layer 0 vs layer 1 blockchain main blockchain

My question is that layer 0 and layer 1 will be called main blockchains?

You are right both layer 0 and layer 1 are main blockchains but the basic difference between them is that layer 1 is a standalone blockchain which lacks scaling and is isolated from other blockchains they have all the functionalities on single chain while on the other hand layer 0 acts as relay between different chains through which different chains can communicate hence provides scaling.

Bitcoin and Ethereum are examples of layer1 blockchains and Polkadot and Cosmos are examples of layer 0 blockchains.

my second question is that while initially creating blockchain the first question we must decide is that on which layer our blockchain will be layer 0 or layer 1?

For creating an new blockchain it totally depends on your use case, if you want to act as a hub for different blockchains than go for layer 0. If you want a standalone blockchain than go for layer 1.

In the context of blockchain technology, layer 0, layer 1, and layer 2 refer to different levels of the blockchain stack. Layer 0 is the underlying physical layer that deals with the hardware and network infrastructure. Layer 1 is the main blockchain layer that directly handles transactions and smart contracts. Layer 2 is a higher-level layer that provides additional functionality to layer 1, such as scaling solutions and interoperability.

To answer your first question, both layer 0 and layer 1 can be considered main blockchains. Layer 0 is often referred to as the "base layer" of the blockchain, while layer 1 is the primary layer for processing transactions and executing smart contracts.

Regarding your second question, the decision of which layer to build a blockchain on depends on various factors, such as the project's requirements, technical capabilities, and goals. In some cases, building a blockchain on layer 0 may be the best choice for scalability and interoperability, while in other cases, layer 1 may be more appropriate for handling transactions and smart contracts. It ultimately depends on the specific needs of the project.

Layer 0 blockchains provide the underlying infrastructure, allowing for multiple Layer 1 blockchains to be built on top. Layer 1 blockchains are the main networks (like Bitcoin or Ethereum) that process and record transactions directly on their own chains.

Question 1: Are Layer 0 and Layer 1 called main blockchains?

Both Layer 0 and Layer 1 are main blockchains but with different purposes. Layer 1 handles core operations, while Layer 0 supports multiple Layer 1s and their interoperability.

Question 2: Should we decide if our blockchain will be Layer 0 or Layer 1 initially?

Depends on your use purpose

Layer 0:

• Facilitates creation and interoperability of multiple Layer 1 blockchains.
• Infrastructure for communication and data sharing among blockchains.

Layer 1:

• Standalone blockchain handling its own transactions and operations. Focus on Consensus mechanisms, transaction validation, security.