Stands out for its high speed and low costs.
What does Layer 1 do?
Processes transactions
Validates and records operations on the network.
Maintains security
Uses mechanisms like:
Proof of Work (PoW)
Proof of Stake (PoS)
Defines the rules
Each blockchain has its own rules and protocols.
Main issue: Scalability
Layer 1 networks often have limitations such as:
Slow transactions during peak demand
High costs (like gas in Ethereum)
Solutions
To improve this, there are two approaches:
Improvements in Layer 1 itself (e.g., changes in the protocol)
Layer 2 solutions that function on top to accelerate processes
In short
Layer 1 is the foundation of every blockchain, where all the essentials occur: security, validation, and data recording. Without it, the crypto ecosystem would not exist.
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